Recent content by Bossj90

Its the qcv quality control valve by the sound of it as it happened om mine

Hi guys I had bought a c220 w204 cdi automatic 2.2 saloon diesel And experienced a headache of an issue which turned out to be the qcv quality control valve fuel valve Below are symptoms Poor idle power flatspots Esp mil light on when foot down hard Idle fluctuation 0.7 to 0.9 revs With...