Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2006 Mercedes-Benz C230 owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2006 Mercedes-Benz C230. The contact stated that while driving at an undisclosed speed, the vehicle started leaking oil. The check engine warning light was illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact related the failure to an unknown recall. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 172,000.
The car randomly misfires and goes into limp mode with a flashing check engine light. This has occurred on roadways and the vehicle loses all engine power. My engine code, 272920 30 183997272.920, falls into a known range of balance shaft gear problems with this motor. There was previously a settlement by the manufacturer to repair the motor but I was unaware of this settlement before purchasing this vehicle as there was no official recall. I am being told the repair requires pulling the motor out which is quite a high cost. The problem has been confirmed by an independent mechanic inspecting the camshaft timing. There were no other indicators of this failure before the check engine light came on and flashed.
My Engine light came on and I took it to Star Motors. They reported two codes, 1200 and 1208. This means a bad Balance Shaft. This balances the engine and controls the timing belt. I had three choices they said, Repair it for $5,900.00 ....Yes that's right. Sell the car or drive it till it dies. I asked what that meant. They said the car will just stop, freeze and size up, it could happen at anytime. So I'm driving a time bomb basically..
The intake manifold has a plastic tumble flap mechanism. This commonly breaks in most of these Mercedes Benz vehicles. The main problem is the high cost of repair due to it's location in the engine under a complex wiring harness. Mercedes has never issued a recall, but this problem can lead to catastrophic engine failure. This problem is very well documented on many websites.
The timing chain failed without warning causing the vehicle to cut off while driving 75 mph on the highway. The service engine soon late was not on at all so there was no warning that something was wrong with the vehicle.
To whom this may,I been having problems with check engine light keep coming on,I'm paying alot of money on this car,it could be that recall hose on back order causing that check engine light to come on,please HELP!!!!!!
My first incidence was driving and the steering would all of a sudden get stiff like it needed power steering fluid or something. Check it wasn't the fluid (this happened a few month ago I thought hmmm probably just something freaky) then 1/8/16 riding down the busy interstate highway the car acceleration just left. I pressed the accelerator to the floor but no speed. It was extremely scary. I had the car checked out...it's the classic problem I never heard of until today. ( intake manifold tumble flap) some plastic junk on an expensive car. If I wanted a junk car I would've went to the "junk yard" paid like 250. And be done with it. I'm very disappointed and angry. I'm glad my kids wasn't in the car and it wasn't a horrific outcome. …
Takata recall" 2006 Mercedes Benz C230 I was driving home and my car started misfiring really bad, the check engine light came on and started flickering and stayed on and the lights in the car on the dash and on the radio started to flicker on and off and then the car just was limp it wouldn't even pick up speed it was slowing down on the freeway with very busy traffic .I was scared for my life and my friend that we were going to come to a complete stop in rush hour traffic . I tried to hurry home but it was would not pick up speed it keep going slower and slower and when we had to slow down or stop due to traffic it actually turned completely off twice and I was so scared that an acceident would happen it was misfiring and just a terrible experience this should be some kind of recall or something they need to look into it abc fix it before someone gets hurt or worse .
Tl* the contact owns a 2006 Mercedes-Benz C230. When the vehicle was started, the check engine warning indicator illuminated and 'cam shaft balance calibration, sensor one and sensor b' appeared. The contact stated that the failure occurred for approximately two months. The vehicle was taken to garage isla verde (avenida baldorioty de castro, kl 10.3, carolina, pr 00979) where it was determined that the balance camshaft needed replacement. The contact owned two other Mercedes Benz c230s, which also experienced the same failure. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 131,000.
My check engine light is on. I had it looked at by my mechanic. He confirmed that it is the balance shaft. This needs to be replaced. I researched this problem and found many Mercedes 230 models have this manufacturer's problem because the piece was cheaply made. This is a problem with your Mercedes C230 2006 and 2007 models. In 2008 C230 model this was replaced with a quality balance shaft piece which eliminated the problem. I would like for Mercedes corporation to pay for the full cost of my repair because it is a manufactured faulty piece used in the 2006 and 2007c230 models. Please let me know details to get this paid for. Thank you!!
Engine complaints in other C230 years
Frequently asked questions
How common are engine problems on the 2006 Mercedes-Benz C230?
NHTSA has 53 complaints about the engine & cooling of the 2006 Mercedes-Benz C230, 46% of the model year's 116 complaints. The component named most often is engine (6 mentions).
Is there a recall for 2006 Mercedes-Benz C230 engine problems?
No. NHTSA lists no engine & cooling recall for the 2006 Mercedes-Benz C230, though it has 5 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2006 Mercedes-Benz C230 engine problems start?
Half of the complaints with a recorded mileage happened before about 74,000 miles.
Is it dangerous?
Owners linked 1 crash, 0 fires and 0 injuries to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.