2019 Mercedes-Benz GLC 350 Engine cooling Problems
- Complaints
- 1about this part
- Share
- 17%of 6 total for the year
- Median mileage
- 63,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine cooling of the 2019 Mercedes-Benz GLC 350, 17% of the 6 complaints for this model year. Where a mileage was given, the median is 63,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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 vehicle was not repaired. …”
NHTSA complaint #11646016, filed 2025-03, 63,000 milesRelated service bulletins
- 10243565Sep 22, 2023In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA (âMBUSAâ) is…
- 10241531Aug 24, 2023In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (âMBUSAâ) is…
- 10206077Dec 8, 2021"MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 â Boost Pressure is Too High"" "
- 10202530May 25, 2021Remote start causing CEL and U012600.
- 10205154Aug 5, 2016Gasket may settle causing a slight oil leak.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2019 | 1 | 17% |
Other parts of the 2019 Mercedes-Benz GLC 350
3 complaintsOther or unknown
3 complaintsElectrical system
2 complaintsVehicle speed control
2 complaintsBrakes
1 complaints
← All problems reported for the 2019 Mercedes-Benz GLC 350
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology