OK bear with me , i know this has been covered a dozen times already but i haven't found my symptoms elsewhere on the forums.
2011 S3 58k miles, all oil services up to date.
I have a whine from the rear, its a mid range octave sort of hum.
It comes in at 35mph and fades out by 45, it comes in again at 70 mph has gone by 80mph and doesnt come back up to the redline in 6th.
strange thing is the pitch doesnt change with speed and if it comes in at 70mph, gentle acceleration stops it like flicking a switch.
It doesnt change on cornering, it doesnt vibrate like tires and doesnt change on ruff smooth or concrete surfaces.
I have read that pulling the Haldex controller fuse might be a pointer, pulling the hand bake on a couple of clicks disengages the 4WD ? Fuel pumps can hum but wouldn't that be constant all speeds ?
Diff oil is not a service item ?
Its been doing it now for 6k miles and has not got any worse. I am pretty deaf having spent 40 years Ducati motorbikes but this is a smooth hum that drives me mad at bang on motorway speed.
Thoughts ?
Cheers
Paddy
2011 S3 58k miles, all oil services up to date.
I have a whine from the rear, its a mid range octave sort of hum.
It comes in at 35mph and fades out by 45, it comes in again at 70 mph has gone by 80mph and doesnt come back up to the redline in 6th.
strange thing is the pitch doesnt change with speed and if it comes in at 70mph, gentle acceleration stops it like flicking a switch.
It doesnt change on cornering, it doesnt vibrate like tires and doesnt change on ruff smooth or concrete surfaces.
I have read that pulling the Haldex controller fuse might be a pointer, pulling the hand bake on a couple of clicks disengages the 4WD ? Fuel pumps can hum but wouldn't that be constant all speeds ?
Diff oil is not a service item ?
Its been doing it now for 6k miles and has not got any worse. I am pretty deaf having spent 40 years Ducati motorbikes but this is a smooth hum that drives me mad at bang on motorway speed.
Thoughts ?
Cheers
Paddy
?
. Good luck. I wish I'd
