Quote:
Originally Posted by IT
Very long shot, but can it be low on gearbox fluid ?
If so, it can cavitate under acceleration and the bubbles in the oil make a brief whistling sound.
It would be more prominent when cold, and would happen at idle revving in park as well as when driving....
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I thought about the gearbox oil but wanted to clarify frist before stealer takes £230 for gearbox oil + filter.
It makes the noise whether is cold or hot but only when you floor it at any speed..1/2sec of wriiim or sort of 
I never floored the pedal while in idle but did rev it up to 4k but no noise.
is barelly noticeble and passanger dont notice the noise..only when I ask did you hear it?? what?? that wriim..nooo I did not...once I floor it 2x they say oh yes..
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 Audi A8 D3 2003 3.7 V8 petrol, Oyster gray with black interior
19" alloy, Sport suspension transmission and seats, HID headlights, Phone in armrest, 4zone AC, Sat-Nav, TV, Dimmable exterior mirrors, VCDS
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