2018 Mercedes-Benz GLC 300 Body and structure Problems
- Complaints
- 9about this part
- Share
- 10%of 87 total for the year
- Median mileage
- 16,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 9 complaints about the body and structure of the 2018 Mercedes-Benz GLC 300, 10% of the 87 complaints for this model year. Where a mileage was given, the median is 16,000 miles. 1 of these say a crash was involved and 1 a fire, according to the filers. 2 recall campaigns on record are filed under a similar system.
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 steering column stalk controls drive, reverse, neutral and parking. I stopped the vehicle on an incline in a parking lot. I had my foot on the brake. I shifted into neutral. The engine was still running. I thought I pushed the park button but the car rolled back into another vehicle.”
NHTSA complaint #11144554, filed 2018-10, 3,200 miles“While driving on interstate 4 in Florida with our grandchildren going approximately 70 mph the sunroof on our 2018 Mercedes GLC just exploded no object came into the vehicle and while glass came into the vehiclenot all the glass that made up the sunroof came into vehicle suggesting a pressure issue as apparently blew out”
NHTSA complaint #11723228, filed 2026-03“The contact owns a 2018 Mercedes-Benz GLC300. The contact stated while stopped in a parking lot, she raised the automatic liftgate, as she helped her husband load his walker into the rear cargo area of the vehicle, and the tailgate independently closed with force. The contact stated that both her husband and herself were struck on the top of the head by the liftgate. The contact stated that there was a pain but no physical injury was sustained. The contact stated that the failure had become constant and she no longer operated the liftgate. …”
NHTSA complaint #11486081, filed 2022-09, 35,000 miles“The contact owns a 2018 Mercedes-Benz GLC300. The contact stated while driving 60 MPH, the exterior panel between the windshield and sunroof detached, creating a hazardous road debris. The vehicle was taken to the dealer, who diagnosed a failure with the exterior panel adhesive bonding agent. The vehicle was not repaired. After investigating the failure, the contact related it to NHTSA Campaign Number: 21V197000 (Structure) and 17V715000 (Visibility), but the VIN was not included. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 51,000.”
NHTSA complaint #11551023, filed 2023-10, 51,000 miles“The contact owned a 2018 Mercedes-Benz GLC300. While driving 55 MPH, the rear driver's side tire was punctured. The contact stated that the vehicle was equipped with 18 inch run flat tires. The contact pulled the vehicle over to the side of the road. After waiting approximately 70 minutes on the side of the road, the tire burst into flames. The contact was unable to provide the tire manufacturer, tire line, complete tire size, or DOT number. The contact stated that the fire originated in the wheel well of the vehicle and was not necessarily caused by the tire puncture. …”
NHTSA complaint #11094094, filed 2018-05, 1,110 milesRelated recalls
- 23V854000Dec 15, 2023Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2014-2020 C-Class, CLA, GLA, S-Class, GLC, and GLE vehicles. Please refer to MBUSA's recall report for…Covers: Mercedes-Benz GLC 300 2016–2020, CLA250 2014–2019, C300 2015–2020 +19 more
- 21V197000Mar 19, 2021Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2020 C300 Coupe, C43 Coupe AMG, C43 AMG, 2015-2020 C300, GLA250, 2016-2018 C350e, CLA45 Coupe AMG…Covers: Mercedes-Benz GLC 300 2016–2020, AMG S63 2014–2020, CLA250 2014–2019 +19 more
Related 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…
- 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…
- 11015566Mar 11, 2025Complaint 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…
- 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…
- 11013185Jan 24, 2025Complaint Paint damage on door paneling in area of door handle (see picture 1). Cause Alignment of door handle bearing bracket is not correct. Remedy 1. Paint the affected area…
- 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…
- 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 2018 Mercedes-Benz GLC 300
28 complaintsOther or unknown
20 complaintsElectrical system
13 complaintsSeat belts
8 complaintsTransmission and drivetrain
8 complaintsFuel system
7 complaintsAir bags
6 complaintsBrakes
5 complaintsForward collision avoidance
3 complaintsSteering
3 complaintsVehicle speed control
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaints
← All problems reported for the 2018 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