| Re: DEPOLLUTION SYSTEM warning Took c4 to citron work shop put on analyzing machine. Analyzing fault that came up was cold start fault. Told they reset the computer fault did not came up again. But to keep eye on situation. Two day later fault reappeared. But the car was not even cold. Rang up, they said bring car for more test. But most properly, a faulty sensor. I have stop using bio-D for now. So if there anybody out there who does use it on this particular engine 2.0L HDi lets as know as am not very confidant at the moment. But I still use bio-D on work vehicle Thank you for your useful comments and keep them coming. Mr. English |