Hi to everyone. I'm new to the Forum and have a question. Driving as a first owner a 1997 318i, US model, 4 years ago quality chip-tuned (by software) in Germany (151 HP). Months ago started making cold start problems. Most of the time it starts promptly on a 2nd try, "caughing" on the first (this means ca. 5% of the time it starts clean on the first try when cold).Cold means overnight, next morning. Even at the last Inspection II a BMW serviceman could not explain the problem, claimed that nth could be detected. At the inspection, I had the lambda-sensor replaced. Car has now some 123.000 kms. No other problems recorded, except that the check engine light comes on when driving in really wet conditions (comes off when dry. This was a cosmetic problem before the lambda was replaced. The ceck engine would come on in wet, up to the moment when it did not come off. That was before the mentioned Inspection II I had several months ago. But, to be clear - my emmission control is much BETTER than stock).
Runs excellent otherwise. Purrs, is quick, agile on the pedal. I use only premium oils, like Castrol SLX 0-30 and now Mobil1 5-50. What is the cause? Fuel? Water in the tank? Carbon build up? Should I be worried, is it a beginning of an other, more serious problem? something with the DME?
Runs excellent otherwise. Purrs, is quick, agile on the pedal. I use only premium oils, like Castrol SLX 0-30 and now Mobil1 5-50. What is the cause? Fuel? Water in the tank? Carbon build up? Should I be worried, is it a beginning of an other, more serious problem? something with the DME?
