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Transmission and drivetrainPart report

2018 Mercedes-Benz GLA 250 Transmission and drivetrain Problems

Complaints
6about this part
Share
12%of 50 total for the year
Median mileage
45,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the transmission and drivetrain of the 2018 Mercedes-Benz GLA 250, 12% of the 50 complaints for this model year. Where a mileage was given, the median is 45,000 miles.

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.

“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. …”

NHTSA complaint #11673669, filed 2025-07

“The contact owns a 2018 Mercedes-Benz GLA250. The contact stated while driving 25 MPH, the transmission unintendedly shifted to neutral. No warning light was illuminated; however, the message Transmission Error was displayed on the instrument panel. The vehicle was taken back to the residence. A dealer was not contacted, and the vehicle was not diagnosed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 40,000.”

NHTSA complaint #11622356, filed 2024-10, 40,000 miles

“The contact owns a 2018 Mercedes-Benz GLA250. The contact stated while his mother was driving 45 MPH, the message that reverse was not available was displayed. The contact stated that the vehicle shifted into neutral independently and the ABS inadvertently engaged. The contact diagnosed the vehicle and determined that the wheel center and transmission needed to be replaced. The wheel center was replaced; however, the transmission was not repaired or replaced. The manufacturer was notified of the failure but offered no assistance. …”

NHTSA complaint #11627247, filed 2024-11, 59,762 miles

“The contact owns a 2018 Mercedes-Benz GLA250. The contact stated while his wife was driving and the vehicle was stationary at a traffic light, the vehicle shifted independently into neutral(N). The contact stated no warning light was illuminated. The driver restarted the vehicle and was able to continue driving to her destination. The contact towed the vehicle to the local dealer, where it was diagnosed with needing the battery replaced. The vehicle was repaired but continued to experience failure. The vehicle was not drivable. The contact stated that the failure was experienced several times. …”

NHTSA complaint #11475911, filed 2022-07, 45,000 miles

“I was driving on the freeway and the transmission shifted into neutral and the car lost power. The Red malfunction lights came on and said transmission malfunction, DO NOT SHIFT, STOP driving immediately, contact dealer. …”

NHTSA complaint #11625915, filed 2024-11

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
2023113%
2021211%
2020218%
20191241%
2018612%
2017310%
2016510%
20151415%

Other parts of the 2018 Mercedes-Benz GLA 250

Electrical system
10 complaints
Engine
10 complaints
Other or unknown
10 complaints
Fuel system
7 complaints
Air bags
6 complaints
Wheels
5 complaints
Body and structure
4 complaints
Visibility (wipers, defrost, mirrors)
3 complaints
Back-over prevention (rear camera)
2 complaints
Engine cooling
2 complaints
Forward collision avoidance
2 complaints
Steering
2 complaints

← All problems reported for the 2018 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