Halli hello dear community, I write the long history times in short form. I have a Renault Laguna bj.2003 2.2 Dci 150 Ps Diesel, bought the car recently and had to realize that he has a lack that I can not define exactly and hope to get good advice maybe even someone with the same problem that can help me. Oil consumption on 150Km = 1 liter oil ! Black smoke out back ! After longer standing at colder temp. white smoke cloud only at the The car was in the workshop and was looked through, tested and driven with the result: nothing to find everything ok. ! now after about 150 km again the same heavy oil consumption and black smoke wokle out the back and the error message injection defective. If I restart the car the report is gone, was up to now 2x. I would be grateful about tips and experience values. Lg Michael