There are 9 owner-reported engine complaints for the 2018 Mercedes-Benz GLA-Classin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Why is the Crankcase Ventilation System P052E Code (PCV) covered in most Mercedes models, but not the GLA? This is an expensive repair that seems to cover other cars but penalizes GLA owners just to have a safe car to drive like the other models. I strongly believe GLA should be on the recall list for the matter, as it is dangerous to drive on the road, especially for those who cannot afford to fix it for upwards of $1,500 to $2000.
The contact owns a 2018 Mercedes-Benz GLA250. The contact stated that while the vehicle was parked, the check engine warning light illuminated. The contact used an OBD2 scanner and retrieved diagnostic trouble codes that indicated that the PCV valve had failed. The dealer was notified of the failure and advised the contact that the vehicle needed to be diagnosed to determine if the repair would be covered. The vehicle was not repaired. The contact related the failure to the Manufacturer Communication Number: 10241531. The manufacturer was not notified of the failure. The failure mileage was approximately 110,000.
The contact owns a 2018 Mercedes-Benz GLA250. The contact stated that while driving at an undisclosed speed, the vehicle stalled. There were no warning lights illuminated. The contact stated that there was a fuel odor coming from the vehicle. The vehicle was towed to the dealer where it was diagnosed that the fuel injectors had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure by the dealer. The approximate failure mileage was 196,077.
Positive Crankcase valve malfunction
Positive Crankcase Ventilation Regulator Valve - Code P052E This Recall are mentioned for other models with same year 2017 - 2020 But why not for GLA250. it's same problem and Dealer quote me $1500 - $2000 for Repair [XXX] Following threads prove there's lot of owners with same issue. [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
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! A quick online search proved that this issue is pretty common in MBenz models, there should definitely be a recall. This is inconvenient and appropriate actions should be undertaken against this.
The contact owns a 2018 Mercedes-Benz GLA250. The contact stated while driving at various speeds and attempting to accelerate, the vehicle hesitated and jerked abnormally before accelerating. The contact stated that the failure also occurred while accelerating from the vehicle idling. The check engine warning light was illuminated. The vehicle was taken to the dealer who diagnosed that the crankcase vent valve had malfunctioned and caused the failure. The contact was informed that the crankcase vent valve needed to be replaced. The vehicle had not been repaired. The dealer confirmed that the VIN was not covered under warranty. The manufacturer was not made aware of the failure. The failure mileage was approximately 30,000.
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. I had the car flat bedded to Mercedes of Cherry Hill. They had the car for several days. They called me and asked if the car was flooded or hit. I told them no to either. I explained how the car is garage kept. I was talking to my mechanic who services the car and started telling him the story. Before I could say anything he asked me if they asked me if the car was flooded? I said how did you know that? He told me that he has several customers with similar issues with the wiring harness in the front bumper. He told me that it's a bad design where water gets in and burns the harness out. The scary issue is the car not turning off or going into park. If my wife who drives the car was by her self had this issue what would she do?
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.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.