What 29 owners told NHTSA about the 2019 Mercedes-benz Gla-class

The ABS Sensor light, engine light, anti skid light and 4 matic malfunction, transmission malfunction all lit up on my dashboard on Tuesday July 22, 2025. The stearing would lock up and the brakes would not break it also shifted gears into neutral. The dashboard finally told me in bold red letters (transmission malfunction STOP). It would do this then all the lights would go away. I thought it may have just been the battery since I hardly drive the car. The shop cleared out all the malfunctions and re drove it and they said it appeared fine but the next day (Wednesday) it acted up again and that is when I got the transmission malfunction STOP warning on the dashboard. I pulled over and called the shop to come tow my car. By Thursday they said they couldn't diagnose or fix the problem but stated it had to do with the Transmission and to have it towed to the Mercedes Benz dealership. I had it towed to the Morristown, NJ Mercedes Benz service dept and they stated that it appears that it is the Transmission Valve Body. I spoke with Mercedes this morning (July 28, 2025) and that is when I learned it was the Transmission Valve Body and that it is going to cost me $4,000.00 plus labor. This makes no sense as the car has less than 26,000 miles on it. I researched a bit on this and found that there may have been a recall for this car but I was never notified of the recall. When the service rep told me that he was waiting to hear from corporate on this before he could give me an exact cost (this was after the technician stated what the issue was). I got suspicious as why would they need to contact corporate to figure out the cost of the repair. I could have gotten into a really bad accident if I was on a major road going 65mph.

NHTSA ODI 11676757

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.

NHTSA ODI 11629045

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.

NHTSA ODI 11429422