My friends 330d lost alot of power, he has since put a new MAF on and still has issues, some error codes relating to Air Charge system wich I think relates to the MAP \ Boost sensor so have ordered one. In the mean time I am thinking and have read that the Adaptations should be cleared if you install a new MAF ??????????
Problem is I can't bloody find where to do it. using INPA 5.00 or maybe 5.02. Anyone point me in the right direction please.