Hi all after my posting yesterday ,took my 90 (200 tdi) out for a short journey , vertually straight away it started whinning on aceration and as we progessed it got louder as the engine warmed up with loss of power , I think it might be the turbo - not loosing any oil but the inside of the air pipe to the air filter did have a coating of oil. Are they repairable/ expensive any replys would be greatly appreciated,cheers del