Si vrei sa spui ca o turbina noua a rezolvat probema ? Eu nu am auzit de o turbina stricata care sa mearga aleator rau si fara sa scoata fum, sau consum exagerat de ulei, am gasit un raspuns undeva pe un site strain: There is a vacuum control valve on the inlet manifold side of the engine, which controls the boost pressure actuator on the turbo. I have seen a few cases where the filter on this valve gets clogged preventing it from controlling the vacuum correctly and so the turbo is not actuated as it should be. The filter on this valve is not a serviceable item, so can't replaced separately, but it can be removed to see if this has an effect on the performance. If it is OK after removing this filter you should replace the whole valve. Another possibility is that the EGR valve on the engine may be clogged and sticking, so affecting the mixture entering the engine. If you remove the pipe from the front of the EGR valve you should be able to check visibly the condition of the valve. It will have some soot around it, but still move freely when the engine is running. cred ca este piesa 3 de aici: http://bmwfans.info/parts/catalog/E53/SAV/..._turbo_charger/