*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Unknown or other
Roof Panel flew off on highway, not safe for anyone if this happens can cause accidents. It is available for inspection. This incident has happened to other cars of my same make and model and has been confirmed.
Aug 18, 2026Unknown or other
Panel flew off on the highway it was terrifying.
Aug 18, 2026Air bagsCrash1 injury
After a hard impact car continued to go then when came to a stop the air bags deployed which resulted in injuring my left arm
Jul 9, 2026Structure › Body
Water coming into the car through the floor
Jan 1, 2023Electrical system › Instrument cluster/panel
The instrument cluster gauges start giving in accurate information and the whole dash start turning on and off. I found hundreds of people posting complaints about this issue with the 2018 mercedes cla 250 but mercedes refuses to acknowledge this issue and put out a recall probably out of greed and to not loose money. This is a dangerous issue. Mercedes wants to charge people appropriately $3,000 for parts and labor to fix this issue which is ridiculous. Please look into this. There needs to be a recall. This is dangerous especially for the people that cant afford this repair.
Feb 23, 2026Engine
Corrosion of the fuel system (on a Flex Fuel rated vehicle that had used E85 blend regularly) causing sudden loss of power, misfires, lack of acceleration The vehicle experience sudden loss of power, multiple misfires, and potential damage to the engine. Had the vehicle been on the highway or attempting to merge with traffic this could have resulted in an accident See attached dealer diagnosis and replacement of multiple fuel injectors, fuel pump, and fuel rail. The dealer service manager stated (but did not document) that this was probably caused by using E85, despite the fact that the vehicle is rated for E85/flex fuel There were no warnings or indications prior to the incident
Dec 24, 2025Electrical system
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…
Oct 22, 2025Air bags
The contact owns a 2018 Mercedes-Benz CLA250. The contact stated that while driving and turning the steering wheel to the left, there was an abnormal clicking sound coming from the vehicle. Additionally, the electrical features on the steering wheel failed to operate as needed. The contact stated that several days later, the same failure returned with air bag and a "Front Left Malfunction - Service Required" message displayed on the instrument panel. The contact spoke to her mechanically inclined brother and was informed that the failure was likely related to a defective clock spring. Upon investigation, the contact discovered NHTSA Campaign Number: 17V627000 (Air Bags) ,which the contact…
Oct 31, 2025
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.