Mercedes-Benz C-Class Complaints

3,817 consumer complaints on file.

#11506123February 7, 2023
ENGINE
Engine code P052E - PCV REGULATOR VALVE PERFORMANCE. Common faulty Mercedes Benz part integral to the car. Just took in the car to MBSeattle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11505729February 6, 2023
SUSPENSION
Rear left sub frame is found to be broken due to corrosion and rust. Right side is near to be broken. Driving under such condition is very dangerous.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11505784February 6, 2023
AIR BAGS
Takata recall. The contact owns a 2011 Mercedes-Benz C300. The contact received notification of NHTSA Campaign Number: 16V081000 (Air Bags) and 19V010000 (Air Bags). The vehicle was taken to a local dealer for the recall repair; however, the vehicle remained at the dealer awaiting parts for the repair. The manufacturer was contacted and was unable to confirm when the parts would become available. The contact had not experienced a failure. Parts distribution disconnect.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11505704February 5, 2023
STRUCTURE:BODY
Took my 2011 C300 4matic to a local mechanic after I noticed a dramatic pulling sensation to the left after braking. After mechanic's inspection, I was informed that the rear subframe was rotted out and that the vehicle is unsafe to drive. I still have the car available for inspection of the rear subframe. The rear subframe caused the pull to the side under braking, which alone could cause an accident. Since it also connects the suspension to the frame of the car, at any point a critical suspension component could break off from the subframe, likely causing total loss of control of the car and potentially an accident. I also took the car to a Mercedes-Benz dealership where they confirmed that the rear subframe would need to be replaced and that the car was not safe to drive. I contacted Mercedes-Benz corporate, but received no support. I was only informed that they are aware of this issue, but they will not assist in any way since there is no recall issued. I provided them with copies of the quote from the dealership.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11505594February 4, 2023
POWER TRAIN
Car randomly goes into neutral despite being in D drive mode. Often at stop light, after the light turns green, the car revs up but is not in gear despite in 'D' drive. I have to shift to park or turn car off then on to get it to go again. This has happens multiple times since new. This is very random and distressing when it happens. Car has been evaluated multiple times at the dealership. There are no trouble codes thrown. The car otherwise works and has no other problem. The technician (off the record) told me there is a known issue when he contacted Germany. Official response to me is that it is perfectly fine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11505351February 3, 2023
SUSPENSION
Rear Subframe control arm broken and rusty and dangerously to drive and Mercedes refused to make it as recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11505413February 3, 2023
ENGINE
My check engine light came on at about 68,800 miles. The OBD code shows that I need the Positive Crankcase Ventilation valve replaced. The repair for this is approximately $2,300 and requires about six hours of shop labor, and the part costing over $425. I’ve never known a PCV replacement on any vehicle to be more than $60, with the part itself being about $10-$20. Most times, the part can be simply cleaned and replaced. This is very disappointing. Especially given that the engine design, just two years prior, would have been less than $200 for the same repair, with part costing about $60. The vehicle does not show any symptoms of the part being blocked, as indicated in the code. There is no hesitation, loss a power or decline in fuel efficiency. However, the engine light cannot be turned off until the part is replaced. I think that $2300 to replace a part on seven year old car, well under 100,000 miles is indicative of either poor design or predatory. Hopefully, something can been done to address this. Thank you!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11505118February 2, 2023
STRUCTURE:FRAME AND MEMBERS
The contact owns a 2012 Mercedes-Benz C300. The contact stated while driving at various speeds, the rear end of the vehicle was shaking and vibrating abnormally. While the vehicle was in for routine maintenance, it was discovered that the rear subframe was severely rusted. The cause of the failure was not determined. The vehicle was not yet repaired. The manufacturer was not notified of the failure. The failure mileage was 65,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11505253February 2, 2023
VISIBILITY:SUN/MOON ROOF ASSEMBLY
The contact owns a 2016 Mercedes-Benz C300. The contact stated that the sunroof failed to open. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure and advised the contact to file a complaint with the NHTSA Hotline. The failure mileage was approximately 65,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11504955February 1, 2023
FUEL/PROPULSION SYSTEM
Strong smell of gasoline on a daily basis for 3 months. Took vehicle to mechanic's and was informed that the fuel lines were leaking. Was shown the cracked lines.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11504976February 1, 2023
STRUCTURE:FRAME AND MEMBERS
The contact owns a 2011 Mercedes-Benz C300. The contact stated while driving at approximately 55 MPH and slowing for traffic, the rear end of the vehicle started to drift to the right. The contact heard an abnormal sound coming from the rear driver’s side of the vehicle. The contact stated no warning light was illuminated. The contact had driven the vehicle to a local dealer, where it was diagnosed and determined that the entire rear subframe needed to be replaced due to extensive corrosion. The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 85,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11505048February 1, 2023
POWER TRAIN, ENGINE, STEERING
Electronic steering locks are failing in these cars at an alarming rate. When it fails, the car will be stranded or if driving the car will completely lock the steering and take away control from the driver. This is a safety issue that Mercedes should be recalling and fixing because it will take people's lives away. Mercedes is aware of this issue but is failing to recall it and considering it as non-safety. When manufacturing the Electronic Steering lock, Mercedes used cheap parts that are prone to failure. This issue affected many years and models of their cars but only recalled a few cars. Once failure occurs, the car will not start and it will be required to tow it to a dealership where repairs over $2000 will be needed to fix this SAFETY issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11504641January 31, 2023
ENGINE
Crankcase Ventilation Valve malfunction at under 50k. Check engine light is on and I took it into the shop after gas fumes were coming into the car through the ventilation system. I was informed that has been an ongoing issue with Mercedes and I was referred to fill out this document to try and kickstart a recall process. This is a problem that is very costly, and seemingly is happening to most recent models at around the 50k mark. Beyond that is is also a safety hazard as it is causing gas fumes to enter the cabin of the vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11504374January 30, 2023
STRUCTURE:FRAME AND MEMBERS
The contact owns a 2013 Mercedes-Benz C300. The contact stated that upon taking the vehicle to the dealer for routine service, he was informed that the subframe was corroded. The contact also stated that while driving at highway speeds, the rear of the vehicle was shaking while depressing the brake pedal. There was no warning light illuminated. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 80,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11504516January 30, 2023
SUSPENSION
The left side of rear subframe has rusted out. The right side had been repaired by welding by a previous owner. The damage is still present and can be inspected. The broken bracket is right next to the gas tank and can possibly contact or dent the tank during a hard break or collision. This is a common problem with many people expressing this online and at the 3rd party repair shops. No warning signs were present until the bracket snapped. Extensive rust and corrosion around the area, specifically on the inside of the subframe.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11504526January 30, 2023
STRUCTURE:BODY
SUB FRAME ON MERCEDES HAS RUST ISSUE, RUSTING FROM THE INSIDE OUT AND IS VERY DANGEROUS. I ONLY FOUND OUT BECAUSE I GOT NEW TIRES. ONLY 70K ON THE VEHICLE
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11504289January 29, 2023
UNKNOWN OR OTHER, STRUCTURE:BODY
This is 2018 Mercedes Benz - C300 and it seems across this model line up and models from that year it looks like headliner particularly fabric starts to separate from the pillars in the rear. Across google there is bunch of C300 with the same issue in the same spot starting. The Car is only 5 years old and if it would be any other brand I would not be to upset about it. But this is Mercedes and they pride themselves of being a " Luxury " Vehicle where their standards should be much higher. Needles to say we contacted and went to one of the Mercedes Dealership that we got charged $226 for the inspection and Mercedes did not honored to replace the defect nor MBUSA - did not helped either. This is the problem across the model . Be AWARE and take this into consideration when thinking of purchasing this particular model year C300.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11504326January 29, 2023
SUSPENSION, EXTERIOR LIGHTING
car not able to be driven rear subframe had completely rusted out and rear light housing is burn
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11504121January 28, 2023
ENGINE
In my family we have 2 mercedes benz cars one 2017GLC300 and other 2017 C300 4matic and both of the cars have the same issues. Check engine with code P052E. And after talking to friends and mechanics it appears that this issues to be almost on every mercedes car of this engine since both of the cars that are in my family have the same engine components. I request that it should be recall so mercedes benz will repair those issues under warranty. Thank you
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11504245January 28, 2023
STRUCTURE:BODY, SUSPENSION, UNKNOWN OR OTHER
When breaking at high speeds, the car feels like I will lose control of it. Has happened a few times and I thought I was going to hit the neighboring car. Took it to a repair shop and found out that the rear driver side subframe Is completely rotted out and the rear control arm is hanging. The car only has about 97,500 miles on it, has not been driven in high salt areas, and doesn’t have any other signs of rust. Two auto body shops have told me this shouldn’t happen on a car with that low mileage, and these cars, Mercedes c300s, are known to have this defect.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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