Hi all,
I have a quick question.....

How hard or easy is it to replace the Secondary Air Pump pipe on the 4.2 V8 TDi?
Mine is leaking and of course the engine sounds quite a bit 'heavier' now. Car starts and runs just as normal. Quietens down once warm, but you can still tell something is different.
I think the pipe is plastic, so have probably gone a bit brittle.

It does sometimes sound like a valve has opened in the exhaust and makes a bit more sound, but that is it.


My A6 2.7 TT had the same, but that was easy to fit an additional bit of plastic too to cover the gap.


Thanks!