2022 Mercedes-Benz GLC-Class Complaint Log

Since I purchased this vehicle 2.5 months ago, the windshield wipers started chattering/making noise and not working properly after about 2 days. I brought the car in and the dealership replaced the wipers. The chattering started again shortly after, then the dealership polished the windshield. It worked well for about 2-3 weeks and now the wipers are starting to streak and chatter again. I have a third appointment to have the windshield re-polished and wipers replaced, again. I have no faith this will fix the issue since its been done before. I see that this is a common issue with this brand/model.

Steering wheel vibrates uncomfortably and appears to lose steering effectiveness when the car goes over road irregularities when driving at moderate to high speeds. Irregularities experienced include driving over cross joints, bumps or dips on the road, and poorly repaired road surfaces. The sensation is disturbing and feels unsafe. The vibrations last for a few seconds each time. There are no warning signs or signals while this is happening. The vehicle is less than a year old and it has been doing this for a few months now. First time I felt this issue the car had approximately 3,100 miles. I made an appointment to take it to the dealership for it’s first 10,000 mile maintenance and will request to have this issue inspected.

There is a significant steering vibration as the front wheel drops in a common pothole turning at speeds above 30 mph. There is a loss of control as if the wheel is skipping. It feels like the shock absorber continues to vibrate for a few seconds. I did mention this to Mercedes-Benz during the annual maintenance service but they did not do anything.

The contact owns a 2022 Mercedes-Benz GLC300. The contact stated that while driving at various speeds and depressing the accelerator pedal, the check engine warning light was displayed on the instrument panel. The vehicle lost power and was pulled over and restarted. The contact was almost involved in several crashes due to the failure. The vehicle was included in NHTSA Campaign Number: 23V445000 (Fuel System, Gasoline); however, the vehicle was repaired, and the failure persisted. The vehicle was taken to the dealer on several occasions, where the fuel pump, charcoal filter, and other various parts of the fuel pump were repaired; however, the failure persisted. The manufacturer was notified of the failure, and the contact was informed that the cylinder head would be replaced free of charge. The contact believed that the vehicle was unsafe to drive due to the failures. The vehicle was not repaired, and a loaner vehicle was provided. The failure mileage was unknown.

Vehicle vibrates quite violently when hit some potholes. Steering wheel is the part that vibrates more but vibration is felt throughout the vehicle. It is more prevalent at highway between 55-65 mph speed. I also noticed that car shakes unusually and tilts to one side at times making it quite uncomfortable for driver. back tires make slipping noice on potholes and feels like car is going to be unstable momentarily . All these issues are putting driver and others at risk. I joined Facebook page of glc300 owners and almost everyone reported this kind of problem. For most of the people including me , it is still unresolved . I took my vehicle to dealer and they updated software but issue still persists.

Temporary vibrations (LONG LASTING) noticeable on steering wheel when front axle excited when driving over road irregularities at a speed between 45 mph and 90 mph (70 km/h and 150 km/h). Excitation examples: • Driving over deeply recessed manhole covers • Driving over cross joints • Driving over extreme surface undulations

The contact owns a 2022 Mercedes-Benz GLC300. The contact stated while driving over 50 MPH, the steering wheel was vibrating. The vehicle was taken to the local dealer who was unable to duplicate the failure. The contact continued to experience the failure. The contact took the vehicle back to the local dealer and was informed that the vehicle was repaired under an unknown manufacturer recall and the steering wheel bracket was replaced, and the steering wheel software was updated. The vehicle was repaired but continued to experience the failure. The vehicle was taken back to the dealer however, the dealer was unable to duplicate the failure. The contact continued to experience the failure. The contact took the vehicle back a fourth time, but the dealer was unable to duplicate the failure. The contact continued to experience the failure and the vehicle was taken back to the dealer however, the dealer was unable to duplicate the failure. The vehicle was taken to a second dealer, Mercedes-Benz of Rockville Centre (110 W Graham Ave, Hempstead, NY 11550, (516) 766-6900), but the dealer was unable to duplicate the failure. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was 5,742.

The contact owns a 2022 Mercedes-Benz GLC300. The contact stated that after parking the vehicle, the moon roof and windows independently rolled down. The contact was able to roll the windows up. The contact stated that two days later the radio independently turned on while the vehicle was still turned off. The contact was able to turn off the radio. The GPS and Bluetooth connection also malfunctioned. The dealer performed a software update however, the failure recurred. The manufacturer was made aware of the failure. The approximate failure mileage was 925.

The contact owns a 2022 Mercedes-Benz GLC300. The contact stated while driving 65 MPH, the Distance Assist Distronic engaged and the vehicle slowed down abruptly. The contact immediately disengaged the Distance Assist Distronic and resumed driving. The vehicle was taken to an unknown dealer where he was informed that the vehicle operated as designed. The dealer disabled the Distance Assist Distronic; however, the system reengaged while driving. The vehicle was taken to a second dealer who disabled the feature; however, the failure recurred while driving. The manufacturer was notified of the failure and a case was opened. The vehicle was not diagnosed or repaired. The failure mileage was approximately 1,500.

I purchased my car 2022 Merced-Benz GLC 300 from Park Place Motorscar in Arlington Texas on February 17, 2022, and have issues with the steering wheel shaking when I drive over bumps. I have raised the problem with the dealership service department and they have not fixed it after 3 attempts. This is a safety issue and I am very concerned.

Driving on uneven surfaces the steering wheel start shaking and vibrating including the car body.

When driving at 40 to 60 MPH and hit shallow pot hole or bump in the road the front wheels violently shake and the steering wheel (electric steering) violently vibrates for 5 to 8 seconds. Dealer checked the vehicle and claims there is nothing wrong with it but did turn off the "attention assist" setting from sensitive setting claiming it was the cause. The issue still exists but not as violent. I'm concerned of loosing control of the car/my safety. FYI: never experienced this issue with my previous car (same car two years older ,2020 GLC 300).