Quattro binding > centre diff oil change

[snapdragon]

I recently noticed my A8's Quattro binding was getting a bit severe such as when parking or u-turn.
When I first bought the car I don't think it did it.
Got the centre differential / transfer case fluid changed for FUCHS Sintopoid FE75w85 and after a couple of weeks, I can safely say it no longer binds. So if yours does then an LSD-compatible fluid change may be just the ticket.
Mine probably started to get noticeable at 200,000 miles.

Best part was the bill