Mercedes-Benz GLA-Class Complaints

329 consumer complaints on file.

#11690737October 1, 2025
ELECTRICAL SYSTEM, VISIBILITY/WIPER
My turn signals are not working and warnings are showing up on my dashboard. My pillars are both wet on the drivers side and passenger side. My speed odometer and tachodometer are not working. The dash board iis showing the brake and high beams are on but they aren't on. I have fog on the front window when I get in the car. This situation is of major concern for my safety. I am not certain that the air bags would work? I refuse to drive this vehicle. I called Mercedes Benz in Wilmington, NC and I can't get an appointment until October 13th. I see in the Mercedes Benz recall that the sun roof and electrical problem were recalled.in 2019. I have a Mercedes Benz GLA 250 2019 and that was in the article. Mercedes told me my vin number was not included in the recall. I have the exact same problems as the other vehicles that were recalled. I appreciate your help in this matter to be put on the recall list. This is a major recall issue. I am in fear for my safety to drive with all the electric issues that exist as a part of this recall. Please notify me once this is approved so that I can call my dealership and have this issue resolved. I appreciate your immediate attention to this matter as this is my only transportation. Thank you for your attention in this matter [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687218September 14, 2025
ENGINE, UNKNOWN OR OTHER
This vehicle has a transmission control module defect. While driving, the car cuts off unexpectedly and prevents shifting gears, creating a serious safety risk that could easily cause an accident. A certified Mercedes-Benz dealer diagnosed the problem and confirmed it is an internal defect—one that cannot be prevented by regular maintenance or proper care of the vehicle. Because this is an internal issue, Mercedes-Benz should take immediate responsibility to repair it, rather than delaying or shifting accountability.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685719September 8, 2025
UNKNOWN OR OTHER, STRUCTURE:BODY
Structure body: roof and pillars affected Recall ID: 450977 year 2014- 2020 NHTSA campaign # 23v854000 Vehicle affected 2,976 A detached roof panel can become a road hazard, increasing the risk of a crash. The vehicle is making a loud noise from the panoramic soon roof.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11684815September 3, 2025
AIR BAGS
The contact owns a 2017 Mercedes-Benz GLA250. The contact stated that the warning light that the driver’s side air bag required service was illuminated. The contact stated that the warning light was constantly illuminated. The vehicle was taken to two independent mechanics, and the contact was informed that there might be a recall associated with the VIN. The contact stated that one of the independent mechanics retrieved a DTC that the "Squib to the Driver's Side Air Bag had an Open Circuit" and needed to be replaced. The vehicle was not repaired. The contact called a local dealer and was advised that there was a recall for the year, make, and model vehicle; however, the VIN was not included in the recall. The vehicle was not repaired. The contact researched online related to the failure of NHTSA Campaign Number: 17V627000 (Air Bags). The manufacturer was informed of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 60,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11684208August 31, 2025
ELECTRICAL SYSTEM
My vehicle electrical panel is messed up can not read the driver panel the sunroof electrical also is not working the driver seat chair electrical stopped working and ever since the sunroof n chair started giving me issues my front panels started to go haywire went to dealer ship cost n repair are over 4K for the panel sunroof 4-8k chair another 1-3k I regularly maintain my vehicle and should not be having these issues with the gentle care I give my car I can no longer drive it as it has major issues electrical and no one will buy it from me.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11683685August 28, 2025
UNKNOWN OR OTHER
1. *Component Failure*: The sunroof/moonroof has stopped functioning correctly due to broken plastic rail guides/sliders, causing issues with opening and closing. Additionally, there's a potential risk of the sunroof detaching from the vehicle due to faulty bonding between the sunroof glass panel and the sliding roof frame. 2. *Safety Risk*: The safety risk is significant, as a detached sunroof can pose a hazard to other road users if it separates from the vehicle while driving at high speeds. This issue can lead to accidents, injuries, or even fatalities. 3. *Problem Confirmation*: Yes, the problem has been confirmed by an Authorized Mercedes dealer, who has inspected the vehicle and acknowledged the issue. 4. *Inspection*: The vehicle has been inspected by the Authorized Mercedes Dealer. Given the recent recall notices from Mercedes-Benz regarding sunroof issues, it's possible that my vehicle might be affected by a similar problem. 5. *Warning Signs*: There were no warning lamps, messages, or symptoms before the failure, indicating a mechanical issue or part/component failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682723August 24, 2025
UNKNOWN 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682440August 22, 2025
STEERING, AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT
The contact owns a 2015 Mercedes-Benz GLA250. The contact stated that while driving at an undisclosed speed, the SRS warning light illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the steering control module. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 180,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11679767August 11, 2025
ENGINE
The contact owns a 2015 Mercedes-Benz GLA 250. The contact stated that occasionally, while driving at various speeds, the vehicle experienced a loss of automotive power. The check engine warning light was illuminated. The contact stated that the failure had progressed. The vehicle was taken to a local independent mechanic, where it was diagnosed and DTC: P052E71; was retrieved. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The contact related the failure to an undisclosed recall; however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 90,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11677929August 2, 2025
FUEL/PROPULSION SYSTEM, VEHICLE SPEED CONTROL, ENGINE
When coming to a full stop at a red light (or any need to idle at a stop), the car frequently begins to hesitate as if it is about to cut off. I assume it has something to do with the ‘fuel saving feature’ which comes on in the form of a green symbol in the lower left of the odometer display (the engine is still running the AC) . When you start to drive again the car always jerks before moving , on at least 3 occasions it has actually cut off completely and must be restarted (everything goes off) - it is big problem, especially in heavy traffic (horns blaring & angry drivers are encountered) I almost had a car hit me from behind; my car had jerked slightly when I began to accelerate and then shut off completely. It is definitely a dangerous defect. The Dealership emphasizes 93 Octane gas or higher to help with this issue- but I Always use the highest Octane gas I can find ! It has happened VERY often - I dread stopping at red lights and stop signs, one day it will cause an accident.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11676757July 28, 2025
ELECTRICAL SYSTEM, ENGINE, UNKNOWN OR OTHER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11675140July 21, 2025
UNKNOWN OR OTHER
To Whom It May Concern at the National Highway Traffic Safety Administration (NHTSA), I am submitting this complaint regarding the Mercedes-Benz GLA-Class vehicles equipped with the M274 engine, which have been unfairly excluded from recent recall campaigns affecting this engine family. The same engine (M274) in other models — including the C-Class (C300), E-Class, and GLC-Class from the same model years — has been recalled due to serious issues affecting engine reliability and safety. The specific issue I (and many other GLA owners) have encountered is the activation of the Check Engine Light, accompanied by diagnostic trouble code P052E71, which refers to a malfunction in the crankcase ventilation valve. This is a well-documented failure associated with the M274 engine and has been a primary reason for recalls in other Mercedes-Benz models. The malfunction leads to engine performance problems, potential stalling, increased emissions, and poses long-term mechanical risks if not promptly addressed. My Mercedes-Benz GLA, which shares the exact engine platform (M274) and falls within the same production period as the affected C-, E-, and GLC-Class models, is experiencing this identical issue. Yet, Mercedes-Benz has excluded the GLA model from the recall, despite no technical justification for this omission. This selective treatment is concerning, especially given the safety and environmental implications of the defect. By failing to include the GLA-Class in the recall, Mercedes-Benz is leaving affected owners to bear the cost of repairs for what is clearly a manufacturer defect — one they have already acknowledged in other platforms. I urge NHTSA to: Investigate the exclusion of GLA-Class vehicles from the M274 engine-related recall; Require Mercedes-Benz to expand the recall to include all models sharing this engine, especially those exhibiting the P052E71 crankcase ventilation valve failure; Ensure affected GLA owners receive the same safety protections and
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11673669July 15, 2025
POWER TRAIN
Rear differential is faulty. This is the second time it has failed. The first time was in October 2021 the mileage was 44,812 and it was repaired. More recently it was making a noise and I took it back to Mercedes Benz dealership for repair. It was not properly diagnosed over an 8 week period and now it has completely failed. After the fact, I discovered many more Mercedes Benz owners have had the same problem with this happening but there is no recall. I am reporting it so it can be noted that this is an on going issue with these vehicles and hopefully a recall of faulty equipment will be issued
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11670346June 30, 2025
ENGINE, FUEL/PROPULSION SYSTEM
Check engine light on my 2015 MB GLA250 4matic came on and the error is "P052E PCV Regulator Valve Performance". There is a recall for other MB vehicle with the same engine. I believe the 2015 Mercedes-Benz GLA250 and other models with the same engine should be included in the recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11668794June 24, 2025
ENGINE
I have a 2015 Mercedes benz GLA 250 showing code P052E There’s a TSB (MC‑10241531‑0001) and (LI01.20-P-076894 )covering intake‑line assemblies on similar M270‑engine models. Based on these two service bulletin kindly assist with extended emissions warranty
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11668964June 24, 2025
VISIBILITY:SUN/MOON ROOF ASSEMBLY
to a sunroof bonding issue that could cause water leakage
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11664899June 4, 2025
FUEL/PROPULSION SYSTEM
Problem has been confirmed by dealer that the rear differential assembly needs to be replaced. This is a very common defect with gla250’s. 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 don’t 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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11664595June 3, 2025
FUEL/PROPULSION SYSTEM, UNKNOWN OR OTHER
Crankcase Vent Valve needs replaced. Causes jumps in acceleration and pressure build up. Was a recall in other models. Took to a dealer today to confirm the check engine light and this was the cause.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11661372May 16, 2025
ENGINE, UNKNOWN OR OTHER
I am reporting a potential safety and mechanical defect involving the cylinder head in the Mercedes-Benz GLA 250. Many owners, including myself, have experienced premature cylinder head failure, often without warning, leading to loss of power, engine misfires, rough idling, and in some cases, sudden engine shutdown while driving. This issue appears to be widespread among GLA models equipped with the M260/M270 engine, often occurring well before 100,000 miles. It raises serious concerns about the design, durability, and safety of the engine’s top-end components. Given the frequency and severity of this failure — and the high cost of repairs — I believe this warrants an official investigation and potential manufacturer recall. I urge the NHTSA to review similar complaints and initiate a formal inquiry into Mercedes-Benz’s awareness and handling of this defect. Thank you for your attention to this matter.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11658896May 5, 2025
FUEL SYSTEM, GASOLINE
The contact owns a 2019 Mercedes-Benz GLA250. The contact stated that on several occasions while driving at various speeds and while parked, the contact observed a gasoline odor in the cabin of the vehicle and outside the vehicle. The vehicle was taken to an independent mechanic, where it was diagnosed that the fuel injector and fuel rails needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 58,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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