Mercedes-Benz C-Class Complaints (2017)

253 consumer complaints on file.

#11575776March 6, 2024
STRUCTURE
The contact owns a 2017 Mercedes-Benz C300. The contact stated that while driving 60-65 MPH, the vehicle made an abnormal whistling sound. Additionally, the contact stated that while the vehicle was at the car wash, and she became aware that water was leaking inside the vehicle through the windshield bonded panel. An independent mechanic was contacted and informed the contact that the front windshield bonded panel could have detached; however, the vehicle was not diagnosed nor repaired. The dealer was not notified of the failure. The contact related the failure to NHTSA Campaign Number: 21V197000 (Structure); however, the VIN was not included. The manufacturer was notified of the failure and informed the contact that they could not assist because the VIN was not included in the recall. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11573268February 22, 2024
ENGINE
Check engine light came on. Error code indicates a PCV crankcase ventilation valve has malfunctioned. Code is P052E. This is a notorious problem with Mercedes, BMW and other European cars. It should also be considered part of the emissions system. Contacting the MB dealers, I cannot get a clear definition whether it is covered by extended warranties or any warranty whatsoever. They are vague as to "maybe, but not sure". I feel that there should be a recall to fix the defective parts involved with this error code.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11573103February 21, 2024
ENGINE
P502e code crankcase ventilation failure
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11571637February 13, 2024
STEERING
The contact owns a 2017 Mercedes-Benz C300. The contact stated that while starting and driving the vehicle, the electric power steering was inoperable. There were no warning lights illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The contact stated that the failure was related to NHTSA Campaign Number: 17V243000 (Steering). The failure mileage was approximately 25,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11570166February 6, 2024
STEERING
While driving on the freeway car pool lane with my wife, a sudden vibration in the front tires was observed, the car felt like it was pushed to the right then to the left even though it was in the center of the lane. Told my wife, "something is wrong with the car!" Thinking that I may have had a flat tire, I slowed down, the car went into a violent flat spin until the right rear end of the car hit the center lane divider. Airbags deployed. 911 was called, we were assisted by Highway patrol to the other side of the freeway. As the car was put on a flatbed tow truck, the tow truck driver commented that one of the front wheel was not turning. We found out that the right rack and pinion broke. The car was declared a Total Loss.
Crash:
Yes
Fire:
No
Injuries:
2
Deaths:
0
#11566746January 21, 2024
FUEL/PROPULSION SYSTEM
During cold starts the fuel injectors/clamps leak causing strong gasoline smell inside the cabin. After research online this is a common issue with W205 systems. I am beyond surprised this has not been investigated and reported as a safety recall as it can pose a fire hazard. Please investigate and Mercedes should be fixing this issue….
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11565592January 15, 2024
TIRES:TREAD/BELT, TIRES
After approx 24,000 miles and 18 months, I was told all four tires needed to be replaced and were down to between 3/32nd and 2/32nd tread left on all four tires, despite regular rotations, alignment, and overall car maintenance. These were purchased at Mavis in East Brunswick, NJ in May, 2022 and we were notified of the tread wear after a regular maintenance appointment at a Mercedes Benz dealer. I notified Mavis and came in for them to measure tread depth, which was found to be in the unsafe range. Mavis is only offering me warranty coverage, based on mileage used, of a total of $360. Obviously, this is a manufacturer defect since all four tires wore so quickly and evenly. I was told there is a 40,000 mile warranty.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11563051January 2, 2024
FUEL/PROPULSION SYSTEM
every winter this car will have a heavy smell of gas in the engine and the cabin, after driving it for around 15 minutes with the windows open in the cold it goes away. no problem in the summer time. My mechanic said it's a common problem with these cars.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11560813December 19, 2023
FUEL/PROPULSION SYSTEM
There is a short rubber fuel line/hose in the engine compartment that is attached with compression clamps; the hose connects the fuel line from the gas tank to the high pressure fuel pump. When it gets cold outside (below ~40 degrees Fahrenheit) the clamps loosen a bit and the hose will leak gas The entire interior smells like gasoline, really bad.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11561010December 19, 2023
ENGINE
P052E PCV Regulator Valve Performance
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11560289December 15, 2023
POWER TRAIN
Positive Crankcase ventilation
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11559554December 11, 2023
FUEL/PROPULSION SYSTEM
code p052e came on randomly.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11559292December 9, 2023
STRUCTURE:BODY
The glass panel between the top of the windshield and the front of the glass sunroof suddenly detached from the car. I was driving on the I-5 freeway at 70mph when the panel detached without warning. By the time I had safely pulled over I could not safely walk back to see if I could find the panel. The freeway was busy, I do not know if the panel struck another vehicle. It looks like the adhesive that holds the panel on has failed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11558037December 2, 2023
ENGINE
My vehicle started shaking and the check engine light came on. It's a PCV valve
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11554961November 13, 2023
VISIBILITY/WIPER
- windshield, and I had Satellite repair it through an insurance claim because it was urgent for my safety. - the windshield and its adhesive never bonded together making the windshield structurally unsafe and if I would have gotten into an accident then my vehicles airbags would have not deployed properly. - The issue was brought to my attention from a Satellite repair representative. - yes Safelite who contacted my insurance. - I went through a car wash and found water making its way into my car interior, which I then inspected and found that my windshield was floppy and not attached to my car and how it should.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11552831October 31, 2023
FUEL/PROPULSION SYSTEM
I have a 2017 C 300 and it smells like gas when I turn my heat/ac on. I contacted Mercedes to see if there was a recall as this is a huge issue with many customers but Mercedes offered no assistance. The smell of gas is very dangerous and I think it's unfair to the customers that Mercedes has known about this problem but chose to do nothing.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11552649October 30, 2023
FORWARD COLLISION AVOIDANCE: WARNINGS
Front safety system inoperable
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11552711October 30, 2023
SEAT BELTS
The contact owns a 2017 Mercedes-Benz C300. The contact stated while the vehicle was parked in the driveway, the driver’s side seat belt failed to retract as designed. The contact stated that the seat belt was loose. There was no warning light illuminated. The vehicle was taken to the dealer to be diagnosed, but the vehicle was not yet diagnosed. The vehicle had not been repaired. The manufacturer was not made aware of the failure. The contact referenced NHTSA Campaign Number: 21V032000 (Seat Belts) as a possible cause for the failure. The failure mileage was approximately 8,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11552323October 27, 2023
ENGINE
I took my vehicle to the mechanic due to the check engine light been on. The diagnostic came back to be that "The valve for crankcase ventilation has a malfunction. The actuator is blocked." As per mechanic this has to be replace but cost around $ 2,000 plus.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11551629October 24, 2023
UNKNOWN OR OTHER
Factory AMG rims. 3 of the 4 rims have cracked. The last rim cracked with brand new tires. So it is not a tire issue. I find it unbelievable looking online how may others have had this problem with AMG rims. Does not seem acceptable.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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