Mercedes-Benz C-Class Complaints (2016)

323 consumer complaints on file.

#11473348July 11, 2022
ENGINE, UNKNOWN OR OTHER
This is a known problem with The Mercedes cars from 2015 through 2018. The Service advisor said this is a know issue with this year, I asked can you do it for free because it is a Merc issue. He said he cannot do it. The cost for this repair is $2500 in Mercedes show room. These should be recalled and repair it for free for the customers.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11471877June 30, 2022
UNKNOWN OR OTHER, ENGINE
Hello, I have 2016 Mercedes Benz c300(W205). Recently I got a Check Engine Light with P052E71. And the solution is to replace the Crankcase Ventilation Valve/Oil Separator, Intake Manifold. These parts are positioned on the right side bottom of the engine. It was a labor intensive work which required to remove multiple parts to gain access to the oil Separator. Considering the Issue Persists from W205 and Mercedes Benz has not done anything to rectify it, the cost is actually burdened upon the customer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11470665June 23, 2022
ENGINE
P052E emissions code
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11468718June 10, 2022
ELECTRICAL SYSTEM, ENGINE, POWER TRAIN
While driving the check engine light came on. The inside of the car started to smell like gas. A diagnostic check was performed at the Mercedes dealership and it was determined that there were 2 faults: low boost signal & ME control unit this was due to oil leaking from the crankcase vent line through the engine wiring harness and into the ME (engine module).
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11467774June 6, 2022
UNKNOWN OR OTHER
After locking car and walking away, engine starts, lights go on, and car doors become unlocked.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11467780June 6, 2022
ENGINE, ELECTRICAL SYSTEM
The contact owns a 2016 Mercedes-Benz C300. The contact stated that after turning off the vehicle and locking the doors; after a while, the vehicle would independently unlock the doors and then start up without driver input. The vehicle was taken to the dealer however, the mechanic was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 43,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11466110May 25, 2022
ENGINE
Failure in the performance of the Crankcase Ventilation Regulator valve, research online indicates this is a very common issue especially in w205s. Mercedes has omitted this from their gasoline powered, emissions control warranty, but is listed under the BLUtech/ Diesel warranty. The car will fail the emissions test, and Mercedes Models have a recurring problem with this part which is charged out of pocket once vehicle warranty is up.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11465794May 23, 2022
ELECTRICAL SYSTEM, STEERING, UNKNOWN OR OTHER
When I go to put my car in reverse, or drive the gear control is malfunctioning and I’m afraid this can be deadly or cause serious injury.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11463800May 8, 2022
UNKNOWN OR OTHER
I was driving my 2016 MB C300 on a clear sunny day (approx 85 degrees outside) going around 50 mph when out of nowhere my pano sunroof exploded (extremely terrifying sound might I add!)! I never open my sunroof and it did not have any chips or cracks at all so there is no explanation. Almost the entire sunroof shattered! Mind you I was driving on an open road (no trees, overpasses, bridges, etc). No cars in front of me and closest car was around 1/4 behind me. Shards of glass fell on top of me and went all over the interior of my car. I almost drove off the road and could have gotten glass in my eyes! After inspecting, it almost appears as if the glass exploded outwards. This is a major safety concern and needs to be addressed ASAP by Mercedes Benz before someone gets killed!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11463615May 6, 2022
ENGINE
Check engine light and error code P052E - Positive Crankcase Ventilation regulator Valve Performance. Within a year of having the same error code repaired using warranty, I'm again getting the same error code. This is a very expensive repair costing upwards of $2000 as per dealer and I'm having to do this repair again. This should be some kind of manufacturing defect and needs to be recalled.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11461494April 20, 2022
STRUCTURE:BODY
exterior fixed front roof panel cracking and causes potential roadway dangerous situation if pulls off roof while driving
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11461567April 20, 2022
UNKNOWN OR OTHER, ENGINE
- CRANK CASE VENT VALVE malfunctioned, it was available for inspection upon request with fee - It made oil burning smell - The problem has been confirmed by a dealer and replaced with an expensive fee - Engine check light was on
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11459780April 5, 2022
ENGINE
The vehicle lost power on the Freeway, coasted the off-ramp, and came to a stop, the dealership after describing the issue said that it sounded like a bad piston. Said they have had a couple come in with the same problem. Their diagnosis was a bad piston a day later. The mileage is less than 50,000 miles and the car was driven daily to work 4 miles each way. There were no warnings or symptoms of failure prior to happening. The warranty on the vehicle has expired on 7/1/2021
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11459604April 4, 2022
VISIBILITY:SUN/MOON ROOF ASSEMBLY
The contact owns a 2016 Mercedes-Benz C300. The contact stated the sunroof failed to close and was stuck open. The vehicle was taken to dealer and was diagnosed that the sunroof rail, motor and rods needed to be replaced. The vehicle was not repaired. The contact stated while driving at 15-20 MPH, she noticed that the sunroof was lifting up. The contact decreased her speed to 10-15 MPH and moved to the shoulder of the road. The contact stated that sunroof flew off and landed on the ground. The dealer was notified of the failure and informed the contact that the vehicle would be repaired at her own expense. The manufacturer was notified of the failure and informed the contact that they could not assist as the vehicle was out of warranty. The vehicle was not repaired. The failure mileage was approximately 82,000. The VIN was not available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11459285April 1, 2022
UNKNOWN OR OTHER
Check engine light Crankcase ventilation valve failure Mercedes dealer diagnostic
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11456951March 16, 2022
FUEL/PROPULSION SYSTEM, STRUCTURE:BODY
Gas smell while driving.Not reported
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11455397March 6, 2022
ENGINE
Around the 58,000 mile mark my check engine light on my 2016 Mercedes C300 4MATIC came on . I checked the gas cap, as that can set off the check engine light, and the check engine light went off the next day. 3 days later the check engine light comes on again, so I repeated the steps of taking the gas cap off and putting back on. The light did not go off the next day. 5 days later the light goes off again. This happened several times over a span of 2-3 weeks. I then take my car to be checked with an OBD-II Scanner. It read off every time the check engine light had been on, which was several times. The error code the scanner displayed was "P052E" and a description of "Positive Crankcase Ventilation Regulator Valve Performance". It was the same code multiple times. At this point I did a little research to see if this was something I could repair. While researching the issue, I found that case after case of the very same issue was being reported by owners of cars like mine. I then came across a post that said they had reported the issue to NHTSA and was told that it was such a widespread issue that if "A few more cars are reported to have this issue then a recall would potentially be issued because of the amount of cars that are having the exact same issue at very similar mileages, and it is a very expensive repair. I just feel that this is too common of a problem by the same cars, at the same mileages from the same Manufacturer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11454330February 27, 2022
ENGINE
P052e positive crankcase ventilation
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11450733February 7, 2022
FUEL/PROPULSION SYSTEM
Fuel leak from fuel lines from high pressure fuel pump. This is a common problem for C300s from 2015 to 2019, especially in cold weather. Fumes in cabin and fire risk in engine compartment.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11450187February 3, 2022
FUEL/PROPULSION SYSTEM
My vehicle: (1) smells of gasoline through the vents. The smell of gasoline is SO STRONG that I have had to pull over and get out of the vehicle. My car has 104,000 miles on it. Not a lot of miles for a 2016. There are NO warning lights on indicating a problem with the vehicle. (2) The silver trim/coating that covers the window buttons and around the entire dashboard has bubbled overnight and is flaking off. It constantly cuts fingers and arms. (3) Approximately 5 months ago the headliner in the car started buckling.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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