So, rang up audi dealership to book in for servicing and thought haldex oil was a serviceable part, the person on the phone said this doesn't need changing as it is a sealed part for my year/model. Does this sound right? Or has anyone changed their haldex oil? Own a 2007 gen 1 R8 V8 MT. Also...

Good morning guys I’m Gee from the U.K. . I have a v10 plus and the car is driving me nuts there is a odd noise coming from what seems life the front of the vehicle after a hard drive and it only seems to be there on coasting or very slow speed the diff has been out to check apart for a need to...