2018 Mercedes-Benz CLA250: check engine light

Filed Nov 13, 2025 · Electrical · GA

I have sent the below email over 100 times to Mercedes To whom it may concern, I am writing regarding the purchase of a CLA250 4matic in December. I had a 120 point inspection done that did not show any issues with this car. As I was driving down a dark road around 1 am, my life was thrown in danger as the command shaft shut off and I could not see the dashboard or any lights in the vehicle. I was alone and on a dark road. After sitting for 15 minutes, I was able to get a light to come on and drove to my destination. On my way home, the lights were acting erratic and the brake lights, bright lights, engine lights, gas gauge, rpm gauge and caution lights were flickering the entire time. The car had no problems starting, however this continued to happen. I parked the car for several days and after starting it again, the dashboard was black, I could not see to put it in park. I tried several days later and got the lights to come on and after driving through the light, the parking brake was thrown in place as I was driving, almost ejecting me from this vehicle. I immediately turned around and parked the car for over a week until bringing it to your service location at Atlanta South. The car put my life in danger, almost ejecting me out of the car. Thankfully I was not on the highway driving higher speeds or I would have been killed.. I am asking for Mercedes Benz to cover the entire amount for the command which I was told during service check was defective and wiring issues within the command. The cost is over $2,900. I believe this is a manufacturing defect whether you have any recalls on it or not. I will file a safety recall complaint with the federal safety agency Nation vehicle recall for these vehicles of this make and model advising that you could be killed while driving this car without further recall. I have had other Mercedes benz vehicles and never had this problem. This is a matter of life or death. The car is currently parked at the dealer after inspection.

Filed Aug 20, 2025 · Engine · IL

P052E Check Engine light on. Same part is defective on other models that use the same parts. My car is not included in the recall.

Filed Nov 19, 2024 · Engine · PA

Check engine code PO52E - Positive Crankcase Ventilation regulator valve performance. Needs to be recalled

Filed Oct 28, 2024 · Engine · NJ

I am driving around 55K miles in this car, and my check engine light comes up. I head to a local place to get a code check. The guy looks it up and tells me this is pretty much with EVERY Mercedes CLA around that mile point.. So, I look up on reddit and other forums, and it's exactly what he said. Pretty much the PCV valve is faulty and costs around $1800-2500 to fix after 50-60K miles which causes emission problems and other safety concerns if not taken care of. It makes no sense how this is not a recall. Of what I read, Mercedes knows all about this and has done nothing, just leaving the drivers to take care of a problem that they did nothing to cause. I am not sure if this is for the federal safety agency or what, but it is kind of unacceptable.

Filed Jan 9, 2024 · Electrical · FL

The cluster panel lights that indicate speed, fuel, brakes, lights, turn signal, engine light, high beams and all other components of safety of car continue to black out altogether or flash on and off continuous while driving. Safety is an issue if your driving and cluster panel blacks out. You do not know the speed your driving at and no turn signals work. The problem was reported to Mercedes and the software was reset. The problem continues to happen while driving and is dangerous on highways as speedometer and turn signals do not work. Gas gage spins from full to empty and brake and engine lights flash on and off or cluster again goes black. There are or have never been warnings. While driving it just happens. This has been happening on and off for a few months. Mercedes does not know the cause.

Filed Jul 10, 2023 · Engine, Fuel system · 118,000 miles · GA

The contact owns a 2018 Mercedes-Benz CLA250. The contact stated that coolant was leaking from the engine with the check engine warning light illuminated. The vehicle was taken to an independent mechanic where the mechanic replaced the coolant reservoir cap. Several months later, the warning light re-appeared, and the contact topped off the coolant level and the warning light disappeared. Recently, the check engine warning light illuminated and took the vehicle back to the independent mechanic. The vehicle was diagnosed with a defective fuel injector and the contact was referred to the manufacturer for assistance. The contact was informed that the vehicle was not under recall and was referred to the federal safety agency Hotline for assistance. The vehicle was not repaired. The failure mileage was approximately 118,000.