Audi TT DIY Changing the TTs Haldex Fluid and Filter

I decided to change the fluid and filter on my wifes TTR this weekend. Its an easy job, and only requires one special tool, and either a standard caulking gun or suction gun for filling transmissions.The Quattro TTs rear drive-train consists of two components; the Haldex Coupling, and the Rear Final Drive. The Haldex coupling is a multi-plate, wet clutch system that