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definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
33,703 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2012 Mercedes-Benz C250 engine problems

engine problem

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2012 Mercedes-Benz C250 Owner Comments

problem #6

Sep 062016


  • 55,000 miles


When starting the car the vehicle make loud rattling noise and the entire car shakes. I took the car to the mechanic and he said it is the camshaft adjuster/actuators. Which need to be replaced along with the timing chain. He also said it is not safe to drive as they can fail and car will stop in the middle of a road. The car when trying to accelerate sometimes doesn't want to go and you can actually fell the car jerk seeming as the chain is skipping. It has happened multiple times. Car has 67,000 miles and this started happening at 57K miles.

- West Sacramento, CA, USA

problem #5

Sep 012016


  • miles
Dealer said the camshaft adjuster with chain tensioner needs to be replace at 65,000 miles. Also the high pressure pump needs to be replace too. This after spending over $773.06 hundred dollars on engine analysis. I decline the service because it will cost me $5,324.98 to get the job done. Could this be a safety recall because the dealer said one of this days it might just stop on the middle of nowhere. Now I am driving this vehicle with the check engine light on because of the problem I mention above.

- Seattle, WA, USA

problem #4

Apr 012016


  • 57,219 miles
The contact owns a 2012 Mercedes-Benz C250. While the vehicle was parked, the vehicle made a loud clanking noise when it was started. The failure occurred constantly. The vehicle was taken to the dealer where it was diagnosed that the exhaust camshaft adjuster failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 57,219.

- Dublin, CA, USA

problem #3

Feb 172014


  • miles


While driving on I-5 North coming from la jolla, my vehicle stopped accelerating, and suddenly stops in the middle of a busy freeway. I turned off the engine, then restarted after five second. After restarting my vehicle it started running again. This has happened three times already, and have brought my vehicle to the service center (on each occasion). Service report indicate transmission error. At times, the "slippery road" sign on my dashboard would blink even though the weather is hot or has not rain for ages.

- San Diego, CA, USA

problem #2

Jun 182015


  • 47,000 miles
Ref: NHTSA id number: 10676804 summary: Camshaft intake adjuster replaced thermostat seals replaced chain tensioner replaced my 2012 mb C250, while still under warranty by year and mileage, was declined to be service by Mercedes Benz of cutler bay, Florida. There reasoning is that I did not use a mb oil filter; they have cancelled my warranty. Even though I have done all the proper oil changes sooner that the mb recommendations.

- Miami, FL, USA

problem #1

Oct 202014

C250 4-cyl

  • 43,000 miles
Camshaft intake adjuster replaced thermostat seals replaced chain tensioner replaced.

- San Antonio, TX, USA

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