Haldex box

[Gary C]

Hi everyone, my first post on here after taking purchase of my 2011 TT tfsi quattro with a revo stage 2 and stage 1 on the s tronic box. After enjoying driving my TT for a matter of weeks (bought from a private owner) I have broke it. On driving home from a lovely drive I started hearing some strange noises and the car wanting to pull up sharply. This happened again before I limped home. On getting home I looked under the car to see oil running out the rear section which I assume to be the haldex box.

I have put the car into an Audi specialist for them to sort it. The big question is, what cost can I expect?

Thanks for help in advance.

Gary