Mercedes-Benz C-Class Complaints

3,817 consumer complaints on file.

#11652172April 1, 2025
SUSPENSION
Recently my Mercedes has been pulling and swaying to the side while breaking even at low speeds.Yesterday I got my 2 front tires replaced and asked them to take a look at what could be causing my rear end to pull.When I returned to pick up my car they informed me my rear subframe was completely decayed/rusted through and not safe to continue driving.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11651700March 31, 2025
SEAT BELTS
Passenger seat belt doesn’t lock properly sometimes comes out and is very hard to put in on entry of vehicle
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11650695March 26, 2025
STRUCTURE:BODY
Rusted rear subframe, dime size hole discovered by Mercedes technician on [XXX]. The Mercedes dealer who discovered it was Mercedes Benz of Fredericksburg, VA. 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
#11649919March 22, 2025
ENGINE, ELECTRICAL SYSTEM
Check Engine Light on, I read the code is P052E, after read some information in internet there is positive crankcase ventilation regulatory valve needs to be replaced. My car is 52000 miles and it seems like happenned to people even with less miles on the cars
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11648959March 18, 2025
ELECTRICAL SYSTEM
The contact owns a 2013 Mercedes-Benz C300. The contact stated that while attempting to start the vehicle, the vehicle failed to start. The contact stated that after several attempts, the vehicle started. The security alert warning light was illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the anti-theft module had failed and needed to be replaced. The vehicle had not been repaired, and the failure persisted. The manufacturer was not informed of the failure. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11648766March 17, 2025
FUEL/PROPULSION SYSTEM, ENGINE
Po52E71- Emissions issue with crankcase. Mercedes implemented an extended warranty on various models but excluded 2019 C300, which definitely has the same issues. See below in reference to previous models. IMPORTANT EMISSION EXTENDED WARRANTY INFORMATION In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (“MBUSA”) is extending the warranty coverage on the intake line assembly in certain Model Year (“MY”) vehicles listed below from the original New Vehicle Limited Warranty of 4 years/50,000 miles to 15 years/150,000 miles (whichever occurs first) due to the following condition: • Under certain circumstances, the partial-load ventilation valve (a part of the intake line assembly) may not work as intended, resulting in the illumination of the check engine Malfunction Indicator Lamp (‘MIL’). A faulty partial-load ventilation valve might also increase exhaust gas emission. Model Model Years Sales Designation C-Class 2015 – 2018 C 300, C 300 4MATIC C-Class Convertible 2017 – 2018 C 300 Convertible, C 300 4MATIC Convertible C-Class Coupe 2017 – 2018 C 300 Coupe, C 300 4MATIC Coupe C-Class Hybrid 2016 – 2018 C 350e E-Class 2017 – 2019 E 300, E 300 4MATIC GLC 2016 – 2019 GLC 300, GLC 300 4MATIC GLC Coupe 2017 – 2019 GLC 300 4MATIC Coupe GLC Hybrid 2018 – 2020 GLC 350e 4MATIC SLC 2017 – 2020 SLC 300 SLK 2016 SLK 300
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11648819March 17, 2025
STRUCTURE
The contact owns a 2015 Mercedes-Benz C300. The contact stated that while driving at approximately 70 MPH, there was a loud clicking sound coming from the panoramic sunroof. The contact stated that the sunroof then became inoperable. The contact became aware of NHTSA Campaign Numbers: 23V854000 (Structure) and 21V197000 (Structure). The dealer was contacted and confirmed that the VIN was not included in the recalls. The vehicle was not diagnosed or repaired. The manufacturer was informed of the failure and confirmed the VIN was not under recall. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 115,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11648255March 14, 2025
STRUCTURE:BODY
I took my vehicle to an independent repair shop for routine maintenance and while there I was advised that the vehicle is suffering from the subframe corrosion issue. I called the manufacturer service center and they took my VIN and said I was not covered under the bulletin. The independent contractor gave me an estimate to get it repaired, however Mercedes doesn’t even have the parts needed in stock as they are backed ordered nation wide. This is our only car and it now I am forced to drive an unsafe vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647581March 11, 2025
VISIBILITY/WIPER, UNKNOWN OR OTHER
Panoramic roof explode sound like a gunshot but the roof exploded
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647724March 11, 2025
VISIBILITY:SUN/MOON ROOF ASSEMBLY
Sunroof is not closing
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647755March 11, 2025
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
All on a sudden the entire screen goes blank. It has happened at least 4 times and each time the service center does some patching and it works for a few month. When it happens, all the safety features are off including reverse camera. Also, no way to set the temperature or turn of the AC. In both cases, it can lead to significant damage. The recent incident happened when I was a very busy area and without any safety feature, the car was pretty much un-drivable.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647340March 10, 2025
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
I recently purchased a 2018 Mercedes C300 and I noticed the rear view camera will not show an image. It mechanically will open and all other cameras are fully functional but the image will not show instead I see a icon of a camera in a red crossed circle. When doing VIN serch on my vehicle I don't see any open recalls. However, I noticed that NHTSA campaign number 22V232000 has recalled this exact issue. Although the report 573 says for it applying to 2019 models but with a production date between 2017 to 2021 vehicles applying. So I believe this recall should also apply to my vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647103March 8, 2025
FUEL/PROPULSION SYSTEM
Smells like gas strong
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11646561March 5, 2025
STRUCTURE:BODY, VISIBILITY:SUN/MOON ROOF ASSEMBLY
I had the sunroof opened and it almost blew off, if I didn’t pull over it would have. I took it to the shop and was told it is a manufacturers issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11646427March 5, 2025
ENGINE, SUSPENSION
The contact owns a 2015 Mercedes-Benz C300. The contact stated that approximately every 6-8 months, the vehicle sputtered while driving at various speeds or while idling. The contact stated that a month after the first failure had occurred, the front end of the vehicle lowered as if the shocks or hydraulic system had failed. The failure had occurred 3 times within a year and a half. The contact stated that after the second failure, the entire vehicle lowered several inches, and at the third failure, only the front end of the vehicle was lowered. The dealer diagnosed the vehicle and determined that the hydraulic pump and the connections from the shocks to the hydraulic pump had failed. The failure reoccurred approximately 8 months later. The vehicle was returned to the dealer who diagnosed the same failure and completed the same repairs. The failure reoccurred approximately 8 months later, and the vehicle was returned to the dealer who was unable to determine the cause of the failure. The vehicle was not repaired. The dealer provided the contact with a loaner while attempting to have the contact trade the vehicle. The manufacturer was made aware of the failure. The failure mileage was approximately 110,000. The VIN was not available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11645144February 26, 2025
POWER TRAIN
I own a 2016 Mercedes Benz c300 4matic 44,000 miles and i started my car to pick my girlfriend up and 3-5 mins into the drive my check engine light popped up i went to get it scanned and code “P052E” came back, I did some research about the part and i come across a forum called MBworld and many others are having this same problem. I ask for a recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11643602February 19, 2025
FUEL/PROPULSION SYSTEM
Fuel tank is leaking at connection between fill tube and tank. Multiple recalls have been issued apparently for similar problems with cars of other years. With less than 1/2 tank, the fuel leak is not as pronounced. With the tank full, the tank drips fuel. Fire department in Riverside was called and confirmed issue. Upon bringing vehicle to Clearwater Mercedes and other mechanics, the problem was confirmed. Dealership says that Mercedes Benz denies that the problem is theirs to resolve. Dealership fixed other issue that was not producing symptoms but stated that the cost to resolve was $5000.00 (about the value of the car at this point).
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11643606February 19, 2025
AIR BAGS, FUEL SYSTEM, GASOLINE:STORAGE:AUXILLARY TANK
The contact owns a 2013 Mercedes-Benz C300. The contact stated that the fuel tank was leaking after refueling. The fuel had leaked out to half tank. The Fire Department was called, but no assistance was provided. The contact stated that there was a puddle of fuel in the driveway. Additionally, the passenger’s air bag warning light was illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the sensor in the module needed to be replaced. The vehicle was repaired. Additionally, the dealer confirmed that the leak was coming from the filler tube entering the fuel tank. The dealer recommended replacing the fuel tank. The vehicle was not repaired. The manufacturer was contacted and confirmed that there were no recalls on the VIN. The failure mileage was approximately 90,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11643426February 18, 2025
ELECTRICAL SYSTEM, EXTERIOR LIGHTING
LEFT TAIL LIGHTS BURNING OUT DUE TO OVERHEATED WIRES
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11643527February 18, 2025
STRUCTURE:BODY
--The sunroof glass suddenly shattered without any prior warning while the vehicle was in driving on the road. Some of the broken glass pieces scattered throughout the interior of the car. --The sudden shattering of the glass roof created a hazardous situation for the driver and passengers. Although no one was injured, we were shocked and initially thought it might be an explosion or gunfire. Additionally, the tiny glass shards is very dangerous. --We have called dealer and they said there might be several similar cases reported. --The vehicle has not yet been inspected by the manufacturer, police, or insurance representatives, but I have called dealer and insurance company. --There were no warning lights, messages, or symptoms indicating a potential failure before the incident. The glass shattered unexpectedly and spontaneously while driving.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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