Hexagonal Shaft Rounded - and Audi would have us believe it's not a widespread issue?
2007 56 plated Audi A6 2.0TDI S-Line with 74k miles succumbs to the effects of a rounded hexagonal shaft!
Having purchased my very own piece of 'vorsprung durch technik' in November 2010, serviced it per my warranty requirements in May, including a replacement cam-belt, and driven barely 8k miles since acquiring it, I encountered the dreaded red oil pressure warning light whilst driving at full speed in the fast lane of the M4 on 30th November.
Recovered and taken to a local reputable garage, it was soon diagnosed that, like so many fellow sufferers, the hegagonal shaft had rounded over time to the point that it had totally failed. My warranty company undertook an independent engineer's report and quoted 'wear and tear' as the basis for them to reject my warranty claim. The same report alluded to the fact that this is, as is so clearly the case, a known design fault issue - so much so that it is impossible or certainly impracticle and arguably inadviseable to attempt to fix or replace the defunct shaft or the resulting damaged drive aperture because VAG changed the design of the pump such that failed components simply can not be ordered for my oil pump, leaving me with no choice than to have to order a new oil pump and furthermore I have to pay for a new sump to accommodate the re-designed and differently shaped oil pump.
With the prospect of a minimum £1500-2000 repair bill (and heaven knows if this has caused another shed load of financial pain to the turbo), I trained my efforts towards Audi. Having copied and pasted the content of the independent engineer's report to an initial customer services email, I received a call but was essentially advised that because I had not purchased the car from an approved Audi centre and had not serviced it in May via an approved Audi Centre (highly reputable though my chosen garage is) that I lacked the 'browny points' for them to consider a 'goodwill gesture'. I was also advised that there is NOT a known issue with the 2.0TDI engine oil pumps. He clearly has not taken the time to read the countless threads! I have now directed a sternly worded letter to the newly appointed UK director who takes up his position in the new year. I trust he will acknowledge that this is boderline endemic.
In the meantime, a month on, and the replacement oil pump is on back order awaiting arrival from Germany. I am at least blessed that the garage have allowed me the ongoing use of theit 144k miles Vectra courtesy car (now there's an effective oil pump!).
Who'd have thought that a standard enquiry when contemplating my purchase should have been 'Has the 'time-bomb' of an oil pump been replaced' Audi clearly have not seen fit to recall models and in truth it may not be so very widespread as to justify a recall but it surely warrants someone in authority sitting up and taking ownership and agreeing to at least share the financial hardship their poorly designed oil pump has bestowed upon me and so many like me. I'll be sure to keep you all apraised of my story as it further unfolds.