All 4 cam shaft sensors failed at the same time.

- Richmond, CA, USA

Dtc 1208 code appears. Due to positioning of timing chain relative to crankshaft. Engine M272 caused by worn sprocket on the balance shaft of engine. Mercedes has repair kit available but has modified this problem on newer vehicles. This is a common occurrence on this engine, and should be part of a national recall compaign. The internet is full of complaints over this and I believe there is currently a class action law suit about this.

- El Dorado Hills, CA, USA

Vehicle seems to run fine but after a cold morning start the check engine light illuminated. After taking it to the dealership for diagnostics (totaling $105) it was revealed that the code rendering the balance shaft or possible bad sensor was the reason for the check engine light illuminating. The estimate cost for this repair is ranging from 5 to 6 grand. This is highly unacceptable for a vehicle with only 45,000 miles. 2007, Mercedes Benz, C230, black on black, that has been stored for a majority of its existence because I am deployed overseas does not send a good impression when the company will not admit that there is a definite problem with this engine type. In today's economy, consumers spend a little more to reassure this type of repair is avoided by purchasing a more reliable source of transportation. I guess I should have purchased a Chevy or Ford, at least then I would be expecting this type of nonsense.

- Houston, TX, USA

Although I no longer have the vehicle as it was leased, around a year, a year and 4 months ago, my Mercedes Benz was making a weird noise from the engine as well so my check engine light had been on for weeks/months. When I took it into a mb dealership they had to first get my approval to take apart the engine to diagnose the problem, of course I said ok since it was a leased car. Once they found out the problem they suggested I needed a new engine based on a problem w/ the cylinders and that the fact I hadn't given the vehicle the proper oil changes, however I believe it was a problem caused by the balance shift gears. So they told me that it was going to cost me around $7000 to fix the problem by putting in a brand new engine, I asked if mb could help w/ the cost but they refused, claiming that since I didn't have a record of sufficient oil changes they wouldn't help....so I had a tow truck pick up the car from the mb dealership and take it to another shop where they found an engine and put it in for a little less, I had to have it done since it was leased and I had to return it back to mb. I hope that mb takes responsibility for this.

- Round Lake, IL, USA

The engine light came on asking me to go to the next gas station and check oil. When I took to the next day to a mechanic and upon a thorough diagnostics, I was told that the balance shaft (in take camshaft code 1208) and exhaust camshaft, code 1200 need to be replaced due to premature wear and faulty parts.

- Clifton, VA, USA