Mercedes-Benz C-Class Complaints (2015)

452 consumer complaints on file.

#11548843October 7, 2023
ENGINE
check engine light
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11548516October 5, 2023
ENGINE
My check engine light came on recently on my 2015 C300 4matic. Car has 66500 miles on it. The code P052E71 was diagnosed - The valve for the crankcase ventilation has a malfunction. The actuator was blocked. This problems seems to be occurring to a lot of similar cars from Mercedes and some of them have reported that this issue keeps coming back. The dealership and other auto body shops say it's going to cost around $1500-$2000, considering how it's a tedious job to do and involves multiple hours of labor. The dealer won't repair it as part of warranty. This definitely seems to be an engine issue with the car and has nothing to do with how we drive. Cars not older than a couple years are starting to see this issue. There needs to be a recall for this and have Mercedes does something about it. Why are the consumers having to spend money to have the same repairs done for a bad design, parts and engine being provided by Mercedes.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11548209October 4, 2023
FUEL SYSTEM, GASOLINE
The contact owns a 2015 Mercedes-Benz C300. The contact stated that after refueling, the contact smelled a gasoline odor throughout the interior of the vehicle. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the canister purge valve. The vehicle was not repaired. After investigating the failure, the contact related it to NHTSA Campaign Number: 15V138000 (Fuel System, Gasoline), but the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was 10,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11547899October 3, 2023
ENGINE
The valve for crankcase ventilation has a malfunction. The actuator is blocked. Seems like its a common problem for all mercedes C300 ~2015 models. The part should be recalled.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11547209September 28, 2023
UNKNOWN OR OTHER
P052E. Positive crankcase ventilator valve replacement.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11545905September 21, 2023
ENGINE, UNKNOWN OR OTHER
After getting gas my check engine came on steady. Stayed on until cleared. After getting gas a 2nd time check engine light came on again, stayed on, but went out. Then after getting gas a 3rd time, check engine light came on again. Checked by a local Mercedes shop, code showed intake line oil separator bad. Owned this car for 7 years, never had an issue like this. 50,516 miles currently. Quote for repair is high, over $1000 dollars. All episodes of check engine light have occurred in a 4 week time frame.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11545073September 17, 2023
ENGINE, FUEL/PROPULSION SYSTEM
P052E PCV value problem Google search results show this is a very common problem, and despite being a component of the vehicle emissions system, Mercedes is refusing to repair under the emissions warranty.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11543843September 11, 2023
ENGINE
2015 MB C300 Check engine light came on, appointment scheduled to check issue before it went to the mechanic had a safety issue when accelerating to turn in a seven lane busy intersection the car lost acceleration and missed, running rough for a few seconds then recovered in time for me to get out of the way of the 45-50 mph oncoming traffic. Issue is P052E positive crank case ventilation valve which is going to cost $2200 to fix. Car has just over 60k miles on it and this is a known issue for YEARS on multiple MB turbocharged 4cl. I could have been t-boned if the acceleration hadn’t recovered. Does someone have to get killed before MB recalls the vehicles? 60k miles is not a lot of mileage for a car 8 years old that has had all its scheduled maintenance.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11542815September 6, 2023
ENGINE, ELECTRICAL SYSTEM
ESP CONTROLLER NON FUNCTIONAL
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11541416August 29, 2023
SERVICE BRAKES, ENGINE
My crankcase vent valve needs to be replaced also EBD traction abs module which alone cost over 1500 for part needs to be replaced
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11541265August 28, 2023
UNKNOWN OR OTHER, ENGINE
2015 made C399 PVC change cost more than $1,000. Almost every driver has this issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540787August 25, 2023
ENGINE
MB 2015 C300 4MATIC. Check engine light came on. Went to a Mercedes Mechanic and they read the code as PO52E71. Crankcase Vent Valve Malfunction. This was reset and two days later the check engine light came on again with the same error/fault code being read. This seems to be a common issue for this manufacturer and is a very expensive repair. In the even this is a common issue, I wanted to report this for the record.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11538997August 16, 2023
ENGINE, ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)
The contact owns a 2015 Mercedes-Benz C300. The contact stated while driving 25 MPH, the check engine warning light illuminated. The contact veered to the side of the road. The vehicle was towed to an independent mechanic, where the diagnostic test retrieved code: P052E, and it was determined that the positive crankcase ventilation (PCV) valve had failed and needed to be replaced. The vehicle was not repaired. The dealer and the manufacturer were not notified of the failure. The failure mileage was approximately 125,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11537702August 10, 2023
LANE DEPARTURE: BLIND SPOT DETECTION
Blind Spot Assis Inoperative. This message appears on dashboard showing the malfunction of the blind spot sensors. This always happen when the weather temp is hot and also while driving during rain. This concern is putting me, my wife and kids in high risk and unsafe driving condition. I did some research and found out that the manufacture of this car put these electronic sensors inside the rear bumper behind both rear wheels and are exposed so whenever driving, rain, dirt, salt and all road debris splash all over these electronic sensor causing them to corrode and destroyed as a result of water and salt getting inside these fragile electronic sensors and then, the whole blind spot system inoperative and of course high risk to get involved into an accident.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11537283August 8, 2023
STRUCTURE
The contact owns a 2015 Mercedes-Benz C300. The contact stated while driving at approximately 65 MPH, she heard a rushing air sound as if the sunroof was opened; however, the sunroof was not open. The contact stated that when she reached her destination, she noticed there was a panel missing from the roof between the sunroof and the windshield. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle had not been diagnosed or repaired. The manufacturer had been informed of the failure. The contact researched online and related the failure to NHTSA Campaign Number: 21V197000 (Structure). The failure mileage was approximately 100,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11536925August 7, 2023
STRUCTURE
The contact owns a 2015 Mercedes-Benz C300. The contact stated while driving 60 MPH, there was an abnormal wind sound coming into the vehicle. After a visual inspection, the contact noticed that the glass was detaching from the panoramic sunroof. The vehicle was towed to the dealer, who determined a failure with the adhesive. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 21V197000 (Structure) however, the VIN was not included. The manufacturer was notified of the failure but referred the contact to the NHTSA Hotline for assistance. The failure mileage was 51,150.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11534259July 25, 2023
ENGINE
Engine crankcase vent valve failure. common issue with these vehicles. can cause fire
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11534426July 25, 2023
FUEL/PROPULSION SYSTEM, ENGINE
Just got my car from the mechanic on 7/21/23 and it through an error code as I drove home. Towed back snd mechanic stated I need to replace the crank case vent valve assembly. Further stated that they keep in stock because it happens often. Error code P2188
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11532943July 18, 2023
ENGINE, FORWARD COLLISION AVOIDANCE: WARNINGS
Engine Crankcase (pcv) Problems on Mercedes Benz C300 and harness issue. I’ve noticed this is a very common issue many owners as myself have experienced and no action for a recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11532719July 17, 2023
STRUCTURE:BODY
While driving on highway a load noise was heard pulled off the road to see what it was and the part of the sunroof that meets the windshield had raised up so we tried to push it down and continue towards home the car had to be driven at around 40 miles per hour to keep it from elevating and in fear that it might come off and hit someone's car or cause an accident
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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