*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Service brakes
Vehicle: 2020 Mercedes-Benz GLA 250 VIN: [XXX] I am filing a safety complaint regarding a severe, recurring defect in the Electronic Parking Brake (EPB) and vehicle braking system. On three separate occasions, the vehicle has malfunctioned while driving, dangerously creating an imminent risk of an accident. Without warning, the vehicle acts as if the emergency parking brake has been manually engaged. Immediately following this event, multiple warning lights illuminate on the dashboard (including a warning stating "Active Brake Assist Functions Limited"). Once these lights appear, the braking system completely locks up the wheels, stalling the vehicle in place and making it entirely…
Oct 19, 2026Structure › Body
I have a 2020 GLA 250 4 matic mileage 62000 with a rear differential failure Was confirmed by a dealer. Mercedes is aware of this problem, there should be a safety recall before someone gets hurt.
Aug 23, 2026Seats1 injury
A bicyclist claims I almost ran him over. I didnât hit him, but he fell over and made sued my insurance company. He claims he was at the right side of my car as I was merging towards the right to make a turn. If he was indeed in my blind spot, then itâs important to note that the blind spot assist didnât alarm and that the design of the passenger seat does create a blind spot, especially for someone of short stature since I cannot see over the passenger seat. To avoid anything like this, Iâve had to remove the passenger headrest, it even at the lowest to the ground setting, the top of the passenger seat is higher than the rear passenger window, but at least the headrest no longer…
Jun 24, 2024Unknown or other
Had just gotten on the expressway, when a loud gunshot noise was heard. Out of fear, I ducked down, thinking it had actually been one. However, I heard a lot of wind coming in as if a window was down, when I look up, majority of my panoramic sunroof was gone. No messages or warnings appeared on the dash, and I pulled over to document photos and videos. The shade below the sunroof was not damaged, seems to be an internal force that made it explode and shatter into a thousand pieces.
Aug 23, 2025Fuel/propulsion system
Problem has been confirmed by dealer that the rear differential assembly needs to be replaced. This is a very common defect with gla250âs. It been recalled in the past and Mercedes Benz is putting many drivers at risk. The estimated to replace is $6100! Mercedes Benz corporation refuses to replace the part only offering $1300. That is submission that they are aware something is wrong. I donât feel safe driving a 2020 car. There have been many class action suits but there needs to be another investigation and recall which MB knows there is a problem and hazard
Jun 4, 2025Fuel system, gasoline › Fuel injection system
The contact owns a 2020 Mercedes-Benz GLA250. The contact stated that while driving 35-40 MPH, the check engine warning light illuminated. There was an abnormally loud rumbling sound heard. The contact pulled over and restarted the vehicle. The vehicle was taken to the local dealer, where it was diagnosed that the fuel injectors needed to be replaced. The vehicle was not repaired. The contact stated that the failure was related to TSB No: 2022030003. The manufacturer was contacted and referred the contact to the NHTSA Hotline. The failure mileage was approximately 86,000.
Oct 17, 2024 · 86,000 milesSteering
My Mercedes Benz GLA250 has a faulty rear differential and began shuddering and driving poorly when it had 44K miles on it. This is a very premature failure as diagnosed by two repair shops and is happening to thousands of this model Mercedes Benz. The damage can be catastrophic if continued to be driven as the differential metal continues to deteriorate and possibly have metal shavings travel into the engine. I was told initially by Mercedes Benz it was bad tires! I replaced the tires and the shuddering became worse. I searched for the problem myself on the internet as the problem continued to worsen and countless people are complaining, saying itâs the rear differential. The cost is…
Mar 1, 2024Unknown or other
Strong âgas odorâ upon entering car And continues despite opening all windows to ventilate-also on one time occasion - sudden deceleration And âsurging speedâ alternately While cruising- it feels that the car Will âstopâ and itâs worrisome that I may be âhit â by the vehicle behind me- also several âdashboard warning lightsâ different messages just âflashedâ which also caused some âPanicâ on me- brought the car to the shop- all they did ABS sensor replaced- no other issues noted- I read from MB owners forums about MB Recalls about same issues NHTSA 21V-961 NHTSA 23V- 445
Sep 12, 2024
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.