2. Connect the diagnostic tool to the diagnostic connector (see Chapter 5) and use it to make sure that the DSG fluid temperature is no more than 35°C. If necessary, allow the fluid to cool down. Sections 3-8 describe filter replacement, and sections 9-14 describe oil replacement.
3. Remove the top engine cover (see Chapter 2).
4. Disconnect the connector (2 on the accompanying illustration) mAF sensor, disconnect the ventilation hose (1) and the air duct (5). Loosen the spring clamp (3) and remove the hose from the tube. Loosen the screws (4) and remove the air cleaner.
21.4 Providing access to the DSG filter
5. Raise the vehicle and remove the sound insulation panels under the engine. Place a container under the transmission to collect the DSG fluid and lower the vehicle.
6. Unscrew the lid (1 on the accompanying illustration), tilt the filter (3) slightly to allow the oil to drain out and remove it. Install a new sealing ring (2), having previously lubricated it with DSG fluid.
21.6 DSG Filter Installation Details
7. Wet the sealing ring in the receiving sleeve (see accompanying illustration), install the filter and tighten its cover to 20 Nm.
21.7 DSG filter seal
8. Reinstall the removed parts.
9. Jack up the car and place it on reliable supports so that the car is horizontal.
10. If present, remove the protective plate (1 on the accompanying illustration) from below the DSG by unscrewing the bolts (arrows). Put on safety glasses and gloves.
21.10 DSG housing
11. Unscrew the filler plug (In the accompanying illustration) next to the rocker support. Behind it is a plastic overflow tube with an 8 mm hexagon. The length of this tube determines the DSG fluid level. Unscrew the overflow tube - about 5 liters of DSG fluid will flow out. Screw in the overflow tube with a force of 3 Nm.
21.11 Plug (B) of the inspection filler hole
12. Screw the adapter into the DSG inspection hole (And on the accompanying illustration) filling device VAS6262 or VAS6262A. Connect a container with DSG fluid to the filling device and fill the DSG with 5.5 litres of fluid.
21.12 Adapter (A) of the filling device
Note: Do not refill with drained fluid. Shake the fluid container before refilling. If you need to change the container, close its valve while disconnecting the container from the filling device.
13. Read the temperature using a diagnostic tool. Start the engine, press the brake pedal and move the selector lever through all positions, waiting in each of them for about 3 seconds. Finally, return the lever to the "P" position. Do not turn off the engine, monitor the DSG fluid temperature. When the temperature reaches a value of 35 to 45°C, disconnect the adapter and allow excess fluid to drain.
14. When the DSG fluid level is correct and the temperature specified above, a small amount of fluid will flow out of the overflow pipe every 30 seconds. This is due to the pulsation of the clutch cooling fluid level. There is no need to compensate for the volume of dripping fluid. Tighten the check bolt with a new seal to 45 Nm and turn off the engine.