2017 Mercedes-Benz GLC 300 Engine cooling Problems
- Complaints
- 1about this part
- Share
- 1%of 101 total for the year
- Median mileage
- 88,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine cooling of the 2017 Mercedes-Benz GLC 300, 1% of the 101 complaints for this model year. Where a mileage was given, the median is 88,000 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 2017 Mercedes-Benz GLC300. The contact stated that while driving approximately 55 MPH, she detected white smoke coming from the tailpipes. There were no warning lights illuminated. The contact was able to pull over. The vehicle was towed to the local dealer who placed a camera inside the engine and noticed that the piston had fractured and detached inside the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was contacted but no additional assistance was provided. The approximate failure mileage was 88,000.”
NHTSA complaint #11490203, filed 2022-10, 88,000 milesRelated service bulletins
- 10253722Apr 15, 2024Check engine light illuminated Fault code stored in N3/10 control unit- P052E71 Positive Crankcase Ventilation Regulator Valve Performance: The valve for crankcase ventilation…
- 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…
- 10243308Sep 12, 2023Check engine light illuminated Fault code stored in N3/10 control unit- P052E71 â Positive Crankcase Ventilation Regulator Valve Performance: The valve for crankcase…
- 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…
- 10209874Mar 11, 2022Mercedes-Benz AG (âMBAGâ), the manufacturer of Mercedes-Benz, has determined that on certain MY 2015-2018 C-Class and GLC-Class (205 and 253 platform) vehicles, the software…
- 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
Other parts of the 2017 Mercedes-Benz GLC 300
37 complaintsFuel system
16 complaintsElectrical system
15 complaintsOther or unknown
13 complaintsAir bags
11 complaintsSeat belts
8 complaintsVisibility (wipers, defrost, mirrors)
8 complaintsTransmission and drivetrain
7 complaintsBrakes
4 complaintsForward collision avoidance
4 complaintsSteering
4 complaintsTires
3 complaints
← All problems reported for the 2017 Mercedes-Benz GLC 300
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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