Mercedes-Benz C-Class Complaints

3,817 consumer complaints on file.

#11471564June 29, 2022
STRUCTURE:FRAME AND MEMBERS
The contact owns a 2013 Mercedes-Benz C300. The contact stated that the vehicle had previously been serviced by an independent mechanic for brake pads and rotor replacement; however, the failure recurred with noises coming from the vehicle while driving. The vehicle was taken back to the mechanic, who diagnosed that the rear subframe was severely corroded and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 80,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11471458June 28, 2022
ENGINE, FUEL/PROPULSION SYSTEM
Diagnosis code P052E PCV regulator valve replacement/crankcase replacement. Dealership does not want to acknowledge code while car was under warranty despite proof that it existed when check engine was diagnosed. Now code keeps coming back with check engine light on dashboard. To replace part, the engine has to be taken down since the crankcase is inside the engine. This is a malfunction during assembly/manufacturing, it is impossible to damage part while under usage. Mercedes Benz should be held responsible for part replacement and labor. I urge you to investigate this matter with other clients and ask the manufacturer to replace part and pay for labor.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11471103June 27, 2022
STEERING, WHEELS
I needed new tires and the tire dealer reported that my subframe is rotted bilaterally. He suggested I do not invest in tires until it is replaced and to notify Mercedes as there may be a recall. This defect caused instability of the frame that secures the tires. The safety risk should go without saying. Any rotted structure that supports the car and/or secures the tires is an obvious safety risk. After reading the multiple complaints posted under “structure” for this make and model, it appears that yes, this problem has been reproduced and confirmed by other owners and mechanics. I am presently picking up my car from the tire dealer and driving it directly to the Mercedes dealership…so they will be aware and able to inspect it. There were no warnings or alerts that my subframe rotted. I do not believe this is something that could be measured with a sensor to trigger an alert electronically.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11471111June 27, 2022
SUSPENSION
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11471178June 27, 2022
SUSPENSION
Vehicle inspection during oil change has revealed that the vehicle has a broken rear subframe. Apparently this is a common problem in Mercedes C300 vehicles, which are subject to recall for this issue in Germany and Canada. Vehicle report here (with video of broken subframe): https://xoxocar.com/inspection.aspx?inspectionid=9e225031-77b5-4304-8ec1-a10c859b90f0&print=true
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11470665June 23, 2022
ENGINE
P052E emissions code
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11470493June 22, 2022
UNKNOWN OR OTHER
Rear Subframe Rot- this seems to be a common and known issue with Mercedes’ that should be a recall. Yet Mercedes is charging almost $6000 to get this fixed at the dealer. Plus the parts are on back order for months. This is causing cars to sway when stopping. This is definitely a hazard and should be addressed ASAP!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11470521June 22, 2022
SUSPENSION
My 2014 Mercedes C300 4matic currently has a rusted through rear subframe. I know this has been reported to your Bureau numerous times by various people. This affects all 2008-2014 C Class and E Class Mercedes (as I used to work for a Mercedes dealer). Mercedes is trying to avoid liability at the sheer cost and man hours required to replace these parts. This is a MAJOR safety hazard, and has caused numerous drivers to lose control of their vehicle when they do in fact break off at one of the weld joints. The car is 8 years old with approximately 90k miles. This is a STRUCTURAL part of the car, and should never have to be replaced. Subaru dealt with suspension recalls on their vehicles, and I believe Mercedes should be reliable as well. Thousands of these cars are a ticking time bombs on the road. This issue was confirmed by my personal mechanic, and he stated this will not pass the next inspection (luckily I have 6 months left).
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11470185June 21, 2022
SUSPENSION, STEERING
Car with just 130,000 miles needs significant subframe and related parts replaced. There are countless discussion boards of similar failures across Mercedes Benz car lines. The estimated cost of repairs at the dealership exceeds $5000 just for subframe work. When braking the car veers to the left and the right end tries to swing around. Again, this is noted on multiple discussion board. MB has consistently demonstrated negligence in addressing this as service advisers state this is not uncommon and is seen often. A recall/replacement is warranted.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11470263June 21, 2022
STRUCTURE:BODY
Rear subframe corrosion hast rusted through and the subframe is no longer attached to the lower control arm car has only 56k miles this has been recalled in Canada and the issue needs to be addressed in the us it is a safety issue
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11469275June 15, 2022
STRUCTURE:BODY
Corrosion of sub frame. Vehicle is available for inspection upon request. June 7, 2022 Viti service advisor reports rust hole in sub frame. Putting the safety of myself and family members at risk. Due to corrosion deteriorating the structural integrity of the sub frame. Sub frame could break causing catastrophic accident. Loss of control, rollover, fire, puncture fuel tank, etc. This appears to be a well known defect and is recalled in Canada. Vehicle was purchased and serviced at Viti from 2010 to present. Garaged. Vehicle has not been inspected by police, insurance presentative or others. There were no warning lamps, messages or other symptoms of the problem prior to the failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11469155June 14, 2022
BACK OVER PREVENTION
The contact owns a 2020 Mercedes-Benz C300. The contact stated that suddenly the vehicle's sensors were illuminating and activating a warning stated that the sensors were defective. Many of the vehicle's sensors began to deactivate and malfunction. While reversing out of a parking space the rear view camera and sensor system failed causing the contact to crash into another vehicle. Both vehicles were damaged. A police report was filed. There were no injuries reported. The vehicle was not towed. The contact took the vehicle to a repair facility and stated that there was damage to the internal sensor and camera system. The contact took the vehicle to the dealer however the vehicle had not been diagnosed or repaired as of yet. The contact then received a recall notice NHTSA Campaign Number: 22V232000 (BACK OVER PREVENTION) however the VIN tool confirms remedy not yet available. The manufacturer was not made aware of the failure. The approximate failure mileage was 3,000.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11469189June 14, 2022
AIR BAGS
The contact owns a 2017 Mercedes Benz C300. The contact stated while driving at a slow speed in traffic, another vehicle rear-ended and caused her to crash into the vehicle in front. The air bags did not deploy. The contact sustained injuries to the back of her head, her left shoulder, right wrist, and right arm along with chest pains and facial contusion. The contact sought medical attention at an emergency room. A police report was filed. The vehicle was not drivable. The contact towed the vehicle to her residence. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was approximately 57,000.
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#11469200June 14, 2022
SEAT BELTS
Mercedes-Benz C-Class convertibles from the 2017 to 2021 model years are being recalled because the seat belts might not comply with federal Occupant Crash Protection standards. The problem is that the front seat belts might not fully retract to their stowed position because of the geometry of the front seat belt retractor. The dealers are refusing to fix this issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11469245June 14, 2022
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
The contact owns a 2013 Mercedes-Benz C250. The contact stated while driving 60-65 MPH, the vehicle stalled inadvertently. There were no warning lights illuminated. The contact was able to restart the vehicle and continued driving. The contact stated that the failure had occurred twice while driving. The vehicle was taken to the dealer where it was diagnosed that the high-pressure fuel pump needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 143,775.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11469002June 13, 2022
STRUCTURE:FRAME AND MEMBERS
The contact owns a 2011 Mercedes-Benz C300. The contact stated that while the vehicle was at an independent mechanic for a brake inspection, the mechanic informed him that the subframe was corroded, causing the vehicle to fishtail while braking. The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to file a complaint with the NHTSA. The failure mileage was approximately 108,500.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11469029June 13, 2022
ELECTRICAL SYSTEM, STEERING
I own a 2011 C300. Recently, my car suddenly stopped working while I was attempting to leave somewhere away from my home. It would not crank or turn over/start. So I was completely stranded, and in the extreme Florida heat. There has been no damage or wreck to cause this. There were also no warning lights or symptoms in my car beforehand. My car was towed to a Mercedes Benz dealership in the nearest city. They diagnosed the problem as an electronic steering lock failure. I asked how this happened. I was told that they do not know how it happened. I was also quoted a very expensive repair bill. Upon researching this problem further, I found out that steering lock failure and ignition switch failure is a recurring and common problem that Mercedes Benz already knows about, and many people with my car and similar models have had the same problem over the years. Age of the car at time of failure did not matter, either- it has happened to many cars at different ages and mileage.This is not a normal problem for any car to have, nor is it caused by normal wear and tear. Some people have even had their cars suddenly stop working while they are driving. Many people have also asked why these faulty parts have not been recalled yet. I contacted the company multiple times and did not receive any resolution to the problem. They said that this is my responsibility to repair, and they would not pay to repair this, nor reimburse me. The company's agent did not care at all about the issues, nor take any accountability for them as the manufacturer. Being stranded in the middle of nowhere at any time is dangerous for anyone, especially in certain areas or during intense weather. This entire issue has caused extreme stress for me- interruption in my schedule, lack of transportation, and financial loss. Please hold the Mercedes Benz company accountable for their lack of proper manufacturing and lack of proper repair to their parts that they know are faulty. Thank you.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11469043June 13, 2022
UNKNOWN OR OTHER
The rear subframe has failed. I have felt some swaying and decreased control when driving the car at higher speeds especially when braking and taking curves. My safety has been put at risk as the wheel could go out and cause an accident. I brought the car to the mechanics at Goodyear as I thought it was the brakes. They informed me that the rear subframe was rusted from the inside out and was loose at the left rear toe arm. I am setting up an appointment to get this taken care of. As I am calling, mechanics are letting me know that the subframes are on backorder in the range of months. They say they are seeing this more often. I contacted the dealer and they said they can get a used one and replace it for $5200. I believe that if this is becoming more common where new ones are on backorder and this is obviously a safety issue then a recall should be issued. The car is only 9 years old and is garage-kept. I think that this idea of that type of rust at this point is absurd.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11468798June 11, 2022
UNKNOWN OR OTHER
The rear subframe on my 2012 Mercedes Benz C300 was corroded and broke. This caused the car to lose control and easily could have been been life threatening at high speeds. Mercedes Benz is clearly aware of this issue and knows this is a part defect but has not been willing to do a recall in the US even though they have done so in other countries. The dealership has told me this needs to be repaired as the car can’t be driven, so I am not happy I need to pay $5,000 out of pocket for a part defect Mercedes knows about and refuses to issue a recall even though this problem can cause a fatal accident. There were no warning signs besides hearing thumping sounds and the instability caused by the part defect when it finally failed and broke.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11468584June 10, 2022
STRUCTURE:FRAME AND MEMBERS
The contact's son owns a 2011 Mercedes-Benz C300. The contact stated while his son was reversing, he heard an abnormal noise. The contact stated that the ABS, the traction control, and another unknown warning light were illuminated. The driver called the contact and made him aware of the failure. The contact took the vehicle to an independent mechanic and was informed that the rear subframe was fractured. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was 119,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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