Mercedes-Benz C-Class Complaints

3,817 consumer complaints on file.

#11434672September 28, 2021
SUSPENSION, STRUCTURE:BODY
The contact's daughter owns a 2013 Mercedes-Benz C300. The contact stated that while driving at various speeds, his daughter lost control of the vehicle upon the depression of the brake pedal. The contact stated that the vehicle would veer off the road without warning. His daughter had taken the vehicle to an independent mechanic who informed her that the subframe had severe corrosion. The manufacturer was notified of the failure and informed his daughter that they could not offer any assistance. The vehicle had yet to be repaired. The failure mileage was approximately 150,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11434435September 26, 2021
UNKNOWN OR OTHER, ELECTRICAL SYSTEM, SUSPENSION
The car was parked on my driveway, As soon as i started it, I got a message 'The electronic rear axle differential lock is inoperative' NHTSA previously issued a recall for 2017 C63s AMG models. I purchased this vehicle from Carvana in April 2021 with clean single owner carfax. The manufacture warranty has expired. I have seen lots of posts on Mercedes forum talking about this issue where Mercedes did fix the issue free of cost. Since there is no open recall on my vehicle, I am not sure what to do.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11434323September 25, 2021
UNKNOWN OR OTHER
My car's stationary roof panel (part no. 205-780-00-22) that's located between the windshield and the panoramic sunroof started to come off while driving. The panel started to flick off and I had to tape it temporarily, so it doesn't fly off when driving. It looks like the adhesive holding the panel gave out on the driver’s side. Panel was previously replaced at Mercedes Benz of Tysons Corner.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11434104September 23, 2021
STRUCTURE:BODY
Panoramic Sunroof deterioration, which caused the sunroof to get stuck due to fragments in the sliding area. Sunroof unstable. Unable to ride with it open and makes a whistling sound when closed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11434015September 23, 2021
EXTERIOR LIGHTING
The contact owns 2014 Mercedes-Benz CL250. The contact stated while driving at night the driver’s side headlight became inoperable. Additionally, while using the left turn signal there was an abnormal clicking noise detected. The check left turn signal, driver’s side low beam, running lights and driver’s side parking light message was displayed. Additionally, while driving at night on another occasion, the passenger’s side headlight became inoperable. The vehicle was taken to an independent mechanic and the contact was informed that the gasket had deteriorated, and moisture was in the headlamps. The manufacturer was not notified of the failure. The failure mileage was approximately 62,000. The VIN was not available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11433488September 19, 2021
FUEL/PROPULSION SYSTEM
When the fuel tank is full, there is a strong smell of gasoline at the rear of the car. The gasoline odor is extremely strong on the outside, and very strong on the inside. (This is NOT due to overfill or spillage). I searched some Mercedes-Benz blog sites, and discovered others are experiencing similar problems since 2019 to now. The strong gasoline odor can likely pose a health risk. There is also real concern about potential fire or explosion risks.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11433544September 19, 2021
FUEL/PROPULSION SYSTEM
Raw gas smell after filling up with gas .
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11433168September 16, 2021
STRUCTURE
The contact owns a 2015 Mercedes-Benz C300. The contact stated while driving 50 MPH, the contact heard an abnormal flapping sound coming from the opened panoramic moon roof. The contact reached up into the open moon roof and discovered that the adhesive bonding on the front panel had started to deteriorate. The contact took the vehicle to the local dealer and was confirmed the failure however, the contact was informed that the dealer was not equipped to perform the repair. The contact was referred to Mercedes-Benz of Wilkes-Barre (150 Motorworld Dr, Wilkes-Barre, PA 18702) where the mechanic removed the bonded panel and installed a new front panel which the contact paid for out of pocket. The first dealer then notified the contact of NHTSA Campaign Number: 21V197000 (Structure) and instructed him to call the dealer where the vehicle was repaired. The second dealer was notified of the failure and informed him to call the manufacturer for potential reimbursement. The manufacturer was notified of the failure and informed him that the vehicle was not included in the recall. The vehicle was repaired. The failure mileage was approximately 68,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11433064September 15, 2021
FUEL/PROPULSION SYSTEM, ENGINE, VEHICLE SPEED CONTROL
I was trying to merge onto a freeway from a complete stop and because this freeway has an extremely short on-ramp, you need to get up to a high speed in very little time. As such, I put my car in Sport driving mode and accelerated very hard from a complete stop. The car accelerated as normal for a few seconds (I reached approximately 40 to 50 MPH), then I felt the car lag and felt a loss of power. The car was in limp mode and I couldn’t accelerate even though I was pressing the gas pedal all the way to the floor. A few seconds after this occurred, I notice that the check engine light turned on. I was able to maintain a speed around 50 MPH and got off the freeway. I took my car to both the Mercedes dealership and an independent mechanic and both diagnosed a failure of the high pressure fuel pump. I also tried to see if this will happen again and after hard acceleration in regular driving mode, the exact same issues occurred. I have read that there are issues with the high pressure fuel pump with my car model and I ask that you guys please investigate thoroughly to see if a recall would be necessary. Losing power while accelerating is extremely dangerous and a huge safety hazard for all drivers on the road. I could have easily been rear ended by another driver since I couldn’t accelerate to a faster speed. I have not yet replaced the high pressure fuel pump but plan to do so in the next few days. Attached is the diagnostic invoice from the Mercedes dealership. As stated on the invoice, please note that my car only has 43,000 miles, which makes the high pressure fuel pump failure very surprising.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11432823September 13, 2021
STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS, SUSPENSION:REAR
The contact owns a 2011 Mercedes-Benz C300. The contact stated while driving 25 MPH, the contact was going around a corner when he noticed a vehicle in front. The contact depressed on the brake pedal and the vehicle violently jerked and stop. The contact stated that the steering wheel was leaning towards the left. The contact was able to drive the vehicle to his residence. The following day the contact took the vehicle to an independent mechanic who inspected the vehicle and diagnosed the failure as a fractured and detached rear control arm due to corrosion of the undercarriage and subframe. The vehicle was towed to a local dealer to be repaired however, the contact declined the repair due to cost. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 82,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11432020September 7, 2021
ELECTRICAL SYSTEM, STRUCTURE:BODY
The automatic trunk lid started to close and hit my head while I was loading groceries into the trunk. It also started to close and hit my wife in the head when she was unloading the groceries about 15 minutes later. This situation was not reproduced or confirmed by a dealer or independent service center. There was no notice or warning of pending failure. There appeared to be no visible injury to either person except for a short pain in the head.
Crash:
No
Fire:
No
Injuries:
1
Deaths:
0
#11431700September 4, 2021
STRUCTURE:BODY
Panoramic glaaa sunroof mounting bracket made of cheap thin plastic that it breaks easily allowing the panoramic glass roof to fly off the car if driven while open.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11431718September 4, 2021
UNKNOWN OR OTHER
while driving on a highway a part of my roof panoramic fell risking my life and other people's life, I then sent an email to Mercedes Benz and they told me that this part is a subject of a recall. I took the car for two days and they told me that the part is not available for the moment and they need to order it from Germany with no ETA but at least 2 weeks. I asked them if I can safely drive without that part and they said it is ok. Yesterday while driving under light rain, water went in the car through the roof and through the missing part place onto the dashboard. And suddenly the panoramic roof opened alone and did not want to close while I was driving on the highway under the rain. I had to leave my car with an open roof. This roof issue is a repercussion of that item subject of the recall in addition to telling me that driving was safe without that part and turned out to be unsafe. I sent Mercedes Benz an email asking to fix all this mess for free and still waiting for an answer! Much appreciated, Ali
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11431170August 31, 2021
FUEL/PROPULSION SYSTEM
High pressure fuel pump failure causes unsafe driving conditions
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11430950August 29, 2021
UNKNOWN OR OTHER, AIR BAGS, ELECTRICAL SYSTEM
As I sat in my vehicle waiting for the traffic light. I felt a sudden hit on my head. At that moment I was confused, and thought someone had rear ended me. So like anybody would, I pulled over only to find out that the headrest on my 2013 Mercedes Benz C250 had came apart. It seems like the plastic inside tore apart from the springs causing pressure for it to deploy.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11430663August 26, 2021
ENGINE
I purchased this 2012 C250 Mercedes from Carmax of Waldorf on 04/26/2017, with 20,046 miles on it. I informed Carmax the engine light was on and the car was rattling at start. I also reported the oil dipstick was broken. When the car was returned, the dipstick was replaced, coolant light off and engine light was off; however, the rattling at start up continued. I reported the problem to Carmax several months later and they pretty much denied fault and went as far to say the car is just cold and does that at startup. For further protection I signed with carshield as my wife drives the car. The car's rattling continued at startup and eventually became difficult to start. I took it to Mercedes of Arlington, Virginia and they stated the timing gear and chain needed replacing. carshield reported back to me that it was a preexisting problem and wouldn't fix it. Meanwhile, we were stuck with a car we were paying on with no one taking the blame. Following research, I found that this is a recurring problem with the 2012 C250 model but there is no recall. I eventually paid approximately $5000 for the engine to be repaired as the engine failed. The engine is currently rattling again; with the engine light coming on constantly. this seems to be a common problem, however, with to consequences and accountability.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11430454August 25, 2021
SUSPENSION:SUBFRAME/MOUNTING BRACKET
The contact owns a 2012 Mercedes-Benz C300. The contact stated while driving approximately 15-20 MPH, there was a rattling noise heard and the vehicle was pulling to the right. The vehicle was taken to the dealer and diagnosed that the rear subframe was rusted and had fractured. The vehicle was not repaired and remained at the dealer. The manufacturer was made aware of the failure and opened a case. The contact was awaiting a call back from the case manager. The failure mileage was approximately 120,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11430314August 24, 2021
STRUCTURE:BODY, SUSPENSION
I was driving my 2012 Mercedes C250 through an intersection on 08/09/2021 when I first heard clunking noises in the rear of my vehicle. Every time I placed my foot on the brakes after that it continued to clunk until I took it to the Mercedes dealership for repair on 08/17/2021. The car had about 57,000 miles on it and was only nine years old, but the dealership said that the entire rear subframe of the vehicle had rusted and was close to completely separating from other parts of the vehicle. This was the first time I heard of any rusting in my vehicle, despite having the 2 rear tires replaced and alignment by the same place on 10/02/2020 (less than one year before). The service rep acknowledged that the car was well-maintained and that this was not due to any accident. This rusting was due to a manufacturing defect and has caused accidents in other Mercedes vehicles (https://www.carproblemzoo.com/mercedesbenz/c300/suspension-problems.php). It has resulted in recalls of rusted parts in both Europe (https://europe.autonews.com/article/19981026/ANE/810260839/mercedes-offers-guarantee-against-rust-for-30-years) and Canada (https://www.wheels.ca/news/mercedes-benz-recalling-vehicles-for-rust-problems/). Had I been travelling at a higher rate of speed when this piece failed, I could have been at risk of serious injury. This event occurred without any warning lamps or messages. The service for replacement and realignment was quoted at $4,358.71. Only after much argument did I receive a final bill of $3448.71. This was an unbelievable cost for replacing a part with a manufacturer defect. Mercedes headquarters tried to claim that the issue was due to exposure to snow and salt on the roads. This region rarely gets any snow. This lack of care for customer safety along with the fact that the dealership did not retain the part they removed from my vehicle after I had requested them to do so, left me realizing that Mercedes doesn't care about safety standards for their products.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11430074August 23, 2021
FUEL SYSTEM, GASOLINE
The contact owns a 2011 Mercedes-Benz C300. The contact stated he started to smell an abnormal fuel odor and noticed a spot where fuel had leaked onto the garage floor. The contact stated that the check engine warning light was illuminated. The contact stated that while inspecting the vehicle, he noticed both fuel tank covers were cracked. The contact drove another vehicle to the local dealer and made them aware of the failure. The vehicle was not diagnosed or repaired. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 12V557000 (Fuel System, Gasoline) however, the VIN was not included. The manufacturer had been informed of the failure. The failure mileage was approximately 82,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11430095August 23, 2021
FUEL/PROPULSION SYSTEM
07/31/2021 Fuel smell in the cabin, and in the garage, and a small paddle of gas formed under the car, but at that time I wasn't sure if it was the A/C condense, or gas. Took car out of the garage and left it there overnight. Drove the car next day and the smell was less noticeable, and it disappeared in about two days. Next two weeks did not ill up the tank completely, and there was no smell or leak. Yesterday, Sunday, Aug 22nd, I filled the car with gas again until the pump stopped, and the smell came back instantly, as I was driving home. Parked the car in the driveway and immediately noticed a large paddle of gas forming under the left rear wheel. Removed back seat and both fuel tank pump metal covers, and both plastic fittings/covers were leaking gas, more so on the driver's side. There are hairline fractures in both covers, and both are leaking gas. Removed both covers and siphoned gas out of the car until the leak stopped. I went to Hendrick's MB of Durham and asked about the recall, they denied that my car qualifies. The parts alone were quoted at $1229.12, without labor, and I was told fuel tank worth about $1,000.00 (without labor) may need to be changed as well. NHTSA recall campaign 2013020002 mentions my car. My defect is worse than most because both sides leak gas, not just the pump, and both have visible with naked eye fractures that leak gas. I cannot understand how is my risk of fire and death while driving less than that of other MB's with exactly the same failure, in the same class, and the same C300, for the same year. I expect the cost of repair with labor to be more than $3,500 .
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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