2021 Mercedes-Benz GLC 300 Body and structure Problems
- Complaints
- 3about this part
- Share
- 4%of 67 total for the year
- Median mileage
- 10miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the body and structure of the 2021 Mercedes-Benz GLC 300, 4% of the 67 complaints for this model year. Where a mileage was given, the median is 10 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.
“I have purchased the 2021 Mercedes-Benz glc 300 4matic coupe and noticed a design flaw on the car. As you can see in the attached picture, the front bumper provides no protection to the radiator. It has already started chipping due to the rock damage. This can leave the car impaired on the freeway which can be dangerous. I did contact the dealer and they said there is nothing they can do.”
NHTSA complaint #11399796, filed 2021-03, 10 miles“Sunroof glass panel exploded outward. Fabric retractable interior sunroof liner did contain all of the fragmented safety glass. No prior impact on or to the sunroof. If the interior fabric sunroof liner had been retracted, the interior of the vehicle would have been showered with the glass shards impacting the driver and all passengers. There was no warning. A loud sound similar to gunshot occurred as the sunroof failed. The vehicle was driven to a local windshield repair facility for examination. I contacted and notified Mercedes Benz USA of the incident. …”
NHTSA complaint #11466660, filed 2022-05Related service bulletins
- 11038217Sep 14, 2026Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise…
- 11036511Aug 24, 2026Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. EXAMPLE: when stored in trouser pocket…
- 11036101Aug 6, 2026Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise…
- 11033050May 22, 2026Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline…
- 11030295Mar 26, 2026Complaint The "easy entry and exit feature" function deactivates itself after a brief period. (see attachment) Cause The cause is currently being investigated. Remedy Update the…
- 11018703May 29, 2025Complaint Load compartment cover generates a creaking noise during driving when pulled out to covering position. Cause Aluminum cassette scrapes on the inside of the end cap. The…
- 11013192Jan 24, 2025Complaint Fuel door may require several attempts to open. Please note that if the complaint "Fuel filler flap not opening" occurs, it is important to check the fuel filler flap…
- 11013184Jan 24, 2025Complaint Noise from area of instrument panel Noise might occur in the following conditions: - At engine speeds of 1500 rpm to 2000 rpm. - In the speed range up to 45mph - Type…
- 11013336Jan 23, 2025Complaint Sliding sunroof panel of panoramic sliding sunroof reverses (temporarily, once, multiple times) during closing process without entrapment event: a) from tilt position…
- 11010644Nov 16, 2024Complaint Paint damage on door paneling in area of door handle (see picture 1). Cause Possible tolerance complaint regarding the door handle Remedy 1. Paint the affected area of…
Body and structure: other model years
Other parts of the 2021 Mercedes-Benz GLC 300
30 complaintsExterior lighting
13 complaintsFuel system
12 complaintsElectrical system
8 complaintsOther or unknown
7 complaintsTransmission and drivetrain
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsBack-over prevention (rear camera)
3 complaintsForward collision avoidance
3 complaintsLane departure
2 complaintsVehicle speed control
2 complaintsAir bags
1 complaints
← All problems reported for the 2021 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