There are 3 stored owner reports matching the suspension leading-label group for the 2017 Mercedes-Benz C-Class in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)In October 2024, the rear subframe was replaced due to rust perforation in the area of the suspension arm mounting bracket. I had no warning. The car was in for routine service at Mercedes Benz of New London. It had rusted from the inside out and was considered unsafe to drive by the Mercedes service advisor. I could have had a serious accident! I had no choice but to replace the subframe as it is my only vehicle. Shockingly I learned many others have had this issue with various Mercedes models/years and that Mercedes Benz knows of this serious safety problem and there is a class action lawsuit pending but subframe replacement is not covered under warranty by Mercedes Benz, so the cost was mine to bear.
The car was parked on my driveway, As soon as i started it, I got a message 'The electronic rear axle differential lock is inoperative' NHTSA previously issued a recall for 2017 C63s AMG models. I purchased this vehicle from Carvana in April 2021 with clean single owner carfax. The manufacture warranty has expired. I have seen lots of posts on Mercedes forum talking about this issue where Mercedes did fix the issue free of cost. Since there is no open recall on my vehicle, I am not sure what to do.
CAR IS MAKING WEIRD NOISES FROM THE FRONT ELECTRICAL AC SIDE- IT IS HARD TO BREATH AC AIR (SMELL LIKE PLASTIC) . PRESSING BRAKES CAR IS HANDLING BAD AND GOES SLIGHTLY INTO OTHER LANE. I TOOK CAR TO DEALER- THEY COULD NOT FIND THE PROBLEM
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.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 31, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.