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EnginePart report

2018 Mercedes-Benz GLA 250 Engine Problems

Complaints
10about this part
Share
20%of 50 total for the year
Median mileage
4,700miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 10 complaints about the engine of the 2018 Mercedes-Benz GLA 250, 20% of the 50 complaints for this model year. Where a mileage was given, the median is 4,700 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.

“The problem is when travelling at low speeds or stop the car to halt able to hear a noise from the rear end. Like a metal hitting another metal. It has been only 1 month I bought the car and 1300miles on it. The car is making really loud noise when stopped and hear it properly. It is making cling cling noise. I really worried about this issue. I almost observe everyday.”

NHTSA complaint #11040373, filed 2017-10, 900 miles

“Car battery dies if vehicle not driven often and/or for longer distances. This was not explained at time of sale nor does manual mention. There is no warning light that battery is low. No fix. Told I should hook up to trickle charger. Vehicle is stationary.”

NHTSA complaint #11321182, filed 2020-04, 4,700 miles

“I am filing a complaint regarding my 2018 Mercedes-Benz GLA 250. My vehicle recently triggered a check engine light and was diagnosed by an independent mechanic with code P052E, related to the positive crankcase ventilation regulator valve / crankcase ventilation system. My mechanic advised that this issue appears to be similar to a known Mercedes-Benz issue affecting other model years and/or related Mercedes models. …”

NHTSA complaint #11745674, filed 2026-06

“My Car's warranty expired in Dec 2022 and a few months later the engine light came on. It stayed on for a few weeks than was turned off by itself. In Dec 2023, the engine light came back on again. I also noted jerks when driving slow (10 miles/h). Upon checking with Mercedes Benz of Tri Cities-Richland, WA, spending $400 on diagnostics, the staff quoted me $3500 for Crank Case Ventilation replacement. This is a really expensive part/labor and it is ridiculous that Mercedes does a poor job! …”

NHTSA complaint #11585554, filed 2024-04

“In July 2022 I was a few miles from my home when the cluster starting showing warning lights. It started scrolling inoperative power brakes, inoperative steering and inoperative parking. Also the cluster was completely lit up. I turned the car around and put it in my garage. This is where the issues really started. The car would not go into park or turn off. I sat with my foot on the brake for 30 minutes trying to continue turning the car off or put in park. I finally had my wife take the key and walk 1/8 mile away before the care would turn off. …”

NHTSA complaint #11493542, filed 2022-11

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2023338%
2021528%
2020218%
2019310%
20181020%
20171032%
20161529%
20152729%

Other parts of the 2018 Mercedes-Benz GLA 250

Electrical system
10 complaintsOther or unknown
10 complaintsFuel system
7 complaintsAir bags
6 complaintsTransmission and drivetrain
6 complaintsWheels
5 complaintsBody and structure
4 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsBack-over prevention (rear camera)
2 complaintsEngine cooling
2 complaintsForward collision avoidance
2 complaintsSteering
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 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