A few m8's now have had turbo failures, and I was wondering if this is normal to the 1.9 tdi at a certain point in their life. Is it a lack of lubricant or some other mechanical fault. One friend chipped his car out twice from 140 to 170 and was told that because he had not increased the psi in the turbo it would likely fail again before long. Not sure on how true that would be. On the other hand I know people who have never had a problem with their turbo's including the daughter's 1.9 2002 tdi sport which has done 225,000 now.