Mercedes-Benz C-Class Complaints

3,817 consumer complaints on file.

#11579237March 25, 2024
ENGINE
CODE'S P052W-71 & P060A-00 THESE'S CODES HAS BEEN AN ISSUE WITH MERCEDES BENZ FOR QUITE SOME TIME NOW... ITS BEEN COMPLAINTS AFTER COMPLAINTS AND MERCEDES BENZ HAS NOT TAKING OWNERSHIP OF THE ISSUE.. THIS IS DEFINATELY A RECALL PLEASE LOOK INTO THIS I CAN BE REACH AT [XXX] 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
#11579368March 25, 2024
POWER TRAIN, FUEL/PROPULSION SYSTEM, ENGINE
The Positive Crankcase Ventilation (PCV) valve is crucial for regulating the flow of gases in the engine's crankcase. If the PCV valve malfunctions or becomes clogged in a car like the 2016 Mercedes Benz C300 4-matic, several problems can arise: 1. **Increased Pressure:** A malfunctioning PCV valve can cause pressure to build up in the crankcase. This increased pressure can lead to oil leaks, gasket failures, or even engine seals blowing out. 2. **Poor Engine Performance:** When the PCV valve fails, it can disrupt the air-fuel mixture in the engine, leading to rough idling, stalling, or decreased fuel efficiency. This can result in a loss of power and overall poor engine performance. 3. **Contamination:** A faulty PCV valve may not properly route harmful gases, like unburned fuel and moisture, out of the crankcase. This can lead to contamination of the engine oil, reducing its effectiveness in lubricating engine components and potentially causing premature wear and damage. 4. **Increased Emissions:** A malfunctioning PCV valve can result in increased emissions from the vehicle, as it may not properly recirculate harmful gases back into the combustion chamber for burning. Overall, a nonfunctional PCV valve can negatively impact both the car's performance and the environment, potentially leading to costly repairs and increased pollution. Additionally, prolonged exposure to increased emissions from the vehicle can be harmful to both the environment and the health of individuals. Therefore, it's essential to regularly inspect and maintain the PCV valve to ensure proper functioning of the vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11579421March 25, 2024
UNKNOWN OR OTHER
PCV Valve Malfunction, common in my model year.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11579025March 23, 2024
ENGINE
The Valve for crankcase ventilation has a malfunction. The actuator is blocked.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11578887March 22, 2024
POWER TRAIN
The contact owns a 2014 Mercedes-Benz C250. The contact stated while depressing the accelerator pedal, the vehicle jerked and then the traction control warning light illuminated. The contact released the accelerator pedal and was able to press the accelerator pedal again to regain normal operation of the vehicle. The contact continued to drive the vehicle for a few months without experiencing another failure. The contact took the vehicle to the dealer for routine maintenance where it was diagnosed that the differential mounting flange was cracked on the driveshaft. The contact discovered NHTSA Campaign Number: 17V654000 (Power Train) however, the VIN was not included. The vehicle was not repaired due to the parts not being available. The manufacturer was notified of the failure. The failure mileage was approximately 61,192.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11578594March 20, 2024
ENGINE
My Mercedes has a P052E check engine light code for its PCV value performance. I do see that many other drivers are having this issue and that repairs are around $2,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11578242March 19, 2024
ENGINE
Crank case vent valve assembly
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11578327March 19, 2024
SUSPENSION
Rear sub frame rusting through
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11578340March 19, 2024
VEHICLE SPEED CONTROL, SERVICE BRAKES, HYDRAULIC, AIR BAGS
The contact owns a 2013 Mercedes-Benz C300. The contact stated while pulling into a parking space and depressing the brake pedal, the vehicle accelerated unintendedly. There was no warning light illuminated. The contact stated that she depressed the brake pedal but the vehicle failed to respond. The contact stated that while the vehicle was approaching a building ahead, she veered to the right and hit the front bumper of an occupied vehicle. The vehicle then drove over the sidewalk. The contact stated that while approaching the end of the sidewalk, she veered to the right and the vehicle stopped after approximately 200 feet. The air bags did not deploy. There was no injury sustained. A police report was filed. The vehicle was towed to an auto collision repair shop. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 23,032.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11578049March 18, 2024
ENGINE
My Mercedes benz C300 2017 have the P052E positive crankcase ventilation regulatory valve, and Mercedes Benz they start sending this letter and when I go to the dealer they said my car not qualified, but the letter says other thing, my car have the check engine light on with the code PO52E. They don’t want to do the repair because is a $2,500 repair and they making excuses to not do it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11578066March 18, 2024
FUEL/PROPULSION SYSTEM
There is a gas smell pervasive in the driving compartment of the car. My mechanic identified a recall campaign for almost every other 2016 C 300 class vehicle. For some reason, my “platform quote number is not listed, but the problem is exactly the same as described in campaign description number. 21P2197456 released on December 17, 2021.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11578117March 18, 2024
VISIBILITY:SUN/MOON ROOF ASSEMBLY
The contact owns a 2017 Mercedes-Benz C300. The contact stated while driving 65 MPH, the sunroof exploded inadvertently. The contact stated that the shade guard was closed when the failure occurred. The contact had not sustained any injuries. The contact continued driving at slow speeds, and there was glass falling on the road while driving. The vehicle was taken to the dealer, who provided a cost for the repair. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and informed the contact that they could not assist because the VIN was not included in a recall. The failure mileage was approximately 75,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11577903March 17, 2024
ENGINE
P052E Positive Crankcase Ventilation Regulator Valve Performance this is a common issue with Mercedes as lots of car are affected by this and this should be covered under emission but lots of dealership are declining saying it’s not covered under emission warranty but this code cause pollution and this part is so expensive to fix and I paid 2k to fix it last year and that same code came again. We can’t keep paying 2k plus for something Mercedes fault design Please help us and make Mercedes Recall this Part
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11577820March 16, 2024
ENGINE
Error code P052E Positive crankcase ventilation regulator valve performance
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11577600March 15, 2024
STRUCTURE:BODY
rear subframe severe corrosion and cracking, have pictures of it the corrosion severity, yes available upon inspection. mechanic told me my 2 rear wheels can fall out completely and leave me with no control over the car. the car has been inspected by a certified independent service center. No. and no warning lights and no symptoms just the rear subframe cracking on the verge of falling off
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11577612March 15, 2024
SERVICE BRAKES, POWER TRAIN
On 2/17/24 the vehicle was parked in front of my house. There is a slight grade. The vehicle had been parked for approximately 1 hour when my neighbor called me to tell me that the vehicle had rolled down the hill and into his storage building. The vehicle rolled on its own. I have video evidence that no one was in or around the car at the time of this occurrence. I also, have 2 eyewitnesses who can corroborate this story. Due to safety concerns, I immediately returned the vehicle to Mercedes. I have .MOV files and pictures JPEG that will not upload for some reason.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11577103March 13, 2024
ELECTRICAL SYSTEM
The contact owns a 2011 Mercedes-Benz C300. The contact stated that when starting the vehicle, the ignition was not reading the key, and the steering wheel was locked. The message to remove the key from the ignition was displayed. Additionally, the fuel gauge was inoperable and not reading the fuel level. The vehicle was taken to the dealer where it was diagnosed with a locked steering wheel and the steering wheel lock needed to be replaced. The vehicle was not repaired. The contact was informed that the parts were ordered to complete the repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 100,100.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11577135March 13, 2024
STRUCTURE:FRAME AND MEMBERS
The contact owns a 2013 Mercedes-Benz C300. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed, and the vehicle pulled to the left aggressively. The vehicle was driven to the residence; however, while driving, the failure reoccurred. The vehicle was taken to the dealer where it was diagnosed with a severely corroded rear subframe and that the rear subframe needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 134,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11577235March 13, 2024
UNKNOWN OR OTHER
Sun roof not opening. Mechanic notified me that this is a known issue, but no recall at this time.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11576712March 11, 2024
AIR BAGS, ELECTRICAL SYSTEM, BACK OVER PREVENTION: WARNINGS
Within the first week of ownership (delivery on 1/15/24), the car's parking and/or front collision sensors started malfunctioning on a regular basis. The sensors repeatedly gave off false alerts when the car would approach intersections even though no obstacles were in front of, or behind, the car. The false alerts were quite startling and they consisted of loud alarms and warning images in both the driver's display and the car's heads up display. The repeated false alarms posed a significant safety hazard because they initially caused me to slam on the brakes risking a rear end collision. Once I realized the sensors were malfunctioning, I started to ignore them which is equally dangerous if a real collision needed to be averted. The car is currently in the service department, and it has been there for a total of 29 days thus far. It was initially thought that a software update would resolve the problem, but that did not work. After the software update was completed, a new "parktronic" module was installed. That also did not solve the issue. I am now being advised that the car is issuing fault codes related to the airbag system. It seems that there are some serious electrical problems that are plaguing the vehicle. The service department has advised me that they have no clear date on when this issue will be resolved.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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