2020 Mercedes-Benz GLA 250 Other or unknown Problems
- Complaints
- 3about this part
- Share
- 27%of 11 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the other or unknown of the 2020 Mercedes-Benz GLA 250, 27% of the 11 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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.”
NHTSA complaint #11682723, filed 2025-08“Strong “gas odor” upon entering car And continues despite opening all windows to ventilate-also on one time occasion - sudden deceleration And “surging speed” alternately While cruising- it feels that the car Will “stop” and it’s worrisome that I may be “hit “ by the vehicle behind me- also several “dashboard warning lights” different messages just “flashed” which also caused some “Panic” 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”
NHTSA complaint #11616169, filed 2024-09“Transmission problem. On several occasions while driving, the car has lurched to a stop because gear changed suddenly from Drive to Park. At other times, the engine revvs and slows when it suddenly switches from Drive to M1. After stopping, it goes back to D on its own. Serious safety issue, as I can get rear ended in traffic, or cause an accident for stopping without notice. I have one photo of the sudden transmission switch to M1 (today). Car has been towed to Mercedes service department; no other inspection yet. No warning lamps. Only that it is happening more frequently.”
NHTSA complaint #11488566, filed 2022-10Related service bulletins
- 11031558Apr 24, 2026Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names…
- 11030301Mar 25, 2026Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names…
- 11028809Feb 13, 2026Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the TIREFIT sealant bottle may not meet specifications. The…
- 11027782Jan 21, 2026Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names…
- 10238424Jun 9, 2023In the MBUX weather app, the temperature is displayed in the wrong unit (Fahrenheit instead of °C, or vice versa). Temperature setting in Mmc mobile application settings…
- 10187785Jan 4, 2021The following complaints may be noted by the customer: - The MBUX multimedia system (A26/17) starts route guidance without user input and does not provide any audio notification…
- 10179966Jul 31, 2020Incorrect time and/or instrument cluster message "SOS, service not activated" and/or Mercedes Me connect services nonfunctional
- 10205154Aug 5, 2016Gasket may settle causing a slight oil leak.
Other or unknown: other model years
Other parts of the 2020 Mercedes-Benz GLA 250
3 complaintsEngine
2 complaintsFuel system
2 complaintsSteering
2 complaintsTransmission and drivetrain
2 complaintsBrakes
1 complaintsForward collision avoidance
1 complaintsLane departure
1 complaintsSeats
1 complaintsBody and structure
1 complaintsWheels
1 complaints
← All problems reported for the 2020 Mercedes-Benz GLA 250
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology