U.S. public vehicle records

Mercedes-Benz B 250E problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

28 owner complaints analyzed

5 distinct recall campaigns

21,500 mi median reported failure mileage

Scope: 2014 to 2017 model years. Data updated: 2026-10-03 (October 3, 2026). 6 complaints include usable failure mileage. View data status.

This selection has limited data. It remains available for lookup but is excluded from search indexing.

Owner-reported patterns

Most common problems

Engine is the most frequently named component, appearing in 14 of 28 complaints (50.0%). A complaint can name multiple components.

Recurring terms in complaint narratives
Topic	Matching reports	Share of complaints
Engine operation	3	10.7%
Electrical and battery issues	3	10.7%
Transmission and shifting	2	7.1%
Braking behavior	2	7.1%
Steering behavior	2	7.1%

Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Engine

Power Train

Electrical System

Fuel/Propulsion System

Seat Belts

Air Bags

Service Brakes

Steering

Engine: 14; Power Train: 11; Electrical System: 10; Fuel/Propulsion System: 5; Seat Belts: 3; Air Bags: 2; Service Brakes: 2; Steering: 1

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000

25,000 to 49,999

50,000 to 74,999

75,000 to 99,999

100,000 to 149,999

150,000 and above

Under 25,000: 3; 25,000 to 49,999: 2; 50,000 to 74,999: 1; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0

Under 25,000 miles has the most reports with usable mileage (3). 22 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

2017

2018

2021

2022

2023

2024

2025

2017: 1; 2018: 2; 2021: 1; 2022: 9; 2023: 6; 2024: 4; 2025: 5

Pattern summary

Engine leads the component reports. Engine operation appears in 3 complaint narratives. Electrical and battery issues appears in 3 complaint narratives. Transmission and shifting appears in 2 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Complaint evidence

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 11547557 · 2023-10-01 (October 1, 2023)

At 23,596 total vehicle mileage, the electric drive motor failed while driving. This occurred two days and less than 50 miles after having an annual service performed at an authorized Mercedes Benz dealership. Failure resulted in sudden loss of power alternating with full torque power at any throttle position making the car uncontrollable and hazardous to the occupants and other cars/occupants on the road. No warning indicators, vibrations, or unusual sounds noticed prior to failure. Problem confirmed at the dealership that drive motor had …

Owner-reported narrative. Look up ODI 11547557 at NHTSA ↗

Owner report 11553101 · 2023-11-01 (November 1, 2023)

My car just stalled and was not able to move on the highway exit which caused a high risk for the safety of passengers and the safety of others. The car has been towed to a Mercedes Dealer in West Covina, California. and they indicate that the coolant leaked into the drive motor and caused the car to stop. Prior to this car stall, there was no warning lamp, messages, or other symptoms of the problem prior to the failure. After the car stalls on the street, a failure message appeared asking to send the car to the shop.

Owner-reported narrative. Look up ODI 11553101 at NHTSA ↗

Owner report 11403060 · 2021-03-15 (March 15, 2021)

TL* THE CONTACT OWNS A 2014 MERCEDES BENZ B250E. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 30 MPH, THE BATTERY LIGHT FLASHED AS THE VEHICLE BEGAN TO LOSE POWER. DESPITE THE FAILURE, THE CONTACT WAS ABLE TO COAST THE VEHICLE TO HER HOME. THE NEXT DAY, MULTIPLE ATTEMPTS WERE MADE TO START THE VEHICLE AS SEVERAL WARNING LIGHTS APPEARED ON THE INSTRUMENT PANEL. DUE TO THE FAILURE, THE CONTACT HAD THE VEHICLE TOWED TO MERCEDES-BENZ OF ONTARIO (3787 E GUASTI RD, ONTARIO, CA 91761) WHERE THEY DIAGNOSED THE VEHICLE WITH A DEFECTIVE DRIVE E…

Owner-reported narrative. 36,700 miles reported. Look up ODI 11403060 at NHTSA ↗

Owner report 11467661 · 2022-06-05 (June 5, 2022)

Glad to have found this group on Facebook: https://www.facebook.com/groups/bclasselectric?sorting_setting=TOP_POSTS Here's my situation with my B-250e 2017 model with 38,000 miles. Bought from a used car dealership in California. Took it to Mercedes-Benz of South Bay. First, they had it for 2 months and could not diagnose the problem with the error messages. This is when it was still drivable. They escalated to MB USA and Germany. Finally, Germany told them what to do to remove the alert and it worked fine. I drove it for 80 miles and now the …

Owner-reported narrative. Look up ODI 11467661 at NHTSA ↗

Owner report 11468355 · 2022-06-08 (June 8, 2022)

When trying to leave a shopping complex in my Mercedes Benz B250e, the vehicle suddenly just wouldn't move in either drive or reverse. All instruments looked normal, there were no warnings or messages on the console, and the vehicle was fully charged, but the electric motor just would not engage even though the transmission was engaged. The vehicle was towed to the nearness Mercedes Benz dealership in Littleton, where they diagnosed the problem simply as a "failed electric drive". They could offer no explanation as to why the drive failed, b…

Owner-reported narrative. 16,000 miles reported. Look up ODI 11468355 at NHTSA ↗

Owner report 11585036 · 2024-04-24 (April 24, 2024)

The contact owns a 2017 Mercedes-Benz B250E. The contact stated that while reversing from the garage at 3–5 MPH, the contact depressed the park button. The vehicle attempted to go into the park position. There was an abnormal noise detected. There were no warning lights illuminated. The vehicle was towed to the local dealer, where it was diagnosed that the transmission fluid needed to be replaced. The vehicle was repaired, but the failure recurred. While driving at low speeds, the vehicle went into lock mode. The vehicle was taken back to the s…

Owner-reported narrative. 27,000 miles reported. Look up ODI 11585036 at NHTSA ↗

Owner report 11694260 · 2025-10-18 (October 18, 2025)

Subject: Urgent Safety Concern – Immediate Attention Required Dear To Whom it may Concern, I am writing to urgently express serious safety concerns with the vehicle I recently [purchased/test drove/had serviced]. Seat Belt Malfunction: The children’s seat belts are not retracting properly, posing a significant safety risk. Braking Issues: Despite being told the brakes are at 90%, they feel like they are grinding metal. This is highly concerning. Alignment Problem: The vehicle is veering aggressively to the right during normal driving, whic…

Owner-reported narrative. Look up ODI 11694260 at NHTSA ↗

Owner report 11048875 · 2017-11-28 (November 28, 2017)

TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ B250. WHILE DRIVING 65 MPH AND ACCELERATING, THE BRAKES WERE APPLIED BUT FAILED TO RESPOND. ADDITIONALLY, THE VEHICLE MADE AN ABNORMAL IRKING NOISE. THE VEHICLE WAS TAKEN TO A LOCAL DEALER (KEYES EUROPEAN, 5400 VAN NUYS BLVD, VAN NUYS, CA 91401), BUT THEY WERE NOT ABLE TO DUPLICATE THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE ISSUE AND ADVISED THE CONTACT TO CONTINUE TO DRIVE THE VEHICLE. THE FAILURE MILEAGE WAS 1,000.

Owner-reported narrative. 1,000 miles reported. Look up ODI 11048875 at NHTSA ↗

Owner report 11627103 · 2024-11-24 (November 24, 2024)

Complaint submitted to Transport Canada: “The Eco Start function on the Mercedes Benz B250 does not work and so intermittently shuts off the car without warning. Very very dangerous. When stopped at a stop light, unless the eco smart button is turned off the car engine will suddenly shut off. Red text appears in the display above steering wheel stating gear shift error contact dealership. I contacted Mercedes Benz Canada who told me that they would not be liable for the repair. We have researched whether the function can be disabled. There does…

Owner-reported narrative. Look up ODI 11627103 at NHTSA ↗

Owner report 11633846 · 2025-01-03 (January 3, 2025)

On Wednesday [XXX] I was driving my electric vehicle to work. I exited the freeway and as soon as I stopped at the light for the off ramp a warning light indicator appeared stating Coolant Low. I found this odd as I was unaware of Electric Vehicles using Coolant. I clicked the OK button on the steering wheel and the message was acknowledged and disappeared from the screen. When the Light changed to green I proceeded to turn towards my office. At the next traffic light a new message popped up stating see service agent before starting your c…

Owner-reported narrative. Look up ODI 11633846 at NHTSA ↗

Compare model years

Recalls by model year

All campaigns in the snapshot affecting each model year, including recalls announced years later.

From yearThrough year

Recall campaigns

Shared campaigns appear once in each affected model year.

2014

2015

2016

2017

2014: 3; 2015: 3; 2016: 2; 2017: 3

First model yearSecond model year

Year-by-year records

Mercedes-Benz B 250E model-year comparison
Model year	Complaints	Recalls	Change in recalls
2014	1	3	Not available
2015	3	3	0
2016	4	2	-1
2017	20	3	+1

Explore the data

Vehicle analysis explorer

Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.

Data completeness

28 unique complaints in this selection. Analysis snapshot: 2026-10-03.

21.4%Usable mileage6 / 28 records

100.0%Valid incident date28 / 28 records

100.0%Valid filing date28 / 28 records

100.0%Ordered incident and filing dates28 / 28 records

Missing, zero and invalid mileage is excluded. Dates after the snapshot are excluded. Examples are limited selections, not a representative sample.

Problems by model year

Model-wide comparison of the eight most reported components across the model. Cells show counts and shares within each model year. Open a cell for source examples.

From model yearThrough model year

Component complaint heatmap
Component	2014	2015	2016	2017
Engine	00.0% No examples available for this selection.	133.3% ODI 11466832 Motor/Drive Unit making "whirring" noise that got progressively worse over time. While under warranty MB dealer stated that everything was fine, now after the warranty has expired a different dealer says it is failing and needs to be replaced. Independent shop says there is a potential design defect with the Tesla motor used in this vehicle (many early model S motors were replaced by tesla.) Look up ODI 11466832 at NHTSA ↗	250.0% ODI 11499893 2016 MERCEDES BENZ B250 E. CONSTITUENT STATED THAT THE COOLANT SEEPED INTO THE ENGINE CAUSING ENGINE FAILURE. Look up ODI 11499893 at NHTSA ↗	1155.0% ODI 11467276 Coolant leaked into drive unit causing total failure. This is a known issue and should be subject to a recall of these cars. As a dealer we’ve had repeated issues with this. Look up ODI 11467276 at NHTSA ↗
Power Train	00.0% No examples available for this selection.	133.3% ODI 11466832 Motor/Drive Unit making "whirring" noise that got progressively worse over time. While under warranty MB dealer stated that everything was fine, now after the warranty has expired a different dealer says it is failing and needs to be replaced. Independent shop says there is a potential design defect with the Tesla motor used in this vehicle (many early model S motors were replaced by tesla.) Look up ODI 11466832 at NHTSA ↗	00.0% No examples available for this selection.	1050.0% ODI 11078964 · 12,000 mi WHILE STOPPED IN TRAFFIC, THE VEHICLE AUTOMATICALLY SHIFTED TO NEUTRAL WITH NO WARNING OR NOTIFICATION. HAPPENED TWICE WITHIN AN HOUR DURING STOP AND GO TRAFFIC. Look up ODI 11078964 at NHTSA ↗
Electrical System	1100.0% ODI 11403060 · 36,700 mi TL* THE CONTACT OWNS A 2014 MERCEDES BENZ B250E. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 30 MPH, THE BATTERY LIGHT FLASHED AS THE VEHICLE BEGAN TO LOSE POWER. DESPITE THE FAILURE, THE CONTACT WAS ABLE TO COAST THE VEHICLE TO HER HOME. THE NEXT DAY, MULTIPLE ATTEMPTS WERE MADE TO START THE VEHICLE AS SEVERAL WARNING LIGHTS APPEARED ON THE INSTRUMENT PANEL. DUE TO THE FAILURE, THE CONTACT HAD THE VEHICLE TOWED TO MERCEDES-BENZ OF ONTARIO (3787 E GUASTI RD, ONTARIO, CA 91761) WHERE THEY DIAGNOSED THE VEHICLE WITH A DEFECTIVE DRIVE E… Look up ODI 11403060 at NHTSA ↗	00.0% No examples available for this selection.	125.0% ODI 11080257 MERCEDES NOTIFIED ME VIA LETTER OF A SAFETY PROBLEM WITH MY LEASED 2016 B250E IN NOVEMBER 2017 BUT SAYS PARTS AREN'T AVAILABLE UNTIL OCTOBER 2018. SO I AM DRIVING AN UNSAFE VEHICLE UNTIL THEN? Look up ODI 11080257 at NHTSA ↗	840.0% ODI 11467661 Glad to have found this group on Facebook: https://www.facebook.com/groups/bclasselectric?sorting_setting=TOP_POSTS Here's my situation with my B-250e 2017 model with 38,000 miles. Bought from a used car dealership in California. Took it to Mercedes-Benz of South Bay. First, they had it for 2 months and could not diagnose the problem with the error messages. This is when it was still drivable. They escalated to MB USA and Germany. Finally, Germany told them what to do to remove the alert and it worked fine. I drove it for 80 miles and now the … Look up ODI 11467661 at NHTSA ↗
Fuel/Propulsion System	00.0% No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.	525.0% ODI 11465948 I was on a busy street and my car failed to move. I got a message stating do not start the car until you contact the dealer. After getting the car to Mercedes Benz of Arrowhead they told me that "the drive motor is leaking coolant and is shorting itself out." This is an electric car - a 2017 Mercedes Benz B250e. After doing some research I found that this is a common issue with this model and that Mercedes knows about it. Look up ODI 11465948 at NHTSA ↗
Seat Belts	00.0% No examples available for this selection.	266.7% ODI 11694260 Subject: Urgent Safety Concern – Immediate Attention Required Dear To Whom it may Concern, I am writing to urgently express serious safety concerns with the vehicle I recently [purchased/test drove/had serviced]. Seat Belt Malfunction: The children’s seat belts are not retracting properly, posing a significant safety risk. Braking Issues: Despite being told the brakes are at 90%, they feel like they are grinding metal. This is highly concerning. Alignment Problem: The vehicle is veering aggressively to the right during normal driving, whic… Look up ODI 11694260 at NHTSA ↗	00.0% No examples available for this selection.	15.0% ODI 11480555 Motor failure after 50K mile. Car can only move and stop - move and stop. Need to replace Electric Engine Motor. Seat belt malfunction after 40K. Look up ODI 11480555 at NHTSA ↗
Air Bags	00.0% No examples available for this selection.	00.0% No examples available for this selection.	250.0% ODI 11080257 MERCEDES NOTIFIED ME VIA LETTER OF A SAFETY PROBLEM WITH MY LEASED 2016 B250E IN NOVEMBER 2017 BUT SAYS PARTS AREN'T AVAILABLE UNTIL OCTOBER 2018. SO I AM DRIVING AN UNSAFE VEHICLE UNTIL THEN? Look up ODI 11080257 at NHTSA ↗	00.0% No examples available for this selection.
Service Brakes	00.0% No examples available for this selection.	133.3% ODI 11694260 Subject: Urgent Safety Concern – Immediate Attention Required Dear To Whom it may Concern, I am writing to urgently express serious safety concerns with the vehicle I recently [purchased/test drove/had serviced]. Seat Belt Malfunction: The children’s seat belts are not retracting properly, posing a significant safety risk. Braking Issues: Despite being told the brakes are at 90%, they feel like they are grinding metal. This is highly concerning. Alignment Problem: The vehicle is veering aggressively to the right during normal driving, whic… Look up ODI 11694260 at NHTSA ↗	00.0% No examples available for this selection.	15.0% ODI 11048875 · 1,000 mi TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ B250. WHILE DRIVING 65 MPH AND ACCELERATING, THE BRAKES WERE APPLIED BUT FAILED TO RESPOND. ADDITIONALLY, THE VEHICLE MADE AN ABNORMAL IRKING NOISE. THE VEHICLE WAS TAKEN TO A LOCAL DEALER (KEYES EUROPEAN, 5400 VAN NUYS BLVD, VAN NUYS, CA 91401), BUT THEY WERE NOT ABLE TO DUPLICATE THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE ISSUE AND ADVISED THE CONTACT TO CONTINUE TO DRIVE THE VEHICLE. THE FAILURE MILEAGE WAS 1,000. Look up ODI 11048875 at NHTSA ↗
Steering	00.0% No examples available for this selection.	133.3% ODI 11694260 Subject: Urgent Safety Concern – Immediate Attention Required Dear To Whom it may Concern, I am writing to urgently express serious safety concerns with the vehicle I recently [purchased/test drove/had serviced]. Seat Belt Malfunction: The children’s seat belts are not retracting properly, posing a significant safety risk. Braking Issues: Despite being told the brakes are at 90%, they feel like they are grinding metal. This is highly concerning. Alignment Problem: The vehicle is veering aggressively to the right during normal driving, whic… Look up ODI 11694260 at NHTSA ↗	00.0% No examples available for this selection.	00.0% No examples available for this selection.

Darker cells indicate a larger share of submitted complaints. Components overlap. This measures complaint composition, not failure probability.

Failure mileage by component

Median and middle 50% of usable owner-reported mileages. Ranges require at least five records.

Component failure mileage distribution
Component	Mileage range (25th–75th percentile)	Median	Usable records	Examples
Engine	Too few reports for a range	44,000 mi	2 (sparse)	ODI 11468355 · 16,000 mi When trying to leave a shopping complex in my Mercedes Benz B250e, the vehicle suddenly just wouldn't move in either drive or reverse. All instruments looked normal, there were no warnings or messages on the console, and the vehicle was fully charged, but the electric motor just would not engage even though the transmission was engaged. The vehicle was towed to the nearness Mercedes Benz dealership in Littleton, where they diagnosed the problem simply as a "failed electric drive". They could offer no explanation as to why the drive failed, b… Look up ODI 11468355 at NHTSA ↗ ODI 11618068 · 72,000 mi The contact owns a 2017 Mercedes-Benz B250E. The contact stated while driving approximately 60 MPH, the vehicle the lost automotive power and stalled. The message "Shut Off Immediately" was displayed. The vehicle was later towed to the residence. The cause of the failure was not yet determined. The local dealer was notified of the failure. The manufacturer was not yet contacted. The failure mileage was 72,000. Look up ODI 11618068 at NHTSA ↗
Power Train	Too few reports for a range	16,000 mi	3 (sparse)	ODI 11078964 · 12,000 mi WHILE STOPPED IN TRAFFIC, THE VEHICLE AUTOMATICALLY SHIFTED TO NEUTRAL WITH NO WARNING OR NOTIFICATION. HAPPENED TWICE WITHIN AN HOUR DURING STOP AND GO TRAFFIC. Look up ODI 11078964 at NHTSA ↗ ODI 11468355 · 16,000 mi When trying to leave a shopping complex in my Mercedes Benz B250e, the vehicle suddenly just wouldn't move in either drive or reverse. All instruments looked normal, there were no warnings or messages on the console, and the vehicle was fully charged, but the electric motor just would not engage even though the transmission was engaged. The vehicle was towed to the nearness Mercedes Benz dealership in Littleton, where they diagnosed the problem simply as a "failed electric drive". They could offer no explanation as to why the drive failed, b… Look up ODI 11468355 at NHTSA ↗ ODI 11585036 · 27,000 mi The contact owns a 2017 Mercedes-Benz B250E. The contact stated that while reversing from the garage at 3–5 MPH, the contact depressed the park button. The vehicle attempted to go into the park position. There was an abnormal noise detected. There were no warning lights illuminated. The vehicle was towed to the local dealer, where it was diagnosed that the transmission fluid needed to be replaced. The vehicle was repaired, but the failure recurred. While driving at low speeds, the vehicle went into lock mode. The vehicle was taken back to the s… Look up ODI 11585036 at NHTSA ↗
Electrical System	Too few reports for a range	26,350 mi	2 (sparse)	ODI 11403060 · 36,700 mi TL* THE CONTACT OWNS A 2014 MERCEDES BENZ B250E. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 30 MPH, THE BATTERY LIGHT FLASHED AS THE VEHICLE BEGAN TO LOSE POWER. DESPITE THE FAILURE, THE CONTACT WAS ABLE TO COAST THE VEHICLE TO HER HOME. THE NEXT DAY, MULTIPLE ATTEMPTS WERE MADE TO START THE VEHICLE AS SEVERAL WARNING LIGHTS APPEARED ON THE INSTRUMENT PANEL. DUE TO THE FAILURE, THE CONTACT HAD THE VEHICLE TOWED TO MERCEDES-BENZ OF ONTARIO (3787 E GUASTI RD, ONTARIO, CA 91761) WHERE THEY DIAGNOSED THE VEHICLE WITH A DEFECTIVE DRIVE E… Look up ODI 11403060 at NHTSA ↗ ODI 11468355 · 16,000 mi When trying to leave a shopping complex in my Mercedes Benz B250e, the vehicle suddenly just wouldn't move in either drive or reverse. All instruments looked normal, there were no warnings or messages on the console, and the vehicle was fully charged, but the electric motor just would not engage even though the transmission was engaged. The vehicle was towed to the nearness Mercedes Benz dealership in Littleton, where they diagnosed the problem simply as a "failed electric drive". They could offer no explanation as to why the drive failed, b… Look up ODI 11468355 at NHTSA ↗
Service Brakes	Too few reports for a range	1,000 mi	1 (sparse)	ODI 11048875 · 1,000 mi TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ B250. WHILE DRIVING 65 MPH AND ACCELERATING, THE BRAKES WERE APPLIED BUT FAILED TO RESPOND. ADDITIONALLY, THE VEHICLE MADE AN ABNORMAL IRKING NOISE. THE VEHICLE WAS TAKEN TO A LOCAL DEALER (KEYES EUROPEAN, 5400 VAN NUYS BLVD, VAN NUYS, CA 91401), BUT THEY WERE NOT ABLE TO DUPLICATE THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE ISSUE AND ADVISED THE CONTACT TO CONTINUE TO DRIVE THE VEHICLE. THE FAILURE MILEAGE WAS 1,000. Look up ODI 11048875 at NHTSA ↗

Complaint and recall timeline

Explore monthly filing activity alongside recall announcements. Up to ten years of monthly history is available.

ComponentPeriod

Solid line: filed complaints. Dashed amber lines: recall announcement dates for this vehicle selection; markers include all recall components. The latest month is partial. Temporal proximity does not establish causation.

Monthly counts, recall campaigns and complaint examples

Monthly complaint and recall timeline
Month	Complaints	Campaigns announced	Examples
2024-11	1	None	ODI 11627103 Complaint submitted to Transport Canada: “The Eco Start function on the Mercedes Benz B250 does not work and so intermittently shuts off the car without warning. Very very dangerous. When stopped at a stop light, unless the eco smart button is turned off the car engine will suddenly shut off. Red text appears in the display above steering wheel stating gear shift error contact dealership. I contacted Mercedes Benz Canada who told me that they would not be liable for the repair. We have researched whether the function can be disabled. There does… Look up ODI 11627103 at NHTSA ↗
2024-12	1	None	ODI 11630844 While driving a notice to park the car and call for maintenance came up then while I was trying to get to safe stopping point the car went on to neutral and shut down while I was at speed. I turned the car back on and moved it to safety and called for roadside assistance Look up ODI 11630844 at NHTSA ↗
2025-01	1	None	ODI 11633846 On Wednesday [XXX] I was driving my electric vehicle to work. I exited the freeway and as soon as I stopped at the light for the off ramp a warning light indicator appeared stating Coolant Low. I found this odd as I was unaware of Electric Vehicles using Coolant. I clicked the OK button on the steering wheel and the message was acknowledged and disappeared from the screen. When the Light changed to green I proceeded to turn towards my office. At the next traffic light a new message popped up stating see service agent before starting your c… Look up ODI 11633846 at NHTSA ↗
2025-02	0	None	No examples available for this selection.
2025-03	0	None	No examples available for this selection.
2025-04	0	None	No examples available for this selection.
2025-05	0	None	No examples available for this selection.
2025-06	0	None	No examples available for this selection.
2025-07	0	None	No examples available for this selection.
2025-08	0	None	No examples available for this selection.
2025-09	1	None	ODI 11689123 My air bag light went on , and my car is displaying a fault on the drivers side air bag . I took the car to an authorized Mercedes dealer and they say they claim I need a new part . Please see RCMN-17V627 . The recall affects nearly 500,000 Mercedes-Benz vehicles from model years 2012 to 2018. Specific models include: B-Class electric (2014–2017) I can send pictures and other material . Look up ODI 11689123 at NHTSA ↗
2025-10	1	None	ODI 11694260 Subject: Urgent Safety Concern – Immediate Attention Required Dear To Whom it may Concern, I am writing to urgently express serious safety concerns with the vehicle I recently [purchased/test drove/had serviced]. Seat Belt Malfunction: The children’s seat belts are not retracting properly, posing a significant safety risk. Braking Issues: Despite being told the brakes are at 90%, they feel like they are grinding metal. This is highly concerning. Alignment Problem: The vehicle is veering aggressively to the right during normal driving, whic… Look up ODI 11694260 at NHTSA ↗
2025-11	0	None	No examples available for this selection.
2025-12	2	None	ODI 11705565 Stacy belts will not retract they remain in a loosened state and I am afraid they will not lock in an accident Look up ODI 11705565 at NHTSA ↗ ODI 11705166 In November 2024, the vehicle indicated "add coolant". The vehicle was brought to Mercedes Benz of Scottsdale for servicing. The dealership apparently added coolant without advising me that the B250-E has a 100% chance of failure to the Drive Unit / coolant intrusion unless a small part is replaced before coolant leaks into the inverter/entire engine. A few weeks later - the vehicle, while traveling on a highway, had a complete failure and essentially shutdown on moment's notice. It nearly caused a severe accident. Mercedes Benz USA and the… Look up ODI 11705166 at NHTSA ↗
2026-01	0	None	No examples available for this selection.
2026-02	0	None	No examples available for this selection.
2026-03	0	None	No examples available for this selection.
2026-04	0	None	No examples available for this selection.
2026-05	0	None	No examples available for this selection.
2026-06	0	None	No examples available for this selection.
2026-07	0	None	No examples available for this selection.
2026-08	0	None	No examples available for this selection.
2026-09	0	None	No examples available for this selection.
2026-10 (partial)	0	None	No examples available for this selection.

Emerging complaint spikes

Complete months in the latest six months with at least 10 complaints, at least twice the preceding 12-month average, and at least three square-root deviations above that average.

This is a descriptive screening rule, not a statistical defect finding. Publicity and reporting changes can increase submissions.

No complete months meet the spike thresholds for this selection.

Equal-age model-year comparison

Model-wide cumulative reports during the first three or five calendar years, starting with the model year (age 0). Only fully elapsed windows are compared.

Observation windowFirst model yearSecond model year

2016: 1 complaints · 2017: 2 complaints

Equal observation windows
Model year	Through age 0	Through age 1	Through age 2
2016	0	1	1
2017	1	2	2

Date coverage across each selected cohort

Date basis for all complaints in selected model years
Year	Incident dates used	Filing date fallbacks	Excluded dates
2016	4	0	0
2017	20	0	0

Incident date is preferred when valid and no later than filing; otherwise filing date is used. Model year approximates age. Equal observation time does not adjust for sales, distance driven or reporting delays. One complaint linked to multiple model years can appear in each cohort.

Components reported together

Each cell counts unique complaints naming both components. Open a nonzero cell for examples.

Component co-occurrence matrix
Component	Engine	Power Train	Electrical System	Fuel/Propulsion System	Seat Belts	Air Bags	Service Brakes	Steering
Engine	—	5 ODI 11466832 Motor/Drive Unit making "whirring" noise that got progressively worse over time. While under warranty MB dealer stated that everything was fine, now after the warranty has expired a different dealer says it is failing and needs to be replaced. Independent shop says there is a potential design defect with the Tesla motor used in this vehicle (many early model S motors were replaced by tesla.) Look up ODI 11466832 at NHTSA ↗ ODI 11468355 · 16,000 mi When trying to leave a shopping complex in my Mercedes Benz B250e, the vehicle suddenly just wouldn't move in either drive or reverse. All instruments looked normal, there were no warnings or messages on the console, and the vehicle was fully charged, but the electric motor just would not engage even though the transmission was engaged. The vehicle was towed to the nearness Mercedes Benz dealership in Littleton, where they diagnosed the problem simply as a "failed electric drive". They could offer no explanation as to why the drive failed, b… Look up ODI 11468355 at NHTSA ↗ ODI 11490473 The electric motor is destined to fail because of a coolant leak at the speed sensor. According to many accounts the motor will fail and lock up the system. My car has not yet failed but I fear an accident will happen depending on where it falls. My extended warranty from Endurance is no help as they denied coverage for the motor. I have no alternative transportation and am out $17000 on the car. Look up ODI 11490473 at NHTSA ↗	5 ODI 11467661 Glad to have found this group on Facebook: https://www.facebook.com/groups/bclasselectric?sorting_setting=TOP_POSTS Here's my situation with my B-250e 2017 model with 38,000 miles. Bought from a used car dealership in California. Took it to Mercedes-Benz of South Bay. First, they had it for 2 months and could not diagnose the problem with the error messages. This is when it was still drivable. They escalated to MB USA and Germany. Finally, Germany told them what to do to remove the alert and it worked fine. I drove it for 80 miles and now the … Look up ODI 11467661 at NHTSA ↗ ODI 11468355 · 16,000 mi When trying to leave a shopping complex in my Mercedes Benz B250e, the vehicle suddenly just wouldn't move in either drive or reverse. All instruments looked normal, there were no warnings or messages on the console, and the vehicle was fully charged, but the electric motor just would not engage even though the transmission was engaged. The vehicle was towed to the nearness Mercedes Benz dealership in Littleton, where they diagnosed the problem simply as a "failed electric drive". They could offer no explanation as to why the drive failed, b… Look up ODI 11468355 at NHTSA ↗ ODI 11480555 Motor failure after 50K mile. Car can only move and stop - move and stop. Need to replace Electric Engine Motor. Seat belt malfunction after 40K. Look up ODI 11480555 at NHTSA ↗	1 ODI 11547557 At 23,596 total vehicle mileage, the electric drive motor failed while driving. This occurred two days and less than 50 miles after having an annual service performed at an authorized Mercedes Benz dealership. Failure resulted in sudden loss of power alternating with full torque power at any throttle position making the car uncontrollable and hazardous to the occupants and other cars/occupants on the road. No warning indicators, vibrations, or unusual sounds noticed prior to failure. Problem confirmed at the dealership that drive motor had … Look up ODI 11547557 at NHTSA ↗	1 ODI 11480555 Motor failure after 50K mile. Car can only move and stop - move and stop. Need to replace Electric Engine Motor. Seat belt malfunction after 40K. Look up ODI 11480555 at NHTSA ↗	0	0	0
Power Train	5 ODI 11466832 Motor/Drive Unit making "whirring" noise that got progressively worse over time. While under warranty MB dealer stated that everything was fine, now after the warranty has expired a different dealer says it is failing and needs to be replaced. Independent shop says there is a potential design defect with the Tesla motor used in this vehicle (many early model S motors were replaced by tesla.) Look up ODI 11466832 at NHTSA ↗ ODI 11468355 · 16,000 mi When trying to leave a shopping complex in my Mercedes Benz B250e, the vehicle suddenly just wouldn't move in either drive or reverse. All instruments looked normal, there were no warnings or messages on the console, and the vehicle was fully charged, but the electric motor just would not engage even though the transmission was engaged. The vehicle was towed to the nearness Mercedes Benz dealership in Littleton, where they diagnosed the problem simply as a "failed electric drive". They could offer no explanation as to why the drive failed, b… Look up ODI 11468355 at NHTSA ↗ ODI 11490473 The electric motor is destined to fail because of a coolant leak at the speed sensor. According to many accounts the motor will fail and lock up the system. My car has not yet failed but I fear an accident will happen depending on where it falls. My extended warranty from Endurance is no help as they denied coverage for the motor. I have no alternative transportation and am out $17000 on the car. Look up ODI 11490473 at NHTSA ↗	—	3 ODI 11468355 · 16,000 mi When trying to leave a shopping complex in my Mercedes Benz B250e, the vehicle suddenly just wouldn't move in either drive or reverse. All instruments looked normal, there were no warnings or messages on the console, and the vehicle was fully charged, but the electric motor just would not engage even though the transmission was engaged. The vehicle was towed to the nearness Mercedes Benz dealership in Littleton, where they diagnosed the problem simply as a "failed electric drive". They could offer no explanation as to why the drive failed, b… Look up ODI 11468355 at NHTSA ↗ ODI 11633846 On Wednesday [XXX] I was driving my electric vehicle to work. I exited the freeway and as soon as I stopped at the light for the off ramp a warning light indicator appeared stating Coolant Low. I found this odd as I was unaware of Electric Vehicles using Coolant. I clicked the OK button on the steering wheel and the message was acknowledged and disappeared from the screen. When the Light changed to green I proceeded to turn towards my office. At the next traffic light a new message popped up stating see service agent before starting your c… Look up ODI 11633846 at NHTSA ↗ ODI 11705166 In November 2024, the vehicle indicated "add coolant". The vehicle was brought to Mercedes Benz of Scottsdale for servicing. The dealership apparently added coolant without advising me that the B250-E has a 100% chance of failure to the Drive Unit / coolant intrusion unless a small part is replaced before coolant leaks into the inverter/entire engine. A few weeks later - the vehicle, while traveling on a highway, had a complete failure and essentially shutdown on moment's notice. It nearly caused a severe accident. Mercedes Benz USA and the… Look up ODI 11705166 at NHTSA ↗	4 ODI 11465948 I was on a busy street and my car failed to move. I got a message stating do not start the car until you contact the dealer. After getting the car to Mercedes Benz of Arrowhead they told me that "the drive motor is leaking coolant and is shorting itself out." This is an electric car - a 2017 Mercedes Benz B250e. After doing some research I found that this is a common issue with this model and that Mercedes knows about it. Look up ODI 11465948 at NHTSA ↗ ODI 11468727 the electric motor has suffered a coolant leak. this is a known issue in the Mercedes B250e, Rav4 EV, and Tesla Model S. This issue should be recalled and repaired. Look up ODI 11468727 at NHTSA ↗ ODI 11547557 At 23,596 total vehicle mileage, the electric drive motor failed while driving. This occurred two days and less than 50 miles after having an annual service performed at an authorized Mercedes Benz dealership. Failure resulted in sudden loss of power alternating with full torque power at any throttle position making the car uncontrollable and hazardous to the occupants and other cars/occupants on the road. No warning indicators, vibrations, or unusual sounds noticed prior to failure. Problem confirmed at the dealership that drive motor had … Look up ODI 11547557 at NHTSA ↗	0	0	0	0
Electrical System	5 ODI 11467661 Glad to have found this group on Facebook: https://www.facebook.com/groups/bclasselectric?sorting_setting=TOP_POSTS Here's my situation with my B-250e 2017 model with 38,000 miles. Bought from a used car dealership in California. Took it to Mercedes-Benz of South Bay. First, they had it for 2 months and could not diagnose the problem with the error messages. This is when it was still drivable. They escalated to MB USA and Germany. Finally, Germany told them what to do to remove the alert and it worked fine. I drove it for 80 miles and now the … Look up ODI 11467661 at NHTSA ↗ ODI 11468355 · 16,000 mi When trying to leave a shopping complex in my Mercedes Benz B250e, the vehicle suddenly just wouldn't move in either drive or reverse. All instruments looked normal, there were no warnings or messages on the console, and the vehicle was fully charged, but the electric motor just would not engage even though the transmission was engaged. The vehicle was towed to the nearness Mercedes Benz dealership in Littleton, where they diagnosed the problem simply as a "failed electric drive". They could offer no explanation as to why the drive failed, b… Look up ODI 11468355 at NHTSA ↗ ODI 11480555 Motor failure after 50K mile. Car can only move and stop - move and stop. Need to replace Electric Engine Motor. Seat belt malfunction after 40K. Look up ODI 11480555 at NHTSA ↗	3 ODI 11468355 · 16,000 mi When trying to leave a shopping complex in my Mercedes Benz B250e, the vehicle suddenly just wouldn't move in either drive or reverse. All instruments looked normal, there were no warnings or messages on the console, and the vehicle was fully charged, but the electric motor just would not engage even though the transmission was engaged. The vehicle was towed to the nearness Mercedes Benz dealership in Littleton, where they diagnosed the problem simply as a "failed electric drive". They could offer no explanation as to why the drive failed, b… Look up ODI 11468355 at NHTSA ↗ ODI 11633846 On Wednesday [XXX] I was driving my electric vehicle to work. I exited the freeway and as soon as I stopped at the light for the off ramp a warning light indicator appeared stating Coolant Low. I found this odd as I was unaware of Electric Vehicles using Coolant. I clicked the OK button on the steering wheel and the message was acknowledged and disappeared from the screen. When the Light changed to green I proceeded to turn towards my office. At the next traffic light a new message popped up stating see service agent before starting your c… Look up ODI 11633846 at NHTSA ↗ ODI 11705166 In November 2024, the vehicle indicated "add coolant". The vehicle was brought to Mercedes Benz of Scottsdale for servicing. The dealership apparently added coolant without advising me that the B250-E has a 100% chance of failure to the Drive Unit / coolant intrusion unless a small part is replaced before coolant leaks into the inverter/entire engine. A few weeks later - the vehicle, while traveling on a highway, had a complete failure and essentially shutdown on moment's notice. It nearly caused a severe accident. Mercedes Benz USA and the… Look up ODI 11705166 at NHTSA ↗	—	2 ODI 11630844 While driving a notice to park the car and call for maintenance came up then while I was trying to get to safe stopping point the car went on to neutral and shut down while I was at speed. I turned the car back on and moved it to safety and called for roadside assistance Look up ODI 11630844 at NHTSA ↗ ODI 11705166 In November 2024, the vehicle indicated "add coolant". The vehicle was brought to Mercedes Benz of Scottsdale for servicing. The dealership apparently added coolant without advising me that the B250-E has a 100% chance of failure to the Drive Unit / coolant intrusion unless a small part is replaced before coolant leaks into the inverter/entire engine. A few weeks later - the vehicle, while traveling on a highway, had a complete failure and essentially shutdown on moment's notice. It nearly caused a severe accident. Mercedes Benz USA and the… Look up ODI 11705166 at NHTSA ↗	1 ODI 11480555 Motor failure after 50K mile. Car can only move and stop - move and stop. Need to replace Electric Engine Motor. Seat belt malfunction after 40K. Look up ODI 11480555 at NHTSA ↗	1 ODI 11080257 MERCEDES NOTIFIED ME VIA LETTER OF A SAFETY PROBLEM WITH MY LEASED 2016 B250E IN NOVEMBER 2017 BUT SAYS PARTS AREN'T AVAILABLE UNTIL OCTOBER 2018. SO I AM DRIVING AN UNSAFE VEHICLE UNTIL THEN? Look up ODI 11080257 at NHTSA ↗	0	0
Fuel/Propulsion System	1 ODI 11547557 At 23,596 total vehicle mileage, the electric drive motor failed while driving. This occurred two days and less than 50 miles after having an annual service performed at an authorized Mercedes Benz dealership. Failure resulted in sudden loss of power alternating with full torque power at any throttle position making the car uncontrollable and hazardous to the occupants and other cars/occupants on the road. No warning indicators, vibrations, or unusual sounds noticed prior to failure. Problem confirmed at the dealership that drive motor had … Look up ODI 11547557 at NHTSA ↗	4 ODI 11465948 I was on a busy street and my car failed to move. I got a message stating do not start the car until you contact the dealer. After getting the car to Mercedes Benz of Arrowhead they told me that "the drive motor is leaking coolant and is shorting itself out." This is an electric car - a 2017 Mercedes Benz B250e. After doing some research I found that this is a common issue with this model and that Mercedes knows about it. Look up ODI 11465948 at NHTSA ↗ ODI 11468727 the electric motor has suffered a coolant leak. this is a known issue in the Mercedes B250e, Rav4 EV, and Tesla Model S. This issue should be recalled and repaired. Look up ODI 11468727 at NHTSA ↗ ODI 11547557 At 23,596 total vehicle mileage, the electric drive motor failed while driving. This occurred two days and less than 50 miles after having an annual service performed at an authorized Mercedes Benz dealership. Failure resulted in sudden loss of power alternating with full torque power at any throttle position making the car uncontrollable and hazardous to the occupants and other cars/occupants on the road. No warning indicators, vibrations, or unusual sounds noticed prior to failure. Problem confirmed at the dealership that drive motor had … Look up ODI 11547557 at NHTSA ↗	2 ODI 11630844 While driving a notice to park the car and call for maintenance came up then while I was trying to get to safe stopping point the car went on to neutral and shut down while I was at speed. I turned the car back on and moved it to safety and called for roadside assistance Look up ODI 11630844 at NHTSA ↗ ODI 11705166 In November 2024, the vehicle indicated "add coolant". The vehicle was brought to Mercedes Benz of Scottsdale for servicing. The dealership apparently added coolant without advising me that the B250-E has a 100% chance of failure to the Drive Unit / coolant intrusion unless a small part is replaced before coolant leaks into the inverter/entire engine. A few weeks later - the vehicle, while traveling on a highway, had a complete failure and essentially shutdown on moment's notice. It nearly caused a severe accident. Mercedes Benz USA and the… Look up ODI 11705166 at NHTSA ↗	—	0	0	0	0
Seat Belts	1 ODI 11480555 Motor failure after 50K mile. Car can only move and stop - move and stop. Need to replace Electric Engine Motor. Seat belt malfunction after 40K. Look up ODI 11480555 at NHTSA ↗	0	1 ODI 11480555 Motor failure after 50K mile. Car can only move and stop - move and stop. Need to replace Electric Engine Motor. Seat belt malfunction after 40K. Look up ODI 11480555 at NHTSA ↗	0	—	0	1 ODI 11694260 Subject: Urgent Safety Concern – Immediate Attention Required Dear To Whom it may Concern, I am writing to urgently express serious safety concerns with the vehicle I recently [purchased/test drove/had serviced]. Seat Belt Malfunction: The children’s seat belts are not retracting properly, posing a significant safety risk. Braking Issues: Despite being told the brakes are at 90%, they feel like they are grinding metal. This is highly concerning. Alignment Problem: The vehicle is veering aggressively to the right during normal driving, whic… Look up ODI 11694260 at NHTSA ↗	1 ODI 11694260 Subject: Urgent Safety Concern – Immediate Attention Required Dear To Whom it may Concern, I am writing to urgently express serious safety concerns with the vehicle I recently [purchased/test drove/had serviced]. Seat Belt Malfunction: The children’s seat belts are not retracting properly, posing a significant safety risk. Braking Issues: Despite being told the brakes are at 90%, they feel like they are grinding metal. This is highly concerning. Alignment Problem: The vehicle is veering aggressively to the right during normal driving, whic… Look up ODI 11694260 at NHTSA ↗
Air Bags	0	0	1 ODI 11080257 MERCEDES NOTIFIED ME VIA LETTER OF A SAFETY PROBLEM WITH MY LEASED 2016 B250E IN NOVEMBER 2017 BUT SAYS PARTS AREN'T AVAILABLE UNTIL OCTOBER 2018. SO I AM DRIVING AN UNSAFE VEHICLE UNTIL THEN? Look up ODI 11080257 at NHTSA ↗	0	0	—	0	0
Service Brakes	0	0	0	0	1 ODI 11694260 Subject: Urgent Safety Concern – Immediate Attention Required Dear To Whom it may Concern, I am writing to urgently express serious safety concerns with the vehicle I recently [purchased/test drove/had serviced]. Seat Belt Malfunction: The children’s seat belts are not retracting properly, posing a significant safety risk. Braking Issues: Despite being told the brakes are at 90%, they feel like they are grinding metal. This is highly concerning. Alignment Problem: The vehicle is veering aggressively to the right during normal driving, whic… Look up ODI 11694260 at NHTSA ↗	0	—	1 ODI 11694260 Subject: Urgent Safety Concern – Immediate Attention Required Dear To Whom it may Concern, I am writing to urgently express serious safety concerns with the vehicle I recently [purchased/test drove/had serviced]. Seat Belt Malfunction: The children’s seat belts are not retracting properly, posing a significant safety risk. Braking Issues: Despite being told the brakes are at 90%, they feel like they are grinding metal. This is highly concerning. Alignment Problem: The vehicle is veering aggressively to the right during normal driving, whic… Look up ODI 11694260 at NHTSA ↗
Steering	0	0	0	0	1 ODI 11694260 Subject: Urgent Safety Concern – Immediate Attention Required Dear To Whom it may Concern, I am writing to urgently express serious safety concerns with the vehicle I recently [purchased/test drove/had serviced]. Seat Belt Malfunction: The children’s seat belts are not retracting properly, posing a significant safety risk. Braking Issues: Despite being told the brakes are at 90%, they feel like they are grinding metal. This is highly concerning. Alignment Problem: The vehicle is veering aggressively to the right during normal driving, whic… Look up ODI 11694260 at NHTSA ↗	0	1 ODI 11694260 Subject: Urgent Safety Concern – Immediate Attention Required Dear To Whom it may Concern, I am writing to urgently express serious safety concerns with the vehicle I recently [purchased/test drove/had serviced]. Seat Belt Malfunction: The children’s seat belts are not retracting properly, posing a significant safety risk. Braking Issues: Despite being told the brakes are at 90%, they feel like they are grinding metal. This is highly concerning. Alignment Problem: The vehicle is veering aggressively to the right during normal driving, whic… Look up ODI 11694260 at NHTSA ↗	—

Co-reporting does not establish that one component caused another concern.

Recurring narrative patterns

Specific keyword mentions beyond broad component labels. Matching includes negations and comparisons and does not confirm a diagnosis.

Search patterns

3 patterns with matching reports.

Stalling or loss of power

3 mentions · 10.7% of complaints

Median mileage: 72,000 mi (1 usable records).

ODI 11547557

Look up ODI 11547557 at NHTSA ↗

ODI 11553101

Look up ODI 11553101 at NHTSA ↗

ODI 11618068 · 72,000 mi

The contact owns a 2017 Mercedes-Benz B250E. The contact stated while driving approximately 60 MPH, the vehicle the lost automotive power and stalled. The message "Shut Off Immediately" was displayed. The vehicle was later towed to the residence. The cause of the failure was not yet determined. The local dealer was notified of the failure. The manufacturer was not yet contacted. The failure mileage was 72,000.

Look up ODI 11618068 at NHTSA ↗

Matching rule

\b(stall\w*|loss of power|lost power|engine shut\w* off)\b

Warning lights and dashboard alerts

3 mentions · 10.7% of complaints

Median mileage: 31,850 mi (2 usable records).

ODI 11403060 · 36,700 mi

Look up ODI 11403060 at NHTSA ↗

ODI 11585036 · 27,000 mi

Look up ODI 11585036 at NHTSA ↗

ODI 11633846

Look up ODI 11633846 at NHTSA ↗

Matching rule

\b(warning light\w*|check engine|dashboard warning\w*|malfunction indicator)\b

Battery drain and no-start mentions

1 mentions · 3.6% of complaints

Median mileage: Unavailable (0 usable records).

ODI 11467661

Look up ODI 11467661 at NHTSA ↗

Matching rule