The Audi TT requires regularly scheduled maintenance to the transmission system every two years or 30,000 miles under regular driving conditions. Changing the transmission fluid on the TT takes about an hour, but it requires a special tool made specifically for Audis and VWs to open the drain and fill plugs. This tool is a specific drive bit and can be purchased at most major auto stores. Changing the transmission fluid keeps the engine running smoothly and saves money on expensive labour.
Run the car for about 5 to 10 minutes and park it on level ground.
Lift the front of the car up on a pair of jacks to reach the underside of the engine more easily. Slide underneath the car and locate the gear box which is a large metal pan in the centre of the engine. Place a 4 quart (minimum) pan beneath the gear box to catch the fluid as it drains out.
Mount the Audi drive bit into the socket wrench. Use it to remove the fill plug which is on the pipe coming from the back of the gear box. Remove the drain plug with the same socket wrench and wait about 10 to 15 minutes for the fluid to drain out. Replace the drain plug.
Place the tube from the fluid pump into the fill plug and fill it with 3 quarts of transmission fluid. The fluid should be level with the bottom of the fill hole when its finished. Notice as it starts to drip from the plug and this is when its finished. Replace the fill plug.
Lower the vehicle from the jacks.