Thanks for the advice, I checked and it doesn't seem to be created by the air compressor, although .........does that system used 'stored air' and doesn't always run the compressor when adjusting height?
Is there anything that can be done to a noisy compressor if is that, sprayed with WD40 for example?!
The noise does also seem to be rev related. After further exploration it sounds like it is coming from the N/S rear of the engine. Not audible from the inside unless the window is open.
It stops after 5-10 secs when pausing at traffic lights etc.
Are there any secondary pumps/systems it could be in that area? Oil cooler or pump for example. Just had a new V belt and thought it could have been that at first but obviously it's at the front and running all the time.
I am very confused.
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'09 D3 S8 - Most of the bells and whistles (B&O, Audi Exclusive brown interior and exterior paint, soft close, ACC etc) de-flapped manifold!
Last edited by Audidothat; 22nd August 2017 at 12:29 PM.
Reason: Additional text
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