Hi, just put my 2001 A6q 2.5tdi 180 sport in for service at 111k miles and I find it needs new camshafts - they have worn through the case hardening on both exhaust camshafts. The car has been serviced in accordance with instructions by an Audi dealer since new, and not been mistreated, so it looks to me like a manufacturing defect.
Does anyone know anything about this or had any experience of camshafts wearing out on this model?
TIA