Mercedes-Benz GLA-Class Complaints (2015)

101 consumer complaints on file.

#11759718August 26, 2026
SUSPENSION, STRUCTURE:BODY
During an inspection, an authorized Mercedes-Benz dealership discovered severe corrosion and perforation, including holes, in the rear subframe of my 2015 Mercedes-Benz GLA. There were no warning lights or messages alerting us to the condition before it was discovered. The dealership confirmed that the subframe requires replacement and estimated the repair at approximately $6,000. The vehicle has approximately 140,000 miles. The rear subframe is a structural component that supports suspension components. Its advanced corrosion and perforation create concern that it could weaken or fail while the vehicle is being driven, potentially affecting vehicle stability and control. The vehicle and affected component are available for inspection upon request, and photographs of the corrosion and holes are available. Mercedes-Benz USA was notified of the problem but has not agreed to cover the repair. Mercedes-Benz has issued a 20-year/unlimited-mile extended warranty for corrosion with perforation of rear subframes on several other Mercedes-Benz models, but the GLA is not currently included. I am reporting this because the same type of premature structural subframe corrosion appears to be occurring in this vehicle and may present a safety defect affecting other GLA owners.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11734452April 28, 2026
UNKNOWN OR OTHER, VISIBILITY/WIPER
On the morning of April 28, 2026, at approximately 7:30 AM, I discovered that the front panel of the panoramic sunroof on my 2015 Mercedes-Benz GLA45 AMG had spontaneously shattered while the vehicle was parked at my residence in Meridian, Idaho. When I went out to the vehicle in the morning, I found glass fragments distributed across the rear seat area, the rear floor, and my child's car seat. Looking up, I saw that the front panoramic glass panel had shattered. My husband and I conducted a complete walk-around inspection of the vehicle exterior. We found no evidence of any external impact: no damage to the roof surface, body panels, surrounding trim, or any other glass on the vehicle. There was no debris (rocks, branches, hailstones, construction materials, or any other potential impact source) on top of, beneath, in or around the vehicle. The rear panoramic glass panel was intact. Glass fragments were present both inside the cabin and on the exterior surface of the roof and a few fragments were found on the roadway. The car seat where glass fragments fell is regularly occupied by my [XXX] daughter. On this particular morning, she was not in the vehicle only because of a coincidental change in our family's schedule that day, but typically she gets into her carseat independently, buckles herself, and I check her buckles. Thankfully, she was not injured but her car seat now has glass fragments in the seat. I am filing this complaint to document the incident in support of NHTSA's ongoing collection of safety data for consumers. 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
#11716914February 10, 2026
AIR BAGS
I came out from work. Got in my car and started it and went to make a three-point turn to go the opposite direction on a quiet back street in the airbag deployed halfway through and blew up in my face, causing my hands to be hurt and difficulty with breathing.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11714841February 1, 2026
LANE DEPARTURE: BLIND SPOT DETECTION, FORWARD COLLISION AVOIDANCE: WARNINGS
Collision Prevention Assist Plus Inoperative Light on the dashboard it appears often and beep I am not sure and why
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11700522November 20, 2025
STRUCTURE:BODY:ROOF AND PILLARS
The contact owns a 2015 Mercedes-Benz GLA250. The contact stated that the roof panel had detached and was tilted. The vehicle was taken to the dealer, where an estimate for the repair was provided. The contact related the failure to NHTSA Campaign Number: 21V197000 (Structure), but the dealer informed the contact that the VIN was not included in the recall. The vehicle was not repaired due to the cost. The manufacturer was not notified of the failure. The failure mileage was approximately 98,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11700532November 20, 2025
VISIBILITY
The contact owns a 2015 Mercedes-Benz GLA250. The contact stated that the sunroof panel was tilted on one side and fractured. There were no warning lights illuminated. Upon researching the failure, the contact associated the failure with NHTSA Campaign Number: 19V918000 (Visibility); however, the VIN was not included. The vehicle was taken to the local dealer, who confirmed there was no recall coverage on the VIN for the failure. The dealer provided an unknown diagnosis. The vehicle was not repaired. The manufacturer was contacted and confirmed that the VIN was not under recall. The failure mileage was approximately 85,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11699420November 14, 2025
SUSPENSION
The contact owns a 2015 Mercedes-Benz GLA250. While the contact's daughter was driving at an undisclosed speed, the rear suspension collapsed. The contact stated that when the failure occurred, the vehicle swerved into the next lane. The contact stated that there were no other vehicles nearby during the failure. The vehicle was towed to the dealer, where it was diagnosed with frame corrosion. The contact was informed that the frame needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 70,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11695495October 24, 2025
STRUCTURE:BODY
Mercedes repair shop inspected this car and stated that there is rear-subframe rusting and corrosion. Repair shop states that this is a safety issue. I took it into Mercedes dealer who stated that this VIN is not covered by a 20-year, unlimited-mile rear-subframe warranty (Feb–Mar 2023) for specific models (C/E/GLK/CLS/SLK/SLC/SL). Mercedes extended the warranty on the models where they saw the most repeat failures, in a way that addresses the worst cases (holes) while controlling scope and liability—not an admission of a universal defect across all lines (e.g., GLA), which is why my VIN isn’t in the program.
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
#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
#11640785February 5, 2025
FUEL/PROPULSION SYSTEM
Same part had been recalled from all other models but not my model. It's the same part being used across Mercedes and they won't sale the valve and force customers like me there are thousands other to spent $2700 plus to replace whole system. Should have been recalled since it's same valve that may be using across all vehicles. Failed the emission test which is a big problem they should have addressed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11633883January 3, 2025
FUEL/PROPULSION SYSTEM
They had recall of this part which is valve in all other models except for this one. My vehicle failed VEIP test due to faulty valve and required assistance from the dealer but they refused to provide solutions and asked to pay $2700 and $230 diagnosis fee when we already had code which showed which part and which is recalled in all other Mercedes vehicles with 150000 milage warranty. We cannot just replace valve they are forcing to replace whole assembly causing problems for many owners like me. My vehicle has only 36k milage. If same valve is faulty which creates environmental hazard that should be recalled in all models from same manufacturer Instead of forcing ripping customers with high cost and environmental risk.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11629346December 6, 2024
FUEL/PROPULSION SYSTEM, LANE DEPARTURE: BLIND SPOT DETECTION
Car smell like fuel possibly fuel injectors or fuel line… recall on 2016-2021 models but 2015 having same issue Blind spot assist says inoperative Mercedes changed sensors multiple times still says inoperative
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11615183September 18, 2024
VISIBILITY:SUN/MOON ROOF ASSEMBLY, POWER TRAIN
The contact owns a 2015 Mercedes-Benz GLA250. The contact stated while attempting to accelerate, the vehicle hesitated before accelerating. While driving at various speeds, the vehicle was lagging with a loud rumbling sound coming from the rear of the vehicle. The contact depressed the accelerator pedal excessively to stop the vehicle from hesitating. The failure had become more persistent. The contact stated that the sunroof failed to open, as well. There were no warning lights illuminated. The vehicle had not been taken to the dealer. The vehicle had not been diagnosed. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 133,277.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11611263August 27, 2024
ENGINE
Today a Check Engine Light turned on my vehicle. I pulled the code via the OBD2 port and looked it up online. It turns out that this issue, code P052E, a defective Crankcase Ventilation Regulator Valve, is a well known problem on in-period MB cars and the manufacturer has issued an extended warranty to other models in their range, but excluded the GLA250, which uses the same parts as several other covered models including the GLC300, a vehicle covered by said extended warranty. If left untreated oil can travel up the electronic lines, ultimately fouling the ECU leading to an extreme hazard. This fault is also extremely expensive to fix, about $2000, as the faulty part (alone about $70) is sold only as a component of a larger kit (about $700), and installing the kit requires removing motor mounts and hoisting the engine. Mercedes should either widen the Extended Warranty to cover all of it's vehicles built with the defective part or issue a recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11610274August 22, 2024
ENGINE, UNKNOWN OR OTHER, POWER TRAIN
Good Afternoon, the status of my vehicle is simply UNKNOWN. I purchased my vehicle on the 26th last year of January. That same day I drove it back home my car was jerking. So I went back the following day to see if I could get into another vehicle because this one was malfunctioning they didn’t want to do anything for me. I tried so many different options to get out of this car I had a few scares driving this car the week of ownership. About sis times my car cut off completely during traffic and I have some recorded videos. Theirs a leakage somewhere I can fill up my gas tank to full and drive maybe two blocks away from my house and the gas meter is say that I have half a tank. Now my car is overheating, it’s not cranking it just tells me on the dashboard that 4MATIC is unavailable.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11609498August 19, 2024
STRUCTURE, VISIBILITY:SUN/MOON ROOF ASSEMBLY
The contact owns a 2015 Mercedes-Benz GLA250. The contact stated that the sunroof failed to close completely as needed. Upon inspection, the contact discovered that a plastic part of the roof panel had detached. The vehicle was taken to an independent mechanic, who replaced the right and left roof guides, motor glass, and headliners. The contact related the failure to NHTSA Campaign Number: 23V854000 (Structure); however, the VIN was not included in the recall. The manufacturer was made aware of the failure. The failure mileage was approximately 120,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11608450August 14, 2024
POWER TRAIN
there is a known issue with the mercedes benz GLA 250 rear differential. it is defective and need to be replaced many times during the life of the vehicle. i have not had an accident that i can relate to this defect but i feel it need to be reported and investigated by your office. the cost of the repair is over $6000. you can read more about this issue in this forum [XXX] i started reporting the issue before the warranty expired, the dealer was never able to find the problem, after the warranty expires they "discovered" what the issue is, the rear differential need to be replaced. of course they deny any wrongdoing but this is a well documented manufacturing defect that should be addressed. 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

← Back to Mercedes-Benz GLA-Class