2022 Mercedes-Benz GLC 300 Other or unknown Problems
- Complaints
- 7about this part
- Share
- 11%of 61 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 7 complaints about the other or unknown of the 2022 Mercedes-Benz GLC 300, 11% of the 61 complaints for this model year. 2 a fire, according to the filers.
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.
“My vehicle had check engine lights on throughout the last couple of years. Every time I bought it to the dealer, they ignored it and said the light went off. The machine doesn't pick up anything. Now the check engine light is on and the cylinder head and diagnostic head, something is wrong. They will fix the diagnostic head but not the cylinder head. The dealership knew there was ongoing issues but did nothing to correct it. The sales department already screwed me as well. …”
NHTSA complaint #11708865, filed 2026-01“On Saturday 12/6/25, I put my 15 year old cat in his carrier in the back seat and closed the door. I got into my car and opened my garage door. I started my MBGLC300 and began backing my car out of my garage. As soon as the car rear end cleared the garage, I heard an explosion BOOM , and the sound of breaking glass. I pulled back into my garage only to find the entire back window had exploded... all the glass was gone, and the back windshield wiper was dangling out of its housing from the pane (trim). I hit nothing! Nothing hit me! …”
NHTSA complaint #11704230, filed 2025-12“My father was driving home from golf. He was driving for about 5 minutes. He was at a red light and smoke started coming out of the car. He turned car off, then on. Smoke started getting worse. He put on the emergency blinkers, got on the sidewalk, and looked underneath the car. Within a few minutes the car blew up. There were no warning lights and the car was driving normally. Car was brand new and was about 1 year old. 2022 GLC.”
NHTSA complaint #11557307, filed 2023-11Related service bulletins
- 11035780Aug 4, 2026Complaint Mercedes-Benz USA is currently experiencing limited availability of transmission fluid specification ATF 236.17 due to a global supply constraint. 236.17 ATF 1L and 5L…
- 11028809Feb 13, 2026Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the TIREFIT sealant bottle may not meet specifications. The…
- 11027782Jan 21, 2026Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names…
- 10238424Jun 9, 2023In the MBUX weather app, the temperature is displayed in the wrong unit (Fahrenheit instead of °C, or vice versa). Temperature setting in Mmc mobile application settings…
- 10205154Aug 5, 2016Gasket may settle causing a slight oil leak.
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 3 | 19% |
| 2024 | 3 | 14% |
| 2023 | 9 | 16% |
| 2022 | 7 | 11% |
| 2021 | 7 | 10% |
| 2020 | 15 | 22% |
| 2019 | 15 | 32% |
| 2018 | 20 | 23% |
| 2017 | 13 | 13% |
| 2016 | 21 | 16% |
Other parts of the 2022 Mercedes-Benz GLC 300
21 complaintsSteering
14 complaintsElectrical system
12 complaintsEngine
10 complaintsBrakes
4 complaintsTransmission and drivetrain
4 complaintsVehicle speed control
4 complaintsForward collision avoidance
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsAir bags
2 complaintsSuspension
2 complaintsBack-over prevention (rear camera)
1 complaints
← All problems reported for the 2022 Mercedes-Benz GLC 300
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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