2021 Mercedes-Benz GLA 250 Transmission and drivetrain Problems
- Complaints
- 2about this part
- Share
- 11%of 18 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the transmission and drivetrain of the 2021 Mercedes-Benz GLA 250, 11% of the 18 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.
“I was parked in a lot and turned the ignition on and selected DRIVE but when I started to pull away the vehicle went backwards instead of forwards (as though REVERSE had been selected). I switched back to PARK, then selected DRIVE again and the vehicle once again went backwards. I then turned the engine off altogether and restarted it and this seemed to clear up the problem as now the vehicle went forwards when in DRIVE. No damage, or injuries, but of course very concerning from a safety point of view which is why I am reporting this. …”
NHTSA complaint #11464869, filed 2022-05Related service bulletins
- 11037211Aug 29, 2026Complaint Intermittent shift feel or thud/clunk noise perceived, such as a brief jerk or transmission reaction during certain driving situations. May be most noticeable when…
- 11036514Aug 25, 2026Complaint Customers may report one or more of the following: • Transmission malfunction message • Check engine light illuminated • Shifts into N • Concern disappears after…
- 11036343Aug 21, 2026Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline…
- 11035713Aug 4, 2026Complaint Customers may report one or more of the following: • Transmission malfunction message • Check engine light illuminated • Shifts into N • Concern disappears after…
- 11035005Jul 14, 2026Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of…
- 11026832Dec 19, 2025Complaint Oil residue in connector of transmission control unit in dual-clutch transmission models 724.0 and 724.1. Cause As part of the production process, the electrohydraulic…
- 11025648Nov 15, 2025Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse…
- 11024632Oct 29, 2025Complaint Instrument cluster message "4MATIC inoperative". The following fault code may be present in all-wheel drive control unit N15/17: P147354 - Erroneous adaptation of the…
- 11023193Sep 17, 2025Complaint Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick test and/or no communication possible with VGS. Cause…
- 11022045Aug 5, 2025Complaint Customer complaints regarding automatic transmission 724.1 (8FDCT & 8FDCT hybrid) For faster, more effective and more targeted diagnosis, Intelligent Predictive Repair…
Transmission and drivetrain: other model years
Other parts of the 2021 Mercedes-Benz GLA 250
5 complaintsElectrical system
4 complaintsOther or unknown
4 complaintsFuel system
3 complaintsBack-over prevention (rear camera)
2 complaintsLatches, locks and linkages
2 complaintsTires
2 complaintsBrakes
1 complaintsEngine cooling
1 complaintsForward collision avoidance
1 complaintsBody and structure
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2021 Mercedes-Benz GLA 250
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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