I was hoping for some advice.
Just had my Haldex oil change done at 80k mile. its the 3rd time it been change. Drop off my car at the Audi dealer for service, got the phone call say the Haldex oil needed changing, so fair enough. Picked up my car end of the day. As soon as i drove out of the car park heard a bad rubbing sound, took it back straight away. After about 10 mins i got told the noise is coming from diff. Got told to day by the dealer it needs a new control unit cost Ł1000. plus 2 hours fitting. Got told it had a fault on it, but it's just been in for a new dash and they had problems fitting that. so i should image it went on the dyno machine then.
Now Audi UK as a good will gesture are willing to foot half the bill.