10.0

really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
4 / 0
Average Mileage:
17,759 miles

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« Read the previous 20 complaints

problem #9

Jul 032021

C300

  • miles
driver door handle is loose

- Orlando, FL, USA

problem #8

Jun 082022

C300

  • 158,000 miles
I recently noticed a noise coming from the left rear side os the car when I would go over the slightest bumps. I was scheduled to have my breaks replaced and when the auto was on the lift, the mechanic noticed that the frame was cracked. The auto has never been involved in any serious accidents. I did some searching on Mercedes Benz forums and there are several references of similar occurrences. Those reporting the issue after visiting a dealer have hinted it's a known issue and caused by Winter weather. This doesn't seem reasonable for a car that is not new, but after 11 years shouldn't be happening. I am needing to proceed w/ the repair as the car has many more years of use, but would like to report this issue and if determined to be subject to a recall, be compensated for the whole/partial cost of any reasonable repair costs. Kind regards,

- Secaucus, NJ, USA

problem #7

Apr 062022

C300

  • miles
This car was taken to a local Mercedes Benz dealership for repairs. Upon inspection, the dealer ship stated that the rear subframe was rusted on the vehicle and it was not safe to drive. Typically, frames do not rust out in 11 years and 110,000 miles on the car. I called Mercedes Benz to ask about this problem and their customer service representative immediately asked if this was the rear subframe. This tells me that Mercedes Benz has had numerous calls about this issue before. The Service Advisor at Germain Mercedes Benz stated that he had seen this issue on multiple occasions. We went to an independent service shop for a second opinion and they also stated that they had made this repair on this model of car. We have a strong suspicion that Mercedes is aware of this problem and has done nothing with it.

- Grove City, OH, USA

problem #6

Oct 292021

C300

  • miles
I was told by the Service Department at the Fredericksburg, Va Mercedes Dealership/Service Department on October 29, 2021 that the Rear Sub Frame had rusted out and needed to be replaced. This apparently affects the basic functioning/stability of the car, handling, alignment and breaking. This is apparently an "known" issue with this car and was recalled in Canada, but not the USA. The car was inspected for Virginia registration/etc. in July 2021, so I am not sure when this defect became "obvious". However, I was told in April/May 2021 during basic maintenance that the breaks were wearing unevenly. I cannot provide a specific date of exactly when the car was not "handling properly".

- Fredericksburg, VA, USA

problem #5

Sep 222021

C300

  • miles
Rear subframe broke off.

- West Nyack, NY, USA

problem #4

Jul 162021

C300

  • miles
On July 1, my daugther who is driving the car since about 8 months noticed a strange noise coming from the rear of the car. Since I was in Europe at that time I could not give her any assistance. On July 16 we both took a drive to Rhode Island to visit a college. I was the one driving, and I could also hear the noise coming from the rear. On the highway there was a back-up developing and I had to hit the brakes a littler harder. In doing so. the car was very unstable and it look like if the rear was going to overtake the front of the car. I was very scary even for myself who is a long time experience driver. After returning home I took the car to a mechanic and have him look at it. The resulting diagnosis revealed that the subframe was completely rusted out and was about to get disconnected from the under carriage of the car at any moment. The mechanic had a hard time to find a replacement part, and was finally able to locate an OEM subframe in California, the only one in the US. The price for the part alone was $1,500. I had no choice other than to have the car repaired at the mechanic since it was at that time undrivable. The total repair was almost $3,200. I took 2 pictures of the replaced subframe (see attached). The car is a 2011 MB C300-4-matic with just 100,800 miles on it. The was purchased used, with about 12,000 miles, in Febr. 2012 from Mercedes Benz of Westford, MA, which had used the car as a loaner/company car. The car was well maintained, used up until 2020 by my daughter's mother. She then bought herself another, newer C300 (2017 model) and decided to gift her older car to the daughter instead of trading it in. We thought, we knew a lot about the car and considered it a low risk transfer for a new, still learning driver. I will also file a formal complaint with Mercedes Benz if I have figured out the correct contact point. The internet shows, other people have experienced similar situations. And eventually, see also your ID-# 10504684 and 11023618.

- Middleton, MA, USA

problem #3

Oct 282019

C300

  • 105,000 miles
Rear suspension control arm rusts off of the subframe. No other rust on the car. During braking the car steers hard to the right almost causing an accident

- West Nantmeal, PA, USA

problem #2

Aug 122015

C300

  • 47,000 miles
This is a well documented accident as it involved a police chase of a felon who ran a red light at approximately 50 mph. My car was hit on the left front side and is deemed totaled. No air bags deployed in my vehicle and I required emergency Transport to the local hospital emergency room. This also involved a police shooting incident with the death of the other driver. The vehicle is pending towing to a salvage yard.the primary concern is a question of defective air bag deployment and future potential injury to others.

- Moraga, CA, USA

problem #1

Jan 212015

C300

  • 35,000 miles
The passenger side of the car got flooded with water. The dealership found that the leak was from the right side sunroof drain and that they would have to remove the headliner and passenger side interior carpeting to access the affected areas. The $795 estimate ballooned to $1600 when they said that the seating would have to be removed to remove the entire carpet because there was more water that had gotten into the car than they originally thought! this sounds like a design defect in this vehicle! this could be dangerous with the electric power and heated seats!

- Lodi, NJ, USA