Mercedes-Benz C-Class Complaints

3,817 consumer complaints on file.

#11513818March 26, 2023
SERVICE BRAKES, SUSPENSION, POWER TRAIN
The left rear weld of the subframe on my 2012 C300 4matic has rotted through and appears to be a manufacture's part defect. I found out about this issue from a brake inspection and told it is a safety concern, which Mercedes Benzes is aware of but has no recalls for the defect.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11513842March 26, 2023
ENGINE
The problem is actually a manufacturing defect in the wrist pins. The defective parts are in engines made before April 20, 2015 which is mine. If left unrepaired, it causes premature wear in the cylinder walls. The issue on my car been confirmed by mb dealer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11513743March 25, 2023
UNKNOWN OR OTHER, LANE DEPARTURE: BLIND SPOT DETECTION
This car is currently stolen out of bishopville south Carolina.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11513338March 23, 2023
ENGINE
obd2 scanner reported Error Code P052E which seems a very common issues on Mercedes C class 2015 or newer and there is no recall issued by Mercedes Benz yet which points out to possible problems with "PCV Regulator Valve components. There are 100s of post in the forum related to same issue
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11513427March 23, 2023
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
Popping sounds and smoke from center dash and right rear speaker. Center speaker magnet extremely hot to the touch.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11513522March 23, 2023
ENGINE, FUEL/PROPULSION SYSTEM
My son's car was blowing white smoke out of the exhaust and had a sweet burning smell and the check engine light came on. The crankcase vent valve is needing to be replaced on this 2015 C300 Mercedes Benz and many owners of this same type of car (different year) are posting about it. Owners of these types of cars are saying that replacement is happening more than once! That it's a common defect of these cars. My son has less than 100,000 miles (61,000 if that) and this shouldn't be happening. And, it's time someone does something to protect the consumer. Mercedes-Benz dealers are taking advantage of consumers and charging ridiculous prices to replace this part, but the part shouldn't be breaking. It's a safety factor in that it can affect driving, there's risk of blowing valves/valve cap and engines, including loss of the vehicle and nowadays no one can afford to buy a new car or even a used one! Consumers buy what they think is a reliable vehicle but Mercedes isn't taking care of their customers. Mercedes-Benz should be forced to do a recall and replace these faulty parts. Read other complaints here: https://www.benzworld.org/threads/2015-c300-crankcase-ventilation-valve-replacement-p052e71.3047538/page-2
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11512960March 21, 2023
SUSPENSION
Car wouldn't pass inspection because of a rotted subframe. I had to pay $3k to have it replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11512961March 21, 2023
SUSPENSION, STRUCTURE:BODY
My vehicle has been making very odd noises, the steering wheel keeps looking off center and the car is kicking/fishtailing at times without warning. Our mechanic has looked at the car SEVERAL times and finally discovered that the sub frame is completely rusted out and broken. We were told not to drive the vehicle anymore as it is extremely dangerous. After researching about this issue, we found that a class action lawsuit was filed in February 2023 for corrosion/rusting out of frames in 2010-2022 Mercedes Benz models. According to the information, Mercedes is refusing to cover the cost of the repairs and is not returning calls from customers effected by this issue. This information has been reported and added to the class action lawsuit. It was recommended that we report it here as well.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11512371March 17, 2023
ENGINE
Engine light came on there is a problem with pcv valve. This requires extensive repair
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11512388March 17, 2023
UNKNOWN OR OTHER, ELECTRICAL SYSTEM, SUSPENSION
Rusted rear sub frame that needs to be replaced. Premature rusting that Mercedes needs to repair at no cost. Also, premature battery drain on new battery. Needs to be fixed by Mercedes at no cost.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11511741March 14, 2023
UNKNOWN OR OTHER, VISIBILITY/WIPER
It is a wide-spread issue and commonly known issue that when the car battery is replaced in Mercedes-Benz vehicles, the climate control stops working, as well as the blower. The safety issues: •Car battery needed to be replaced during non-daylight hours during the winter. •Climate control stopped working immediately upon battery replacement, and issues with blower arose. •I drove home in the dark, during winter, without the ability to defrost my windows. A quick Google search for this issue will uncover an abundance of consumer complaints and common themes regarding this issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11511486March 13, 2023
SUSPENSION
A problem with the rear subframe had occurred in which it had started to rust. Due to the severity of the issue I noticed my car started veering when hitting the brakes as well multiple concerning sounds and stability issues with the vehicle. Mercedes has not contacted me about replacing the part nor has their been any warning lights or any indication of the issue being present other than when the subframe had already been rotted. When speaking to MB about the issue their was nothing they could do for me which is questionable being that the cause of this is a manufacturing issue. I have yet to receive any information as to how the issue may be resolved. Not only does this put myself at my family at risk but as well as the community around me. Wether when braking my vehicle may veer and cause a collision or an issue where the subframe fails and causes an accident.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11511575March 13, 2023
STRUCTURE:BODY:DOOR:HANDLE:EXTERIOR, ENGINE
The contact owns a 2012 Mercedes-Benz C250. The contact stated while starting the vehicle, the vehicle started very rough with a rattling sound coming from the vehicle. The check engine warning light illuminated. The vehicle was not diagnosed. On another occasion, while opening the front driver’s side door, the door handle fractured. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was 90,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11511438March 12, 2023
SUSPENSION, UNKNOWN OR OTHER
Car was garage kept and in mint condition, yet the rear subframe has completely rusted through and while breaking the car lurches to the right. Also the breaking performance is noticeably impaired. There was no signs of this failure as the car still looks new, only way of knowing was the near crash while driving and trying to stop.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11511341March 11, 2023
ENGINE
Code P052E costing me over $2500 to repair. I’m not the only one dealing with this problem and my car only has 58k miles and it’s a 2017. Should be recalled considering the part being defective.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11511208March 10, 2023
ELECTRICAL SYSTEM, COMMUNICATION
The contact owns a 2018 Mercedes-Benz C300. The contact stated that after starting the vehicle, the S.O.S. Not Active message displayed. The contact was concerned that in the event of an emergency, the emergency services function would be inoperable. The vehicle had previously been serviced under NHTSA Campaign Number: 21V058000 (Electrical System, Communication) however, the failure recurred. The dealer was made aware of the failure; however, the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 85,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11511283March 10, 2023
FUEL/PROPULSION SYSTEM
When start the engine, or idling, it smell gasoline in the cabin so bad.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11510678March 7, 2023
ENGINE
Positive Crankcase Ventilation (PCV) Can cause problem to the engine. Check engine light is on, car have been scanned. This happen one week ago. There’s no recall for this and happen a lot many Mercedes Benz causing problems on engine and is not on warranty or any other recalls
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11510714March 7, 2023
ENGINE
my 2017 Mercedes C300 experienced what appears to be a very common engine fault with the W205 engine. It involves the "PCV" valve and the engine code fault is P052E. When this fault occurs the engine will stall and sputter. My wife and daughter were in my car last week and it stalled at an intersection which could have resulted in an accident, but luckily the school crossing guards were there to stop traffic and allow her to restart the car and get to the side of the road. The check engine light had previously been on and off for sometime so I had my local Mavis check what the light was on for and they gave me the fault code. I did not think it was anything that serious because the car ran fine. The car was towed today to Mercedes to officially diagnosis the problem
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11509955March 3, 2023
STRUCTURE:BODY, SUSPENSION
The subframe assembly on my car is defective, as I learned today from my mechanic. This issue is known for my model of car and widely reported online. The mechanic says they have seen this issue before. I heard a strange noise while driving so I took the car to the shop after 60 days of enduring the sound. The shop immediately deemed the car unfit for driving and unsafe. In their words, if I had hit one bad pothole, the wheels could have come off the back of my car, and my gas tank could have been punctured, leading to a potentially catastrophic accident. I am lucky to have gotten this defective part identified before being injured, and others need to be protected from this outcome before a serious injury occurs. As of now this has only been inspected by the shop doing the fix. People online have indicated that Mercedes will not fix the problem free of charge - and in fact they charge a premium to other places to replace this faulty subframe. There were zero warning indicators of this dangerous issue - the car drove completely normally aside from an infrequent knocking sound that would occur every 5-10 minutes under normal city driving conditions.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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