S8 Manifold flaps
 

Just come back from a long drive and I noticed this strange noise when I accelerate, it seems to be coming from the front of the V, under/in the manifold... I'm assuming I've cought the flaps in the early stages of failure.

How long do I have until I need to take this apart, I've done this job on a previous car but before it started making noise. but I use this car daily..

Thank you in advance.

How long is a piece of string? My advice would be to stop driving the car and get it done. If you continue to drive it as a daily, you may come to regret it.

Managed to find alternative transport so I'm no longer driving the car luckily.

I took the chance to take the throttle bodies off and run a test on VCDS, the flaps appear to be completely fine, back to the investigation I guess.

Update for any that are interested.

I "deleted" the flaps for peace of mind and the horrible noise went away!

I haven't noticed and difference in performance at all, and whilst I had the manifold off, I cleaned the intake and she runs so much smoother now!

Also noticed the oil filter housing gasket was failing, a decent qty of oil in the channel between the V, replaced that and cleaned up. Very time consuming job to be honest, entire thing probably took 12 hours over the course of a few weeks.

Those flaps almost "killed" my first S8 so I had no hesitation having them removed ASAP from my second one, they're a PITA :mad: Both were "de-coked" while stripped and as you say, no noticeable loss of performance.

Well done for tackling it yourself, it's quite a bill, even from an independent +++