Hi all, I've been at the receiving end of your great advice in the past but this time it's needed more than ever......I've just had my car diagnosed and it came up as the haldex, but I've been told it's the wiring side of things. Apparently I need a repair kit at the cost of £840! (Without labour!!) It's no bigger than a spark plug!! The part number is obr 598-554c and just wondered if there was anywhere that i could get it cheaper as that's direct from Audi! Thanks for any help guys......if anyone can help its you lot!!!