AUDI TT MK1 S3 MK4 GOLF R32 CHECK YOUR EARTH STRAP

[CarChris]

I just found that my earth strap from rear diff to body was missing i have now replaced it so check if yours is still there what i used as a replacement https://www.amazon.co.uk/SRJQXH-Batte... others available

 

[desertstorm]

Very common problem, the cables just disintegrate and cause issues with the Haldex.