Date registered: Oct 2011
Vehicle: mercedes benz c clas 220cdi sport coupe with automatic gear box
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c class 220 cdi sport coupe starting problem
I haw Mercedes Benz C class 220cdi sport coupe.
My Mercedes takes up to 30 seconds sometimes up to 1 minute to start but when it does start it runs great (no performance problems). Sometimes it starts without any problem for few days (takes only few seconds to start), and then itâ€™s difficult to start again (itâ€™s difficult to start after every stop). I had a mobile tune come to my house he plugged in and no fault codes came up. The only thing he found was when you turned engine on is low fuel pressure, but then the engine starts the pressure is ok. His checked injectors and all 4 piston pressure in crankshaft and the pressure was ok. I hew already changed fuel filter. But no any difference after that.
Other problem, which happened few times is when you drive on motorway and you accelerating normally everything is ok, but if I want to pass someone quickly, and I hit a gas to the bottom, car accelerates for few seconds and then engine just shuts down totally, when I hew to stop and restart engine and I can drive again (the fault massage which comes up is EPC, (something that engine is not enough power)) PS. The car is with automatic gear box.
On standstill I can accelerate car to 5 rpm no problem, on motorway I can drive 200km/h no problem, car is working fine.
My idea was that something wrong is with diesel pump, it donâ€™t gives enough diesel pressure when I want to start car, so that is why itâ€™s difficult to start, and has not enough diesel pressure when I accelerating hard (not giving that boost of diesel)
So, please help me with this 2 problems