2019 Mercedes-Benz GLA 250 transmission problems

Filed Jan 2, 2026 · Transmission · 39,000 miles · MA

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 the federal safety agency 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.

Filed Dec 29, 2025 · Transmission · 145,495 miles · FL

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 the federal safety agency 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.

Filed Dec 8, 2025 · Transmission · UT

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 the federal safety agency ID: 21V033 Campaign Desc. : Replace Transmission Control Unit 21P5495403 Which is exactly what is happening to my vehicle

Filed Aug 8, 2024 · Transmission · NY

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.

Filed Jun 20, 2024 · Transmission · NY

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.

Filed Mar 14, 2024 · Transmission · 55,000 miles · CA

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 federal safety agency Hotline assistance. The failure mileage was approximately 55,000.

Filed Mar 6, 2024 · Transmission · 45,000 miles · GA

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 federal safety agency Hotline. The contact related the failure to the federal safety agency Campaign Number: 21V033000 (Power Train) however, the VIN was not included in the recall. The failure mileage was approximately 45,000.

Filed Oct 17, 2023 · Transmission · FL

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 the federal safety agency Campaign Number: 21V033000 (Power Train) however, the VIN was not included in the recall. The failure mileage was unknown.

Filed Mar 29, 2023 · Transmission · 50,000 miles · PA

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 federal safety agency 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.

Filed Jan 20, 2022 · Transmission · ME

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.