Mercedes-Benz C-Class Complaints

3,817 consumer complaints on file.

#11573402February 22, 2024
SUSPENSION, SERVICE BRAKES
While I was driving my 2012 MB C300 4Matic Sport Sedan in Nov', 2023 with history of regular maintenance, noticed a pretty load knocking noise, shudder and drifting to left a bit when it brakes from the driver's rear side especially on the highways. I took it to our local mechanic who was horrified to report that the sub frame was broken and completely rotten out too specifically rust issue with the rear suspension-rear subframe. He gets other German Cars like BMW & Audi even older and more miles in Chicago but none have rusted so much as these MB C-Class cars. Knowing the Dealers wont accept it a manufacturing defect, he was planning to repair it (no chance of wielding that thin metal sheet as the likelihood of breaking it is high). I was surprised to see 2010 Chevy Impala having a much more robust under the cover protection and no rusting with 115k miles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11573072February 21, 2024
AIR BAGS, ELECTRICAL SYSTEM, UNKNOWN OR OTHER
The sam box (electrical system fuze panel) located under the hood is in a spot where if the lid isn't on correctly water will drain from the windshield right into the sam box and cause the vehicles electrical system to deploy the steering wheel airbag. That's at least what happened to me. It was raining out that day and I guess I went over a bump that caused the lid of the sam to get out of place. I drove home and the car seat for a few hours. I went out upon unlocking the door as soon as I pulled the handle to open the driver side door the steering wheel airbag blew and the vehicle is now in srs mode. The dealership had told me that it's a design flaw but wants me to pay for the diagnostic. No lights were on and I did not file a police report.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11573093February 21, 2024
STEERING
Electric power steering lost power and failed while driving on drive way. The steering became very difficult to turn and the car became very hard to control if not impossible. If it had failed while on the road with other cars, especially while turning, the car could be in a crash with serious accident that could have injured me and others. The problem was reproduced by the dealer. The dealer examined the car and steering components and has confirmed that the electric power steering rack failed. There was a recall done (17V243000) some time ago, however, my VIN is not included in the recall. The problem that my car is having is exactly the same as is described in this recall, 17V243000. It seems that more cars are having this same issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11573103February 21, 2024
ENGINE
P502e code crankcase ventilation failure
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11573226February 21, 2024
UNKNOWN OR OTHER
Positive Crankcase ventilation regularly Valve. This issue is in so many c300s and should be recalled for that reason.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11572922February 20, 2024
ENGINE
Positive crankcase ventilation regulator valve performance
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11573044February 20, 2024
ENGINE
I have 33,000 miles on the vehicle and the check engine light came on. The code P052e came up Positive Crankcase Ventilation Regulator Valve Performance. I’m reading that many people have the same issue but there is no recall. Is there anything that can be done?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11572690February 19, 2024
UNKNOWN OR OTHER
Took my 2012 Mercedes c300 to my mechanic and the Rear Sub frame is rusting out.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11572697February 19, 2024
SUSPENSION, POWER TRAIN
vehicle sub-frame is cracked rusted corroded.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11572703February 19, 2024
UNKNOWN OR OTHER
My car has been identified as having the subframe corrosion issue and is on the list by date and model, but Mercedes Benz will not honor the warranty because my car's VIN is not on their list.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11572718February 19, 2024
ELECTRICAL SYSTEM
The sunroof locked open during a road trip. I am mechanically inclined, so adding lubricant and driving through a low pressure air front caused the sunroof to shut. Had I been in an emergency, not mechanically inclined, or if this happen during inclement weather or to a little old lady this would have been a severe issue causing the vehicle to become inoperable due to rain or snow entering the cabin and reducing visibility, and damaging the electronic components in the vehicle's cabin. This is also a safety hazard to the the drivers health in conditions of smog, extreme low temperature, animal attack or if there was an assault from a criminal with ill intentions.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11572383February 16, 2024
ENGINE, ELECTRICAL SYSTEM, UNKNOWN OR OTHER
Crankcase Ventilation Valve Emission Modification -Error P052E71 -Error P06DA00
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11572056February 15, 2024
SUSPENSION, SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT
The contact owns a 2023 Mercedes-Benz C43 AMG. While driving into a parking lot at a very slow speed, the braking system suddenly activated, and the vehicle shut off. After restarting the vehicle, the messages "Rear Axle Malfunction", "Active Braking System Limited" and "Inoperative" were displayed. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure. The failure mileage was 5,600.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11572113February 15, 2024
STRUCTURE:BODY
I took my car for service "B" at the dealership. They told me the rear subframe is rusting and there is a hole forming already. Apparently, this is a known problem that Mercedes Benz provided warranty extension up to 20 years with unlimited mileage. However, they stopped at 2015 models. Mine was bought from the same dealership in October 2015, but it is a 2016 model, but actually has the exact same problem earlier models have and they cover with their voluntary extended warranty. I am told to replace it, it will cost at least $4600. They are refusing to cover it under warranty because I my car is at around 60,000. The car did not even reach 100K and well maintained, but has rusted frame already that can be a serious safety hazard according to Mercedes Benz associate.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11571637February 13, 2024
STEERING
The contact owns a 2017 Mercedes-Benz C300. The contact stated that while starting and driving the vehicle, the electric power steering was inoperable. There were no warning lights illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The contact stated that the failure was related to NHTSA Campaign Number: 17V243000 (Steering). The failure mileage was approximately 25,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11571785February 13, 2024
ENGINE
Error code PO52e crankcase ventilation
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11571578February 13, 2024
SUSPENSION, STEERING, STRUCTURE:BODY
Non operating. No tags . No plates.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11571422February 12, 2024
VISIBILITY:SUN/MOON ROOF ASSEMBLY
The contact owns a 2016 Mercedes-Benz C300. The contact stated that the adhesive bonding on the front panel of the sunroof had failed, and the panel detached from the vehicle and the sunroof could no longer be opened. The cause of the failure was not yet determined, and the vehicle was not repaired. The manufacturer was contacted and informed the contact that the VIN was not included in NHTSA Campaign Number: 21V197000 (Structure). The contact stated that the vehicle had experienced the failure listed in the recall. The local dealer was not contacted. The failure mileage was 52,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11570780February 8, 2024
VEHICLE SPEED CONTROL, SEATS, EXTERIOR LIGHTING
When starting car you can smell gasoline the smell stays while driving
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11570616February 7, 2024
UNKNOWN OR OTHER
There are Water intrusion that happened to other Model of Mercedes, my car have the same problem, when i bring it to the Mercedes dealer, they found a lot of water inside the trunk, but they insisted that I had accident, but there no accident that I know of.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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