Mercedes-Benz C-Class Complaints (2018)

118 consumer complaints on file.

#11508602February 22, 2023
ENGINE
Engine light P052E, This seems to be a common problem with the C300.My concern is that Mercedes Benz hasn’t address the common issue. I own the car less than a year got it from Mercedes dealership and to be honest I expect Mercedes Benz to be better than the this to it customers
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11508445February 21, 2023
ENGINE, FUEL/PROPULSION SYSTEM
at 67000 miles the check engine light came on and is was engine code p052e crankcase ventilation regulator valve failure. This failure will cause the ending to exhaust increased contaniments in to the air. This is a know problem by MBUSA and they have changed the part design on new vehicles , this problems comes up right after the cars warranty and they cost to repair is in excess of $2500. For this to be an emission know problem by MBUSA a recall should be issued and this problem corrected under the recall process of the NHTSA ASAP. This has been reported to MBUSA and they have been zero help in this matter. The NHTSA is here to protect our citizens and environment and hopefully you will continue to do so.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11508446February 21, 2023
ENGINE, FUEL/PROPULSION SYSTEM
Failed positive crankcase ventilator after 40,000 miles common problem regulating oil consumption to the engine. Causing oil burn, oil leak, inconsistent oil ventilation. Dealer is aware of the problem. Engine light is on with code P052E. Commonly reported problem for this model on the internet.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11507887February 17, 2023
ENGINE
Code P052E just like all 2.0 turbo Mercedes Benz engines will get. This is a engineering defect and the cars with these engines should be recalled. I have researched and read that even after repaired this expensive engine defect will re-occur about every 35000 miles.
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
#11503405January 24, 2023
POWER TRAIN
Error Code P052E Positive Crankcase Ventilation Regulation Valve Performance
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11498619December 23, 2022
ENGINE
initial observation started happening intermittently a week before the car become inoperable. When the vehicle came to a stop like at a light the engine would sound like it was going to almost turn off like a rattle noise and a popping sound or like I hit a plastic bag sound on acceleration. Then the day it broke down I was merging onto interstate 15 I heard the same popping sound, the engine light came on and my car broke down. My car was towed to Mercedes Benz of Ontario and inspected by technicians there and by the claims inspector for safe guard international (service protection plan i purchased with the vehicle)I was told it needed an entire new engine due to cracks in two pistons, etc. This was confirmed by the claims inspector with safe guard. This car was well maintained and only had 69,000 miles on it. I don’t think I need to explain the how my safety or the safety of others was at risk when my car breaks down in the middle lane on interstate 15 in California and I have to get over to the shoulder. This vehicle is available for inspection if needed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11481491August 27, 2022
UNKNOWN OR OTHER
I have a 2018 C class. Purchased it with 32k mikes 12/21. April 2022 I started experiencing issues. When I put my car in drive/reverse the gears shift it’s self back to neutral. When I’m stopped at a light it will take me out of drive and shift it’s self in neutral. I’ve taken my car to the Mercedes dealer for a diagnostics paid out of pocket and they were unable to find the issue. This is a major safety concern and I would like to be contacted as it is unsafe to drive and no one seems to be able to locate the issue so it can be repaired.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11479681August 16, 2022
ENGINE
Engine light appears due to P052e code “positive crankcase ventilation regulatory valve”. Part failed prematurely and appears to be a common problem in make/model. May cause engine damage due to inability to clear combustion gases in the crankcase.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11478301August 9, 2022
ENGINE
CRACKED PISTON AT 68K MILES The vehicle is very well maintained, only 68k miles, has had every oil change, only takes premium gas. I was driving it when the check engine light went on and the vehicle began shaking violently. After towing the vehicle to the Mercedes Benz dealership, they informed me that the piston cracked and they could not articulate a reason why this would happen.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11478151August 8, 2022
EXTERIOR LIGHTING, WHEELS
Headlight is out and there is no replacement; dealer says they are having significant issues with headlamps. Also, tire safety monitoring system is always on, even though there is a proper air pressure amount.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11476629July 30, 2022
UNKNOWN OR OTHER
Damaged cords on the soft top interior trim with the following characteristics: - Cord snapped - Cord worn - Cord torn out - Cord sheathing damaged Cause: Possible high tensile stresses on the cords during the soft top sequence
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11476706July 30, 2022
ENGINE, POWER TRAIN
Engine light ON with DTC code P052E
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11475159July 21, 2022
ELECTRICAL SYSTEM, COMMUNICATION
The contact owns a 2018 Mercedes-Benz C300. The contact stated that the SOS warning light was illuminated. Upon testing the SOS system, the contact stated that the system failed to operate as needed. The contact then received notification of NHTSA Campaign Number: 22V365000 (Electrical System, Communication). The vehicle was taken to the dealer for service, however, the failure persisted. The vehicle was taken back to the dealer on multiple occasion for multiple repairs related to the failure. Recently, the contact was informed that the Hermes control unit was defective. The manufacturer was notified of the failure and the contact was informed that the repair cost was not covered. The vehicle was not repaired. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11473032July 9, 2022
ENGINE
My car engine shutoff at stop lights. it happened 3 times, the other 2 incidents happened at parking lots.
Crash:
No
Fire:
No
Injuries:
0
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
#11459798April 6, 2022
EQUIPMENT:ELECTRICAL:INFOTAINMENT
Under hot ambient condition center console touchpad glass crack. There is a service bulletin TSB LI54.21-P-068464 for the issue but MB would not replace the part.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11459942April 6, 2022
UNKNOWN OR OTHER
Engine light is on recently on my 2018 C300. Car has 36000 miles on it. It is diagnosed as the valve for the crankcase ventilation. The actuator was blocked.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11459021March 30, 2022
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
The contact owns a 2018 Mercedes-Benz C300. The contact stated while driving 35 MPH, there was white smoke coming from exhaust. The contact stated that the check engine warning light illuminated. The contact stated that after turning off the vehicle the smoke cleared. The vehicle was towed to dealer but was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 54,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11454009February 25, 2022
ENGINE
My Mercedes C300 2018 only have 33k miles on it, but I was leaking oil and gas from the positive crankcase ventilation valve which is not environment friendly. As I know many other who own Mercedes also have the same problem.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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