Mercedes-Benz GLA-Class Complaints

329 consumer complaints on file.

#11549737October 13, 2023
ENGINE
car engine turned off by itself in the traffic. It has happened a few times when I was waiting at the traffic light or waiting in lane to make turn. The engine suddenly turned off completely and I was caught in the traffic.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11549868October 13, 2023
POWER TRAIN
Car randomly shifts to neutral, displays message : "reverse not available" or "transmission malfunction". Car rapidly slows down causing cars behind to make avoidance maneuvers. Scanned fault codes: P079200 (transmission rpm sensor 1 malfunction) P274600 (transmission rpm sensor 2 malfunction)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11549872October 13, 2023
POWER TRAIN
Rear differential failed at 55,000 miles. Mercedes-Benz of Lafayette IN last had possession of the part. In a high-speed turn, this could result in loss of control of the vehicle. The differential was replaced at the owner's expense, and the failed part was left with the dealership. I am aware of numerous reports of premature rear differential failure in this model (after the fact). There was an occasional thunking noise during turns that the driver (my son) did not think anything of. The vehicle has been meticulously maintained. Within the week the vehicle was serviced and the rear differential needed to be replaced. No warning lights were present.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11548401October 5, 2023
ENGINE
We own a 2015 Mercedes GLA. There has been a voluntary extended warranty due to a known issue on their end for years with this very expensive fix on low mileage cars. The voluntary extended warranty for this issue is not including the GLA class, when Mercedes has known this is a known issue and defect with their vehicles at the detriment and safety of the owners who unknowingly have to deal with this. I am writing to encourage the NHSTA to have Mercedes be accountable for this issue outside of the complaints related to the C class.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11547873October 2, 2023
ENGINE
Engine misfired in operation requiring an emergency stop while on a mountain road. Severe check engine light turned on (Mercedes has a two stage check engine light). Vehicle was parked for 20 minutes and battery was disconnected. This appeared to fix the issue. Vehicle was brought to dealer. Dealer stated the cylinder head for early 2021 GLA 250 engines had a casting flaw that result in hot gases escaping and damaging engine. Engine and turbo rebuilt under warranty at 17000 miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11546751September 27, 2023
ELECTRICAL SYSTEM
The entire circuit board was short circuited immobilizing the car in the middle of the highway. It was determined that the condensation of the air conditioning was unable to drain due to the drainage tubing being clogged with insects, causing water to back up and short circuited the electrical system.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11546542September 26, 2023
POWER TRAIN
The vehicle change's gears and automatically switch to neutral while driving. I almost had a major accident on the interstate. This happened several times and the last time it happened was on September 23rd. The first time the incident happened I was told that it was a sensor in the car and was charged $700 and 4 days later it happened again. I took the car in again and now I am being charged for a new valve body in the transmission and a battery replaced aux battery. In my opinion that is a default not a maintenance issue and I should not have to pay for this, and Mercedes should have a recall on this because it can cause a very serious accident. [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
#11546494September 25, 2023
FUEL/PROPULSION SYSTEM
Smell of gas when turning on heater, fuel leaking on engine block
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11545468September 19, 2023
VISIBILITY:SUN/MOON ROOF ASSEMBLY
The contact owns a 2017 Mercedes-Benz GLA250. The contact stated that while the vehicle was parked, the sunroof button was depressed, but the sunroof failed to close as intended. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 64,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11545501September 19, 2023
VISIBILITY:SUN/MOON ROOF ASSEMBLY
The contact owns a 2016 Mercedes-Benz GLA250. The contact stated that the sunroof panel had detached, allowing wind and debris to enter the vehicle. The vehicle was taken to an unknown dealer, who informed the contact that the VIN was not included in NHTSA Campaign Number: 21V197000 (Structure). The unknown dealer pushed the sunroof panel back into position; however, the failure recurred due to the wind. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 47,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11544654September 15, 2023
ELECTRICAL SYSTEM, BACK OVER PREVENTION: WARNINGS
Subject: Urgent: Electrical Issues Causing Frequent Dashboard crashes I hope this email finds you well. I am writing to bring to your attention a recurring problem with my vehicle's electrical system, specifically the dashboard. Over the past few days, I have been experiencing frequent crashes where the dashboard turns off and on intermittently, rendering various functions inoperable. This issue has become increasingly problematic as it affects the proper functioning of essential components such as the speedometer, fuel gauge, temperature display, and other vital indicators. As a result, it has become difficult to monitor the vehicle's performance and ensure a safe driving experience. I have made several attempts to troubleshoot the issue, including checking the fuses, battery connections, and wiring harnesses, but to no avail. It appears that there is an underlying electrical fault that requires professional attention. Considering the importance of a fully functional dashboard system for the safe operation of the vehicle, I kindly request your assistance in addressing this matter urgently. I would greatly appreciate it if you could schedule a diagnostic appointment at your earliest convenience to identify and rectify the root cause of this issue. If it helps, I can provide additional information such as the make, model, and year of my vehicle, as well as any other details that may assist your team in diagnosing the problem more efficiently. Please let me know the best way to proceed and the soonest availability for an appointment. I understand that your schedule may be busy, but I hope we can find a suitable time for me to bring in my vehicle and have the issue resolved promptly. Thank you for your prompt attention to this matter. I look forward to hearing from you soon and finding a solution to this electrical issue. Warm regards, [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
#11544751September 15, 2023
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
The contact owns a 2017 Mercedes-Benz GLA250. The contact stated while driving 30 MPH, several unknown warning lights illuminated. The vehicle was taken to the dealer and the contact was informed that the computer software needed to be updated. The vehicle was repaired but the failure reoccurred. The vehicle was taken to the dealer again and the contact was informed that the instrument cluster needed to be replaced. The vehicle was not repaired. The manufacturer was contacted, and a case was filed. The failure mileage was 74,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11544109September 12, 2023
ENGINE, FUEL/PROPULSION SYSTEM
I purchased this car approx 3 months after real issues began. My car would have issues idling where it would sometimes turn off at stop lights and require multiple reignition attempts before proceeding. This would also happen when the auto-start feature (anti-idle/gas saving) was engaged (which is the default in the system) and this posed major safety concerns. The unstable idling of the car would result in an initial acceleration after being stopped, shortly followed by the engine dying. There were multiple times I was at an intersection yielding before turning where this happened and it resulted in my being in the path of oncoming traffic without the ability to accelerate until the car restarted. I contacted my local Mercedes dealer who acted like this wasn't a big deal, but it is related to a known issue with a faulty cylinder head. They covered the repair under the manufacturer warranty, but told me to keep driving my car and promised it was safe until they could get the part in (because the didn't have a loaner car to provide). I found this very troubling. In conversations throughout the repair being completed, the dealer admitted that they know the part that was used for the year and model is bad, but they didn't want to do a recall and would wait for issues to come up. This is unacceptable because this absolutely is a safety concern as demonstrated by the example I shared. They should be required to do a full recall to address the safety concerns and I believe not disclosing this information was unfair to me as a consumer who did not have the information I needed to be informed on the reliability of this vehicle prior to purchase.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11543620September 9, 2023
FUEL/PROPULSION SYSTEM
On September 7th, 2023 while I was on the fastest lane driving to work in the morning on I 10 fwy, the car shut down without any prior warning. Couldn't even put it in neutral. Called 911 and a cop called the towing service to take the car out of the fwy. Mercedes Benz Ontario dealer diagnostics says it's due to a fuel pump failure. I see a same issue recall, but not for my model. Mercedes should check if my model sold also has a similar fuel pump failure issue. It's very dangerous to stop without any warning.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11542316September 2, 2023
UNKNOWN OR OTHER
My roof rails are worn and need replacement because my sunroof is no longer operating
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11541996August 31, 2023
UNKNOWN OR OTHER
What component or system failed or malfunctioned, and is it available for inspection upon request? The sunroof/moonroof stopped functioning correctly. The plastic rail guides/sliders broke and the sunroof stopped closing and opening correctly. How was your safety or the safety of others put at risk? The sunroof is not properly attached to the broken parts and could be a hazard if it separates from the roof while driving at highway speed. Has the problem been reproduced or confirmed by a dealer or independent service center? yes, the problem is confirmed by the Authorized Mercedes dealer. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? It was inspected by the Authorized Mercedes Dealer. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? No warnings, it's a mechanical issue and a failure of the part/component
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11541607August 30, 2023
SEAT BELTS
The rear drivers side seat belt receiver would not allow the belt buckle to insert leaving the rear passenger without seatbelt protection. During the inspection process at the dealers the technician fount a small (1cm) item lodged in the receiver area. My concern is that an item of that size would be able to render the seatbelt assembly inoperable. Based on the many test criteria for these items I believe that the receiver should have been designed to prevent small items from becoming lodged into the receiver and preventing use of the seatbelt. The item required the dealership to completely remove the seat and the receiver assembly from the car to determine the failure mode.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540872August 26, 2023
AIR BAGS, STEERING, FORWARD COLLISION AVOIDANCE: WARNINGS
All warning lights on dashboard lights up while driving. Got two diagnostic tests and conclusion is steering column module needs to be replaced 2016 had a recall between 2015-2018 on Gla250 2nd diagnostic test the SRS Module needs to be replaced it sounds like a manufactured problem and Mercedes Benz repair shop needs to investigate because it’s a hazardous safety issue lights on dashboard lights up are traction control airbags off brake lights cruise control and SES all reads malfunctioning see dealership
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11535960August 2, 2023
WHEELS
When turning, I hear a thumping, grinding or chatter noise from the rear differential and the car slows. Mechanic changed the differential oil and found metal shavings/particals. Noise was not there for about 80 miles but has returned. I have to get a new right differential. I checked on the forums and this seems to be a common problem, one owner has had to replace his differential 4 times.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11535283July 30, 2023
ENGINE, UNKNOWN OR OTHER
My Mercedes-Benz, 2016GLA 250 vehicle. The automatic transmission shifts into neutral while driving. It’s happened on multiple occasions and it’s very scary. This is a dangerous safety issue! I’ve seen it’s been recalled/addressed for other GLA250 model years, but not for 2016 year models. Please bring to MB USA attention. Thank you very much for your assistance!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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