2014 Mercedes-Benz B 250E problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
1 owner complaints analyzed
3 distinct recall campaigns
36,700 mi median reported failure mileage
Scope: 2014 model year. Data updated: . 1 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
Electrical System is the most frequently named component, appearing in 1 of 1 complaints (100.0%). A complaint can name multiple components.
Recurring terms in complaint narratives
Topic
Matching reports
Share of complaints
Electrical and battery issues
1
100.0%
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.
Electrical System
1
Component breakdown data
Category
Count
Electrical System
1
Electrical System: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
Under 25,000
0
25,000 to 49,999
1
50,000 to 74,999
0
75,000 to 99,999
0
100,000 to 149,999
0
150,000 and above
0
Reported problems by failure mileage data
Category
Count
Under 25,000
0
25,000 to 49,999
1
50,000 to 74,999
0
75,000 to 99,999
0
100,000 to 149,999
0
150,000 and above
0
Under 25,000: 0; 25,000 to 49,999: 1; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
25,000 to 49,999 miles has the most reports with usable mileage (1). 0 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.
2021
1
Complaints over time data
Category
Count
2021
1
2021: 1
Pattern summary
Electrical System leads the component reports. Electrical and battery issues appears in 1 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.
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…
Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.
Data completeness
1 unique complaints in this selection. Analysis snapshot: 2026-10-01.
100.0%Usable mileage1 / 1 records
100.0%Valid incident date1 / 1 records
100.0%Valid filing date1 / 1 records
100.0%Ordered incident and filing dates1 / 1 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.
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.)
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.
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.)
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.
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…
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?
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 …
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.
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…
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?
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…
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.
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…
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
Electrical System
Too few reports for a range
36,700 mi
1 (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…
Explore monthly filing activity alongside recall announcements. Up to ten years of monthly history is available.
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
0
None
No examples available for this selection.
2024-12
0
None
No examples available for this selection.
2025-01
0
None
No examples available for this selection.
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
0
None
No examples available for this selection.
2025-10
0
None
No examples available for this selection.
2025-11
0
None
No examples available for this selection.
2025-12
0
None
No examples available for this selection.
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.
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
Electrical System
Electrical System
—
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.
1 patterns with matching reports.
Warning lights and dashboard alerts
1 mentions · 100.0% of complaints
Median mileage: 36,700 mi (1 usable records).
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…