2010 Mercedes-Benz C300 suspension problems

Related recalls

No recalls on file.

What owners say

1. Filed Sep 10, 2025MAAirbagsSuspensionWheels & Tires

   Due to the corrosion in the rear subframe both side of lower control arms snapped the tires to the car are wearing out due to the corrosion in rear subframe and it’s was also hitting my gas tank if I was to go over any holes which can cause a bigger issue

   NHTSA complaint #11686271 · source
2. Filed Sep 10, 2025MAAirbagsElectrical SystemSuspension

   Got a car from the dealer soon weeks after the rear subframe was so corroded alignment was able to get done and was snapped on both sides airbag light came on doesn’t go away and the rear right brake like started using the fog light as a turn signal

   NHTSA complaint #11686269 · source
3. Filed Jan 31, 202563,000 miNYBody & StructureSuspension

   The contact owns a 2010 Mercedes-Benz C300W. The vehicle was taken to the dealer for an alignment. The contact was later informed that the wheel alignment was not fully completed due to extensive corrosion on the subframe. The contact picked up the vehicle and upon investigation discovered that there was a warranty on the vehicle for the corrosion of the subframe. An appointment was scheduled, and the vehicle was taken to the dealer where it remained for two weeks. The…

   NHTSA complaint #11639841 · source
4. Filed Jun 29, 2023MASuspension

   Rear Sub-Frame Failure almost caused a head on collision at slow speed. Hit brakes and my car fishtailed completely sideways.. - Many many complaints similar to mine on same issue, all on Mercedes C300. Some have reported to this website in hopes for recall and correction by Mercedes. It is extremely dangerous, and expensive to fix. You also do not know there's an issue until too late. Subframe rusting almost from inside out. My control arm fell right out and was hitting the…

   NHTSA complaint #11529638 · source
5. Filed Mar 31, 2023VASuspension

   the rear subframe is rusted out and this is a big saftey concern by mercedes benz for 2008-20014 and they know the problem as there are alot of complaints. there were recalls in europe for this and not in USA. This needs to be taken care of by Mercede-Benz.

   NHTSA complaint #11514829 · source
6. Filed Mar 17, 2023MDElectrical SystemOther / UnknownSuspension

   Rusted rear sub frame that needs to be replaced. Premature rusting that Mercedes needs to repair at no cost. Also, premature battery drain on new battery. Needs to be fixed by Mercedes at no cost.

   NHTSA complaint #11512388 · source
7. Filed Jan 4, 2023ILSuspension

   The Rear Subframe of the car rotted out, making the car dangerous to drive. This problem has been identified by Mercedes and IS considered a safety hazard in Canada and Europe. This problem should also be covered here in the USA. Unfortunately Mercedes Benz USA will not offer any help here, instead trying to charge customers more than $7,000.00 for the repair. A frame should last the lifetime of a car, especially when the rest of the car has no to little rust on it. The…

   NHTSA complaint #11500082 · source
8. Filed Oct 27, 2022MSSuspension

   The rear subframe of this vehicle is made of faulty materials and has completely rusted out leaving the suspension components which connect to it in danger of failing. The left rear wheel connecting trailing arm has already detached from the subframe. There have been numerous complaints about the 2010-2013 Mercedes C300 W204 rear subframe, many of which share exactly the same failure as my own. It is a known problem with this generation of Mercedes.

   NHTSA complaint #11491240 · source
9. Filed Oct 11, 202290,000 miNJTowedSuspension

   The contact owns a 2010 Mercedes-Benz C300. The contact stated that their wife was driving approximately 60 mph when there was a strange noise coming from the vehicle as well as a shaking sensation. The driver pulled over to the side of the road where the vehicle was towed to their place of work. The vehicle was inspected by the tow truck mechanic who stated that the rear-sub frame had severe rust and was the cause of the failure. The contact had not been taken to the…

   NHTSA complaint #11488777 · source
10. Filed Aug 25, 2022OHBody & StructureSteeringSuspension

    Rear subframe completely rusted through resulting in multiple attached systems to break off. When applying the brakes the rear end of the vehicle swings and can force the car into random directions. Upon any basic research this issue can be seen in similar Mercedes models across the globe consistently. If the issue was not diagnosed sooner the likelihood of a fatal crash would have been extremely high due to critical components like braking and suspension systems being…

    NHTSA complaint #11481301 · source
11. Filed Jul 1, 2022VABody & StructureSuspension

    The dealer noticed that the rear suspension subframe had rusted and corroded with a hole. They rejected the passage of the state safety check. A review of online forums shows this is a common problem in these years and Canadian and German counterparts of MBUSA have issued recalls because a third party supplier provided the parts without sufficient corrosion protection. See eg. https://mbworld.org/forums/c-class-w204/805501-rotted-rear-subframe.html

    NHTSA complaint #11472068 · source
12. Filed Jun 27, 2022MESuspension

    The rear suspension cross member has rusted out on both sides. The rear wheels turn during braking, causing the vehicle to swerve. This is a original materials defect or design flaw.

    NHTSA complaint #11471111 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology