2019 Mercedes-benz GLA-Class Complaints

The contact owns a 2019 Mercedes-Benz GLA250. While the contact's wife was driving at an undisclosed speed, the check engine warning light illuminated. In addition, the contact stated that the vehicle was consuming an excessive amount of engine oil. The vehicle was taken to an independent mechanic where it was diagnosed with crankcase vent valve failure and a block actuator. The contact was informed that the crankcase sensor valve needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 43,264.

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.

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.