Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2015 Mercedes-Benz GLA250 owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2015 Mercedes-Benz GLA250. The contact stated while driving at an undisclosed speed, the vehicle sputtered, and the check engine warning light illuminated. In addition, the collision assists warning light illuminated. The vehicle was taken to an independent mechanic where it was diagnosed with a failed PVC valve. Additionally, the transmission assist needed service due to overheating. The collision assist warning light was reset. The vehicle was repaired. The contact stated that the failure had reoccurred, and the collision assist, and the check engine warning lights illuminated again. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact stated that the failure occurred four times. The vehicle was repaired twice by the dealer and once by an independent mechanic. The manufacturer was not made aware of the failure. …
The contact owns a 2015 Mercedes-Benz GLA 250. The contact stated that occasionally, while driving at various speeds, the vehicle experienced a loss of automotive power. The check engine warning light was illuminated. The contact stated that the failure had progressed. The vehicle was taken to a local independent mechanic, where it was diagnosed and DTC: P052E71; was retrieved. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The contact related the failure to an undisclosed recall; however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 90,000.
The contact owns a 2015 Mercedes-Benz GLA250. The contact stated while driving at approximately 25 MPH, the vehicle lost motive power and stalled in the middle of the roadway. The contact stated there was an unknown message in RED displayed on the instrument panel. The contact stated that the vehicle restarted after several attempts and operated normally. The contact stated that the failure became more frequent. The contact had not taken the vehicle to a local dealer or independent mechanic to be diagnosed or repaired. The manufacturer had not been informed of the failure. The failure mileage was 55,000.
The contact owns a 2015 Mercedes-Benz GLA250. The contact stated when the vehicle was started, the check engine warning light illuminated, and there were fumes from the exhaust entering the cabin of the vehicle. Additionally, while driving at various speeds, the vehicle stalled. The contact stated that the failure persisted. The vehicle was taken to the dealer to be diagnosed; however, the vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 98,000.
Today a Check Engine Light turned on my vehicle. I pulled the code via the OBD2 port and looked it up online. It turns out that this issue, code P052E, a defective Crankcase Ventilation Regulator Valve, is a well known problem on in-period MB cars and the manufacturer has issued an extended warranty to other models in their range, but excluded the GLA250, which uses the same parts as several other covered models including the GLC300, a vehicle covered by said extended warranty. If left untreated oil can travel up the electronic lines, ultimately fouling the ECU leading to an extreme hazard. This fault is also extremely expensive to fix, about $2000, as the faulty part (alone about $70) is sold only as a component of a larger kit (about $700), and installing the kit requires removing motor mounts and hoisting the engine. …
Good Afternoon, the status of my vehicle is simply UNKNOWN. I purchased my vehicle on the 26th last year of January. That same day I drove it back home my car was jerking. So I went back the following day to see if I could get into another vehicle because this one was malfunctioning they didn't want to do anything for me. I tried so many different options to get out of this car I had a few scares driving this car the week of ownership. About sis times my car cut off completely during traffic and I have some recorded videos. Theirs a leakage somewhere I can fill up my gas tank to full and drive maybe two blocks away from my house and the gas meter is say that I have half a tank. Now my car is overheating, it's not cranking it just tells me on the dashboard that 4MATIC is unavailable.
When it first started to malfunction, my car would suddenly loose power out of nowhere and pretty much stop wherever. It's done it when I was crossing a busy intersection and it stalled right in the middle of the road causing other cars to have to stop or go around me. It has also stopped while I was driving on the freeway. I didn't even have enough power or momentum to pull off to a safe lane and almost caused an accident and several times while I was driving up a narrow two way road in the mountains. Later down the road my check engine light came on and I got the code p205e, Crankshaft ventilation breather hose is clogged, then my car lost power for good. It has been parked for almost a year now because I can't afford the repair and I am still paying car payments and insurance on it
My 2015 Mercedes Benz GLA check engine light came on for error P052E Positive Crankcase ventilation assembly. This is a $2,000 dollar repair because you need to buy the whole assembly and you can't just buy the valve like other cars. This part has a recall on other models but not the GLA. For example the metrics uses the same part and is covered by a recall but not the GLA. We need to included in this recall. This design flaw renders my 2015 useless and virtually has no value. Please compel Mercedes to recall this defective part and design flaw that requires 6-8 hours of labor for a simple part that is easily accessible on all other cars.
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.
The car had only 71,000 miles on it when it it had a crank no start situation that immobilized it and had to be towed. After diagnostics at two repair shops, it was determined that the exhaust camshaft was the cause. This model year car has a recall (Mercedes campaign 2015100009 and NHTSA campaign 15V662000) for the camshaft but not for the car's VIN. This failure should not occur in a car with this mileage. Had it suddenly stalled while driving, it could have resulted in a potential accident.
Related recalls
Engine and engine cooling › Engine
Mercedes-Benz USA, LLC (Mercedes-Benz) is recalling certain model year 2015 CLA250, CLA250 4Matic, GLA250, GLA250 4Matic, and 2016 SLK300 roadster vehicles manufactured July 17, 2015, to August 31, 2015. The affected vehicles have intake or exhaust camshafts whose welds may fail and possibly cause engine damage.
Remedy: Mercedes-Benz will notify owners, and dealers will replace the affected camshafts, free of charge. Interim notices were mailed to owners on December 9, 2015. The recall began on December 23, 2015.
Engine complaints in other GLA250 years
Frequently asked questions
How common are engine problems on the 2015 Mercedes-Benz GLA250?
NHTSA has 27 complaints about the engine & cooling of the 2015 Mercedes-Benz GLA250, 29% of the model year's 94 complaints.
Is there a recall for 2015 Mercedes-Benz GLA250 engine problems?
Yes — NHTSA recall 15V-662 (engine, Oct 16, 2015). Recall repairs are free at authorized dealers.
At what mileage do 2015 Mercedes-Benz GLA250 engine problems start?
Half of the complaints with a recorded mileage happened before about 50,000 miles, and 18% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.