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What 44 owners told NHTSA about the 2018 Mercedes-benz CLA

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (44)Crash / fire / injury (2)Electrical system (12)Engine (9)Airbags (7)Body & structure (6)Transmission & drivetrain (4)Fuel system (3)Communication (2)Seats (2)Steering (2)Electronic Stability Control (esc) (1)

2 of 44 complaints match · Steering · clear filters

Feb 8, 2025SteeringAirbags

My car clock spring has went out, and it affects my car airbag deploy. I see it’s a problem with the Mercedes Cla250. It’s very dangerous it causes your horn not to work as well!

NHTSA ODI 11641460

Sep 3, 2021SteeringSuspension

The contact owns a 2018 Mercedes-Benz CLA250. The contact stated while driving at various speeds, there was a ticking sound coming from the steering wheel. Additionally, there was a knocking sound coming from the front end of the vehicle. The vehicle was taken to the local dealer who diagnosed that the control arms were faulty and needed to be replaced. The control arms were replaced but the failure persisted. The manufacturer was also notified of the failure. The failure mileage was 27,000.

NHTSA ODI 11431596

Working with the data? Download all 44 complaints as CSV · fetched from NHTSA July 19, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2018 Mercedes-benz CLA verdict →