On my phone, so to cut a long story short, I have an A3 Quattro 2006 8P2 TDI 2L
When I accelerate harshly, I get a loud humm (constant).
When I reach 75mph & in 6th gear, I get a humming vibration, it resonates on and off continuously. Go above 80Mph and it goes away...
I read I could disable Haldex by putting the hand brake on 1 click, I did this and went for a drive:
No vibrations when accelerating.
Only an extremely mild version of the above at 75mph in 6th. Hardly noticeable.
I then took the handbrake off and BOOM! Vibrations.
Haldex is shot? Oil change? Filter change? Pre charge pump? Per credit card max out pump? :( sell the car change?
No errors on VCDS at all.
Googled the hell out of this one to get this far! Hope someone can help with the above info.