2019 MERCEDES BENZ GLA 250 Power Train Problems

The contact owns a 2019 Mercedes-Benz GLA 250. The contact stated that while driving at an undisclosed speed, the transmission inadvertently shifted to neutral(N), causing a loss of drive power. The check engine warning light was illuminated, and the message "See Dealer" was displayed. The vehicle was restarted and driven to the residence. The vehicle was not yet diagnosed or repaired by an independent mechanic or dealer. The contact related the failure to NHTSA Campaign Number: 21V033000 (Power Train); however, the VIN was not included in the recall. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 39,000.

Mileage: 39,000

The contact owns a 2019 Mercedes-Benz GLA250. The contact stated that while driving at approximately 70 MPH, several unknown warnings illuminated on the instrument cluster. The contact stated that upon depressing the accelerator pedal, the vehicle failed to respond while the engine revved. The contact pulled over to the side of the road and turned the vehicle off. Upon restarting the vehicle, no warning light was illuminated. The contact was able to drive to the destination without further incidents. The contact stated that the vehicle had been experiencing the failure intermittently. The contact had taken the vehicle to a local dealer, where it was diagnosed, and determined that the spark plugs and coils needed to be replaced. The vehicle was not repaired. The contact had called an independent mechanic, who advised that the failure was related to the transmission. Upon researching online, the contact related the failure to NHTSA Campaign Number: 21V033000 (Power Train); however, the VIN was not included. The manufacturer was informed of the failure and referred the contact back to the dealer for assistance. The failure mileage was 145,495.

Mileage: 145,495

I was driving my vehicle and it shifted into neutral and would not go back into gear until I pulled over to side of the road, turned it off and back on. A check engine light came on when I restarted the vehicle and I took the vehicle to the dealership for diagnosis. They told me they couldn't find an issue and reset the check engine light. A week later, I was driving on the freeway and it shifted into neutral again at 70 miles an hour. Luckily, I was in the right hand lane and was able to coast to the side. At that point I started looking online to see if others had this issue and came across this: Campaign No. : 2021020038 NHTSA ID: 21V033 Campaign Desc. : Replace Transmission Control Unit 21P5495403 Which is exactly what is happening to my vehicle

In December 2023, the check engine light came on. The dealership said it was the rear differential. The dealership fixed the problem under warranty. In July 2024, the problem returned. The dealership said it could repeat the procedure from December, but that eventually the rear differential will need to be replaced. The dealership said that only replacing the rear differential will fix the problem for good. Obviously, MB recognized the problem and upgraded the software and whatever else was wrong with the current rear differential. The car is now out of warranty. Clearly, MB knew of the problem and chose to direct it's dealerships to use stop-gap measures that do not fix the problem, until the rear differential must be replaced, at the owner's expense, with an upgraded rear differential. It is dangerous to drive the vehicle with a faulty rear differential.

Noise in rear differential, had dealership where I purchased vehicle flush & change the fluid in rear differential. Tech stated it will need to be replaced. Vehicle has 75,000. Research has numerous problems with this issue.

The contact owns a 2019 Mercedes-Benz GLA250. The contact stated that while the vehicle was at the dealer for a routine oil change, the contact was informed that the differential was fractured. The dealer provided a cost for the repair however, the vehicle was not repaired. The vehicle was taken to a used car dealer and to an independent mechanic, where the same assessment was made. The vehicle was not repaired. The contact was referred to the manufacturer for assistance in repairing the vehicle. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline assistance. The failure mileage was approximately 55,000.

Mileage: 55,000

The contact owns a 2019 Mercedes-Benz GLA250. The contact stated that while driving at an undisclosed speed, the transmission inadvertently shifted into neutral(N). No warning light was illuminated. The vehicle was taken to the dealer; however, the dealer was unable to duplicate the failure. The failure recurred. The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to file a complaint with the NHTSA Hotline. The contact related the failure to NHTSA Campaign Number: 21V033000 (Power Train) however, the VIN was not included in the recall. The failure mileage was approximately 45,000.

Mileage: 45,000

The contact owns a 2019 Mercedes-Benz GLA250. The contact stated that while his wife was driving 25 MPH, the transmission inadvertently shifted into neutral(N). The Reverse Inoperative message was displayed. The contact's wife turned off and restarted the vehicle before driving to the residence. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure but informed the contact that there was no recall associated with the VIN. The contact related the failure to NHTSA Campaign Number: 21V033000 (Power Train) however, the VIN was not included in the recall. The failure mileage was unknown.

The contact owns a 2019 Mercedes-Benz GLA250. The contact stated that while his son was driving approximately 55 MPH, the transmission erroneously shifted to neutral causing the vehicle to lose motive power and stall. Moments later the vehicle was restarted, and the vehicle operated normally. The vehicle was later towed to the local dealer. The cause of the failure was not yet determined. The manufacturer was notified of the failure and informed that the VIN was not included in the NHTSA Campaign Number: 21V033000 (Power Train). The contact stated that the vehicle had experienced the failure listed in the recall. The VIN was not available. The failure mileage was 50,000. The contact stated that the vehicle shifts into neutral at highway speeds and it shows a transmission error.

Mileage: 50,000

While driving at various speeds, my car suddenly and without warning goes into neutral. I have to them switch it into drive. It happens several times during a drive and at varying times and varying speeds.

The vehicle with only 29,775 miles on it, and I bought it new, made a knocking noise in the brakes and the brake pedal jumped up and down at first stop sign when I left my house. I reapplied the brake to see if it would work. It did. I turned onto the highway and within two blocks the vehicle shifted itself into N, a message on dashboard said pull over, contact service immediately. I was able to coast then turn onto a side street. Upon stopping the vehicle, another warning came on the dashboard: Reversing Not Possible Service Required. This vehicle has had quirky electrical problems from the beginning. I have reported to the dealership at least 3-4 times. I believe this could have been a very dangerous situation for me and my family if I was on an Interstate. I have no confidence in this vehicle now.

TL* THE CONTACT WAS LEASING THE 2019 MERCEDES BENZ GLA250. THE CONTACT STATED THAT WHILE STOPPED SHE ATTEMPTED TO SHIFT TO PARK HOWEVER, THE VEHICLE SHIFTED INTO REVERSE AS SHE CRASHED INTO AN UNKNOWN OBJECT. THE CONTACT STATED THAT THE VEHICLE THEN WENT INTO DRIVE AT CRASHED INTO A TRUCK. THE SIDE AIR BAGS DEPLOYED BUT NOT THE AIR BAG IN THE STEERING WHEEL. THE CONTACT SUSTAINED BRUISING TO THE CHEST THAT REQUIRED MEDICAL ATTENTION. THE CONTACT STATED THAT THE FIRE DEPARTMENT ARRIVED FIRST AND A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO A POLICE TOW LOT AND THEN TOWED TO AN INSURANCE LOT WHERE THE INSURANCE COMPANY DEEMED THE VEHICLE AS TOTAL LOSS. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 11,000.

Mileage: 11,000