The contact owns a 2021 Mercedes-Benz GLC300. The contact stated that while his wife was driving in the rain approximately 35 MPH, the vehicle lost motive power and stalled. The vehicle was able to be restarted. The vehicle was taken to a dealer to be diagnosed. The contact was informed that the cylinder head needed to be replaced. The vehicle was repaired but the failure reoccurred. The contact believed that the failure was associated with NHTSA Campaign Number: 23V445000 (Fuel System, Gasoline) however, the VIN was not included. The manufacturer was notified of the failure. The failure mileage was 19,369.

Source: NHTSA complaint ODI #11567062 · view all complaints for this vehicle at nhtsa.gov

Vehicle left/front headlight has water condensation and entire headlight doesn't work. Its pretty much not drivable. I brought the vehicle to a manufacturer dealership and they claim that the failure of the headlight is due to physical impact to the exterior of head light. There is a minor scratch barely visible and no cracks or physical damage to the headlight or seal, or car or that matter. When I asked if they performed an inspection due to a recall associated with the headlight (recall # 2022050005), they confirmed that they did not inspect for this issue since my VIN # didn't reflect this recall. They said since the recall wasn't associated with this VIN that the manufacturer would not cover as part of warranty and gave me an estimate of nearly $4,000. It seems very coincidental that my car is experiencing the same issue as noted on the recall report but because there is a small scratch in the headlight, the manufacturer dealership will not be able to move forward with a warranty claim even though they didn't fully inspect the issue based on the recall. In addition, my car was having notifications go off for the right/front headlight and there are NO scratches. Still no inspection was made. I was told by Mercedes Corp Customer Care to report this so my VIN can be associated with the recall. PLEASE HELP!!!

Source: NHTSA complaint ODI #11567054 · view all complaints for this vehicle at nhtsa.gov

Vehicle will flash warnings on dash the the blind spot assist in inoperative and the front passenger air bag malfunction. The active brake assist is also malfunctioning as the two white cars colliding is on. The dealership as tried to fix this issue 5 times and has tried argue the the active brake assist is functioning normal.

Source: NHTSA complaint ODI #11499353 · view all complaints for this vehicle at nhtsa.gov

My sunroof exploded while I was driving on the highway. There were no other cars around me and no overpasses. There is no explanation for the sunroof breaking. I thought someone shot out my window. It was the scariest experience I have ever had driving. If there were cars around, it might have caused a major accident.

Source: NHTSA complaint ODI #11502302 · view all complaints for this vehicle at nhtsa.gov

The HVAC system has a very had odor that could impact our respiratory health, and giving us headaches when we drive. I wanted to share with you my current situation that I believe relates to the Mercedes HVAC Class Action Settlement (https://www.mercedeshvacsettlement.com/). My 2021 GLC300 Mercedes is experiencing exact same issues as described in the Mercedes HVAC Class Action Settlement even though the settlement only covers vehicle models up to 2019. I have been a loyal Mercedes customer for over 20 years and took in the vehicle 4 times to address the bad HVAC odor that occurs 3 to 4 times a day when I turn on the HVAC. It has a moldy, mildew-y, or similar odor emanating from the vehicle’s HVAC system. The dealership admitted they did smell the odor but there is nothing they can do to address it after they changed the air filters and cleaned the evaporator coil. I then escalated to MBUSA Escalation team to request a full refund or replacement based on the Arizona Lemon Law statute and they were of no assistance and completely denied my request stating that the vehicle is working as intended. I even went to a Lemon Law attorney and provided them all the 4 service documentation records showing that I took the vehicle in 4 times and evidence from dealership admitting that there is an odor from the HVAC for the same issue with no root cause or resolution to address the odor from the HVAC. The attorney passed on taking my case, which I believe is a good solid case. Do you have any further ideas on what I can do start a class action lawsuit against Mercedes or investigate extending Mercedes HVAC Class Action Case 1:17-cv-01701-AT to include vehicle models beyond year, 2019? Based on my observation this is still happening in Mercedes vehicle models 2020 and newer.

Source: NHTSA complaint ODI #11485054 · view all complaints for this vehicle at nhtsa.gov