2018 Mercedes-Benz GLC 350: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
2 owner complaints analyzed
1 distinct recall campaigns
Not available median reported failure mileage
Scope: 2018 model year. Data updated: . 0 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 1 of 2 complaints (50.0%). A complaint can name multiple components.
Recurring terms in complaint narratives
Topic
Matching reports
Share of complaints
Electrical and battery issues
1
50.0%
Fuel system concerns
1
50.0%
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.
Engine
1
Fuel/Propulsion System
1
Component breakdown data
Category
Count
Engine
1
Fuel/Propulsion System
1
Engine: 1; Fuel/Propulsion 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
0
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
0
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: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
No usable failure mileage is recorded. 2 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.
2023
1
2024
1
Complaints over time data
Category
Count
2023
1
2024
1
2023: 1; 2024: 1
Pattern summary
Engine leads the component reports. Electrical and battery issues appears in 1 complaint narratives. Fuel system concerns 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.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
There is a problem with the fuel pressure sensor or wiring to the fuel pump control unit. This causes the fuel bay door to malfunction, meaning sometimes it won't open and sometimes it opens on its own. Today, my local Mercedes dealer (Mercedes of Seattle) quoted $5081.00 to repair this. See attached electronic quote that I rejected and then it disappeared but I saved a screenshot of it. The car has less than 20,000 miles on it. This issue first appeared about a year ago, indicated by a solid yellow warning light (vehicle icon) on the dash…
1 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
21V058000 · Communication: Auto Crash Notification | Electrical System:Software
Reported: 2021-02-05 (February 5, 2021)
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.
Consequence: Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
Remedy: MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021. Owners may contact MBUSA customer service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.
Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.
Data completeness
2 unique complaints in this selection. Analysis snapshot: 2026-10-01.
0.0%Usable mileage0 / 2 records
100.0%Valid incident date2 / 2 records
100.0%Valid filing date2 / 2 records
100.0%Ordered incident and filing dates2 / 2 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
2018
2019
2020
Engine
150.0%ODI 11580321
P052E Error in the control panel appears a light engine
On 2/4/2022 this vehicle was picked up from Rockville Mercedes Dealership Mercedes-Benz of Rockville Centre (Service Center) [phone removed]. The vehicle was brought in for service regarding error lights and service lights. I was driving the vehicle from dealership back to my home and was unable to stop my vehicle and ran a traffic light and crashed into a Northwell Hospital building. The vehicle errored out on the road stating "Vehicle Malfunction" and i was unable to STOP my vehicle. I've contacted Mercedes and the local shop regarding th…
Engine coolant after 2000 miles from topped off by dealership got low and sparked fire, and totaled my car. Warning alert was ON to say turn off engine remove key. Articles related to this: 800,000 Mercedes-Benz Owners Warned Their Cars Could Catch Fire (forbes.com) Daimler warns car owners of fire risk it lacks parts to fix | Reuters 800,000 Mercedes Vehicles Are In Risk Of Catching Fire, But They Don't Have The Parts To Fix It (topspeed.com) Auto manufacturer Daimler advised 800,000 Mercedes-Benz owners that a technical defect could cause …
As I drove the car a warning message popped in the screen stating "Malfunction" without any further details. The car kept running, apparently we'll at first. Then after car was turned off and turned on again the car accelerated by itself proving very dangerous. The day after, le message popped up again, but the car began accelerating by it self in more than three occasions, at one point almost colliding with the car in front. Also a loss of control at certain times during driving was experienced causing impared drivability compromising oc…
Engine coolant after 2000 miles from topped off by dealership got low and sparked fire, and totaled my car. Warning alert was ON to say turn off engine remove key. Articles related to this: 800,000 Mercedes-Benz Owners Warned Their Cars Could Catch Fire (forbes.com) Daimler warns car owners of fire risk it lacks parts to fix | Reuters 800,000 Mercedes Vehicles Are In Risk Of Catching Fire, But They Don't Have The Parts To Fix It (topspeed.com) Auto manufacturer Daimler advised 800,000 Mercedes-Benz owners that a technical defect could cause …
On 2/4/2022 this vehicle was picked up from Rockville Mercedes Dealership Mercedes-Benz of Rockville Centre (Service Center) [phone removed]. The vehicle was brought in for service regarding error lights and service lights. I was driving the vehicle from dealership back to my home and was unable to stop my vehicle and ran a traffic light and crashed into a Northwell Hospital building. The vehicle errored out on the road stating "Vehicle Malfunction" and i was unable to STOP my vehicle. I've contacted Mercedes and the local shop regarding th…
The contact owns a 2019 Mercedes-Benz GLC350. The contact received notification of NHTSA Campaign Number: 22V365000 (Electrical System, Communication) however, the part to do the recall repair was unavailable. The local dealer was contacted, and it was confirmed that the part was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
The contact owns a 2019 Mercedes-Benz GLC350. The contact stated while driving 62 MPH, several unknown warning lights illuminated, and the vehicle started to lose motive power. The contact stated that the temperature gauge warning light was illuminated and a message to “Stop Vehicle Immediately” was displayed. The contact attempted to merge to the side of the road; however, the vehicle started losing motive power. The vehicle was towed to a dealer where it was diagnosed with a warped head gasket. The local dealer was contacted; however, the veh…
There is a problem with the fuel pressure sensor or wiring to the fuel pump control unit. This causes the fuel bay door to malfunction, meaning sometimes it won't open and sometimes it opens on its own. Today, my local Mercedes dealer (Mercedes of Seattle) quoted $5081.00 to repair this. See attached electronic quote that I rejected and then it disappeared but I saved a screenshot of it. The car has less than 20,000 miles on it. This issue first appeared about a year ago, indicated by a solid yellow warning light (vehicle icon) on the dash…
On 2/4/2022 this vehicle was picked up from Rockville Mercedes Dealership Mercedes-Benz of Rockville Centre (Service Center) [phone removed]. The vehicle was brought in for service regarding error lights and service lights. I was driving the vehicle from dealership back to my home and was unable to stop my vehicle and ran a traffic light and crashed into a Northwell Hospital building. The vehicle errored out on the road stating "Vehicle Malfunction" and i was unable to STOP my vehicle. I've contacted Mercedes and the local shop regarding th…
Engine coolant after 2000 miles from topped off by dealership got low and sparked fire, and totaled my car. Warning alert was ON to say turn off engine remove key. Articles related to this: 800,000 Mercedes-Benz Owners Warned Their Cars Could Catch Fire (forbes.com) Daimler warns car owners of fire risk it lacks parts to fix | Reuters 800,000 Mercedes Vehicles Are In Risk Of Catching Fire, But They Don't Have The Parts To Fix It (topspeed.com) Auto manufacturer Daimler advised 800,000 Mercedes-Benz owners that a technical defect could cause …
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
No usable records for this analysis.
Complaint and recall timeline
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.
2019: 0 complaints · 2020: 1 complaints
Equal observation windows
Model year
Through age 0
Through age 1
Through age 2
2019
0
0
0
2020
0
0
1
Date coverage across each selected cohort
Date basis for all complaints in selected model years
Year
Incident dates used
Filing date fallbacks
Excluded dates
2019
5
0
0
2020
1
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
Fuel/Propulsion System
Engine
—
0
Fuel/Propulsion System
0
—
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 · 50.0% of complaints
Median mileage: Unavailable (0 usable records).
ODI 11562425
There is a problem with the fuel pressure sensor or wiring to the fuel pump control unit. This causes the fuel bay door to malfunction, meaning sometimes it won't open and sometimes it opens on its own. Today, my local Mercedes dealer (Mercedes of Seattle) quoted $5081.00 to repair this. See attached electronic quote that I rejected and then it disappeared but I saved a screenshot of it. The car has less than 20,000 miles on it. This issue first appeared about a year ago, indicated by a solid yellow warning light (vehicle icon) on the dash…