MERCEDES-BENZ Complaints

THere is a global recall of the 2023 EQB 250 vehicle due to an unfixed battery issue. (It is the second recall for the same issue fur my vehicle). However, the manufacturer has not sent me any warning about the latest battery recall (critical risk of fire). The dealer is only engaging over voice calls and refusing to put any acknowledgement of the recall or the risk in writing. There is no remedy in sight, and they are unable to exchange the impacted battery either. The utility of vehicle has decreased significantly, and is a real risk for people like me living in a high-fire-hazard zone (Oakland Hills, with history of the entire neighborhood burning down)

Corrosion of the fuel system (on a Flex Fuel rated vehicle that had used E85 blend regularly) causing sudden loss of power, misfires, lack of acceleration The vehicle experience sudden loss of power, multiple misfires, and potential damage to the engine. Had the vehicle been on the highway or attempting to merge with traffic this could have resulted in an accident See attached dealer diagnosis and replacement of multiple fuel injectors, fuel pump, and fuel rail. The dealer service manager stated (but did not document) that this was probably caused by using E85, despite the fact that the vehicle is rated for E85/flex fuel There were no warnings or indications prior to the incident

I pulled into a parking space, cars on each side of me and car in front of me had pulled through the space to park. As I eased into the space, foot on brake, the car violently shook and surged forward, smashing into the rear of the car in front of me. The car continued to shake then moved to the left and crashed into the car in front of me to the left. The car that I hit in the rear was pushed into a car passing by them. So 4 cars involved due to this major malfunction. When the car stopped, I was able to put it in reverse and back up. I could not have done what happened on own. I had no control over the vehicle. Brakes were mush. My Mercedes also has a safety feature where if I get too close to a car, it will brake on its own. Red & yellow lights were flashing, the car shook during the entire event until it came to a stop. My insurance carrier, State Farm, had the car towed to the Mercedes dealership. The service technician saw no codes, therefore, they say nothing is wrong with the car. I know that cars do not always throw codes. I googled what my car did and it is a thing. The article gives suggestions as to what can be checked, but Mercedes refuses to check anything since no codes were there. State Farm asked to me ask for the black box info (Event Data Recorder), however, Mercedes refuses. The car is unsafe to drive. If it happened once, it will absolutely happen again. State Farm is having the car towed to a different body shop today, as Mercedes body shop is price gouging. I do not want to drive the car until they find out what happened and they keep telling me there's nothing wrong with the car. It is a safety hazard. Next time it happens, it could be a person in front, rather than a car. Can you help me? Photos show skid marks where the brakes were useless.

I purchased a brand new GLC 300 on May 25, 2023. By June 2, 2023 I was already stranded due to a 12V battery electrical system failure. Since then I have been stranded 8 total times and the vehicle has been in the service department 14+ times for repeated electrical issues (8 of those visits were related to the same 12V battery electrical system failures. The battery was reportedly replaced in 2024-shortly thereafter I began experiencing issues with the collision assist malfunctioning. The alarms would sound seat belt tighten and brakes lock up while driving on the interstate. The theft deterrent alarm wound sound in the middle of the night without provocation. The panoramic roof would malfunction. The air vent disintegrated. In August 2025, the collision assist malfunctioned causing the vehicle to steer off the road resulting in a blow out. It has not been driven since.

The contact owns a 2007 Mercedes-Benz C230. The contact stated while driving in a storm, the windshield cracked. The taillight and indicator lights were inoperable. There was an abnormal tapping sound coming from the vehicle. The vehicle was taken to the local dealer, who confirmed there was no failure with the sunroof. The vehicle was repaired. After retrieving the vehicle, the vehicle failed to start while the temperature was 20 degrees. The vehicle was towed to the local dealer by AAA. The tow truck driver jump-started the vehicle and closed the sunroof. The dealer informed the contact that the sunroof was leaking, the battery needed to be replaced, and the solenoid was inoperable. The vehicle was not repaired. Additionally, the remote was inoperable. The passenger’s side mirror light was inoperable. The manufacturer was contacted and opened a case. The failure mileage was approximately 99,000.

The contact owns a 2017 Mercedes-Benz E400 Coupe. The contact stated that the silver metal coating on the seat release lever was rough and jagged on both driver and passenger sides of the two door vehicle. The contact's son had grabbed the front seat release lever to access the rear passenger’s side seat and cut his hand. The cut was approximately 2-3 inches long. No medical attention was needed. The vehicle was taken to the dealer, and the contact was informed that the failure was common with the vehicle and that the coating was known to peel due to heat. The contact was concerned that the failure occurred as his vehicle was stored in the garage and sustained less heat exposure due to its maintenance/care. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for assistance. The approximate failure mileage was 42,000.

The contact's wife owns a 2018 Mercedes-Benz C300. The contact stated that while washing the vehicle, a part of the panoramic roof started moving while depressing the glass. The contact stated that there was water leaking into the vehicle from the glass. Upon investigation, the contact discovered NHTSA Campaign Number: 23V854000 (Structure); however, the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was filed. The manufacturer confirmed that the VIN was not included in the recall. The contact was then referred to the NHTSA Hotline to report the failure. The failure mileage was unknown.

The contact owns a 2015 Mercedes-Benz C300. While driving approximately 15 MPH, the brake pedal was depressed, and the body of the vehicle shifted to one side. The vehicle was drivable after the failure. There was no warning light illuminated. The vehicle was driven to the residence and parked. The contact stated that due to the failure, the vehicle was unsafe to drive. An independent mechanic was contacted, and it was determined that the rear subframe was corroded. The vehicle was not repaired. The manufacturer was notified of the failure, and it was confirmed that the VIN was not under recall. The failure mileage was not available.

The contact owns a 2011 Mercedes-Benz ML350. While the daughter was driving at an unknown speed, several unknown warning lights illuminated on the instrument cluster. The driver heard an abnormal hissing or squeaking sound while depressing the brake pedal. The vehicle was driven back to the residence. The contact’s son then drove the vehicle to a shopping center, and when the brake pedal was depressed, the brake warning light illuminated, and the vehicle unexpectedly entered SAFE Mode. The contact was unable to shift to drive(D). The brake pedal was depressed and went to the floorboard. The vehicle was towed to a dealer. The vehicle was not yet diagnosed or repaired. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic). The contact stated that the dealer had inspected the brake booster, but no parts were replaced. The contact related the brake failure to the recall. The manufacturer was informed of the failure. The failure mileage was approximately 111,000.

Signs of arcing on high voltage charge port. The issue was first identified and reported to an authorized Mercedes-Benz dealership (Pleasanton, CA) at approximately 41,000 miles. Despite the safety implications, the dealership chose not to perform a repair has denied warranty coverage, claiming Electrify America charging station for the caused.