Mercedes-Benz C-Class Complaints (2016)

323 consumer complaints on file.

#11545888September 21, 2023
ENGINE
P052E - PCV Regulator Valve Performance: Actuator Stuck P06DA - Engine Oil Pressure Control Circuit/Open no sub type information My understanding is these are common issues and Mercedes and anyone who works on them know it is a common issue for all lines. I also have a broken sunroof that seems to be common on all lines. There are some recalls out for the sunroof but not for the C-Class C300, although all of the videos I have found match the same issues that were recalled on other models. The dealer confirmed these are known issues.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11545313September 19, 2023
ENGINE, FUEL/PROPULSION SYSTEM
Engine light on smells gas constantly tried to change oil that did not work light came back on
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11544524September 14, 2023
SERVICE BRAKES
i have been noticing a hissing sound coming from the brake paddle for almost 3 weeks. upon some online research i found out it could be a brake booster and there was a recall for the same car brand due to issues with brake booster in past but not included year 2016. vehicle not inspected yet.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11543316September 7, 2023
ENGINE
CRANKCASE VENTILATION- code: P052E came up and I had just bought from the dealership with 87k miles
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11542440September 4, 2023
POWER TRAIN
Started smelling gas then check engine light came on took it to mercedes they did diagnostic which said low boost and that I needed to replace the turbocharger at a cost of over $7000
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11538175August 13, 2023
UNKNOWN OR OTHER
My check engine light popped on with code p052E for the Positive Crankcase Ventilation Regulator Valve Performance.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11537572August 10, 2023
POWER TRAIN, UNKNOWN OR OTHER
Check engine light comes up. The crankcase ventilation has to be replaced. This is a well known defect in design by Mercedes Benz and there are hundreds of people who have had to replaced the crank case costing thousands of dollar to only have it happen again due to its faulty design. It’s well documented all over the Internet.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11535168July 29, 2023
FUEL/PROPULSION SYSTEM
It is such a common issue reported by many 2016 c300 owner who experienced error code p052e bad Pve valve. My car only has 40,000 miles. I think the manufacture should be responsible for a recall. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11534364July 25, 2023
UNKNOWN OR OTHER
My sunroof shade is stuck open which makes my extremely hot . I’ve been burned twice by my seat . My car has 93,000 miles .
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11532889July 18, 2023
UNKNOWN OR OTHER
The code P052E reads at only 49.000 miles....Mercedes wants $3000.00 to repait ir (replace PCV valve ). Car runs and drives normally....its probably a faulty sensor. I have seen a lot of posts with owners havins same issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11533049July 18, 2023
ENGINE
PVC valve replacement Engine light off and on Started about 3 months ago
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11531569July 11, 2023
STRUCTURE:BODY
Panoramic sunroof is closing right way. While when i drove air comes in .
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11531128July 9, 2023
ELECTRICAL SYSTEM, UNKNOWN OR OTHER, STEERING
The small plastic located inside the sliding panoramic sunroof explode and the Panasonic sunroof can be open/close or up/down normally but when I hit close it will stop where the broken pieces was and the roof will automatically move back to the fully open position Dealer said need the rail replaced -2057800175 -2057800275 Motor is broken, need to be replaced , he said after saying the roof can go forward and backward, up and down but can’t close completely. I was gullible to believe what the technician and sale guy said. Technically technician can check the voltage and say it for sure if it is broken. Also, a technician already knew that the sliding rail is damaged. He jumped to the conclusion that motor is broken because of sunburn. I have asked my nephew what he would do in this situation. He innocently said he would replace new sliding rails first and try to run if the “alleged motor “ is really broken. If it is broken, he can just switch to a new motor before testing to confirm it working. He wouldn’t decide to buy a new motor that cost $1,400 extra while the old one might be working properly. Anyway, labor with rails and “motor” cost $3500. Then later I learn I’m not alone. How many affected from this defective parts that Mercedes doesn’t sell it separately. Owner must buy 2 set of rails- a left set and a right set. Cost $1100 total. So since the number of affected are pretty high, a few factory in China and turkey decides to produce these little and sell it online for $15-92, glue and lubricants included. -number of owners struggling to find parts https://mbworld.org/forums/c-class-w205/734208-pano-roof-failure-2.html Parts that Mercedes cannot sell it separately so owners have to buy 2 sets left set and right set rails. “Try words like repair sunroof kit for Mercedes “ on eBay only a few couple thousand people buying it in 2022 alone. https://www.ebay.com/p/28019877104 Motor broken? https://c.xtime.com/tvyUiiMwuwoA2L8JXX#/completePage
Crash:
No
Fire:
No
Injuries:
1
Deaths:
0
#11527138June 15, 2023
FUEL/PROPULSION SYSTEM, POWER TRAIN
I was just driving normally boom engine light comes on take it to the dealership and it come up as crank case vent line which they quoted me 2300$. I think this should be recalled I have seen so many people with the same issue I have actually had someone tell me this was the only major problems with the w205 c300 before this happened. I think it should be recalled because from what I’ve seen it happens to every single c300 just at different mileages. Hopefully this will get a recall because it seems to be a very common issue and should be covered by the dealer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11526691June 12, 2023
ENGINE
I have a problem that happened with a trouble code: P052E. It appears for now reason so the problem is in a faulty positive crankcase ventilation regulator valve. It costs a lot and not all the mechanics can do this type of work.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11526403June 10, 2023
ELECTRICAL SYSTEM
My car had a problem about starting so I went to see a dealership. They got the job done and charged me $320. I just realized that in the invoice they used recall campaign to cover my car. However, they charged me $320 for no reason. Also, I never got any letter regarding to recall. How did they used recall campaign on my car?? And I recently had a sunroof derailed and they used the campaign again but charge me $2700 for it. And of course my car isn’t in their recall list?? I never got a letter as well
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11526152June 9, 2023
ELECTRICAL SYSTEM, ENGINE, FUEL/PROPULSION SYSTEM
Engine misfire, rough idle, shake when come to red light stop, burnt smell inside cabin, loss of power
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11526231June 9, 2023
FUEL/PROPULSION SYSTEM
Vent valve failed and needs repair. I could smell gasoline from my car weeks up to the check engine light going off. These leaking fumes are a hazard to the population and environment. This problem is quite common on Mercedes forums such as MBWorld. This car was diagnosed at an official Mercedes Benz dealership (New London, CT). The check engine light came on weeks after symptoms started to appear (on and off).
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11526045June 8, 2023
FUEL/PROPULSION SYSTEM
This auto has approximately 45,000 miles on it and was found to have a fuel leakage issue on a high pressure pump and a fuel hose. Gas smell was very bad and upon inspection, gas was leaking at the hose / pump connection directly onto the engine. I had the defect repaired for a total of $1288.57 and tried to submit the claim to Mercedes. I found out that this issue has been a problem for Mercedes and they have published an extended warranty rather than issue a recall. Mercedes has now declined the complaint and because this seems to be a major issue I wanted to press this with your agency. Please let me know if you would like any additional documentation regarding this matter. Thank you - [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11524763June 1, 2023
FUEL/PROPULSION SYSTEM, ENGINE
Check engine light P052E, PVC valve. Dealer wants $2,500 for this repair and people are complaining that around 30k-50k it does it. Thats ridiculous. My dealer said its a common issue but Mercedes is not issuing a recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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