Engine Problems of Mercedes Benz C230

The cam shaft gears have worn out pre-maturely causing the vehicle to just die and not restart leaving my wife stranded. This is a direct cause of a defective part, the gear was not hardened properly.

See all problems of the 2005 Mercedes Benz C230 🔎.

The contact owns a 2003 Mercedes Benz C230. The contact stated that whenever she would start the vehicle, it would jerk violently. The vehicle was taken to a local repair shop where it was diagnosed that the cam shaft sensor was leaking and the timing chain was defective. The manufacturer was contacted who did not offer any assistance. The vehicle was repaired. The VIN was unavailable. The failure and current mileage was 92,000.

See all problems of the 2003 Mercedes Benz C230 🔎.

C230k coupe at 73,000 miles with sudden valve guides worn bad cylinder,compression loss recently in April I was called into mbz for a recall on a vacuum hose, here I am a few months later and im driving and my car starts shaking ,idling strange and then I take it to a mechanic and he figured it at first glance it may be worn valve gasket seals and I said ok let's change them and put in new plugs too. . . Then he checks the compression and discovers that it is half of what it should be, what? why should the cylinder heads be worn and need to be replaced for nearly $3000, . . . This seems to be happening too many owners of this model on here and mbzforums for this 2003-2005 years. Loss of compression in one or more cylinders. This should be recognized by mbz as a defect and since when do these engines fail at 50,000or even 80,000? I feel this should be paid for by them, this is ridiculous and should not be happening at this mileage!! defect,flaw in design. . . They need to step up and admit it at mercedes headquarters. Please help us owners , they are getting away with this, mentioning vacuum hose recalls on this 2003 year but some dealers have recognized that these engines are defective and a recall needs to be done on these valve guides/cylinder heads. Why is it that there is an inconsistency on how this problem is recognized by the dealer and handled. Some on the forums have said that the dealer screwed them if the 50,000 warranty is over and others have had the parts only paid for by the dealer and others have had the whole thing paid!! too many of these C230k engine cylinders/valve guides are going bad, they are defective and mbz should be correcting this. I should not pay $3000 to rebuild engine that has been maintained on schedule and for a car that is at only 73,000 miles thanks.

Mar 'interior dash light warning "check engine" came on. I immediately brought it to a mercedes-authorized mechanic; computer diagnostic said "fuel trim error". Mar to oct '07 following parts were replaced: all fuel injectors, spark plugs, engine wiring, all engine gaskets & 2 maf (mass air flow) oxygen sensors; additionally, the compressor unit was taken apart 7 times, and upon examination, a very small amount of oil would be discovered - 1 tsp to 1 tbsp ea time. Each time, it was impeccably cleaned. Total cost to owner over 7 months: $3,500. During car ownership, the car has been maintained according to mercedes repair schedules, using only oem parts and products - it only has 86k original miles on it - very low for an 8 yr old car. The mechanic observed that the blow back oil accumulates in the compressor, so the computer sensor thinks the engine is running too rich and will virtually shut down power to the compressor. The compressor itself was tested after each cleaning, and runs perfectly. It only when the interior compressor sensors picks up minor molecules of oil, that it thinks it is running too rich, and will not deliver power to the engine. This is especially dangerous, because it is not predictable, and when it occurs, the driven is unable to climb hills or even slight inclines, and can not exceed 65 mph without a >50% loss of power to the engine. The car can not even accelerate on a slight incline and will loose 10-20 mph as a result. It was assessed by the mechanic, after watching it for 6 mos and reinspecting 6 times (all with the same fuel trim error, and no other computer errors registering) that the blow back is from interior o rings, very deep in the engine: repair cost est: $3-5k. This type repair is not heard of on a mercedes with 86k miles, with the care taken. The car is undriveable due to the inordinate repair costs (TX dot inspection does not pass with "check engine" light problems).

See all problems of the 1999 Mercedes Benz C230 🔎.