Procedures

Fuel Tank, Draining

A - Emptying a fuel tank more than 3/4 filled.

B - Emptying a fuel tank less than 3/4 filled.

Special tools, testers and auxiliary items required

• Wrench (T10202)

• Fuel Extracting Device (VAS 5190)

• Adapter (VAS 5190 /1) from the Adapter set for Fuel Extraction (VAS 5190 /10)

Procedure

- Follow all safety precautions. Refer to => [ Safety Precautions ] Service Precautions.

- Follow the guidelines for cleanliness. Refer to => [ Clean Working Conditions ] Clean Working Conditions.

- Move the passenger seat all the way forward if necessary.


Risk of destroying electronic components when disconnecting the battery.

• Observe measures for disconnecting battery.

- Disconnect the battery - arrow -.







Risk of explosion due to electrostatic charge.

• Secure the (VAS 5190) ground wire to a bare area of the chassis.

A - Emptying a Fuel Tank More Than 3/4 Filled

• If the (VAS 5190) has a suction hose with a mounted tip, then replace this with one that has a tip which screws on.

- Remove the tip - 1 - from the fuel extraction unit suction hose (VAS 5190).






- Connect the (VAS 5190 /1) from the (VAS 5190 /10) on the suction hose.

- Remove the right 1/3 rear seat.

- Remove the bolts - arrows - and remove the locking flange cover - 1 -.






- Disconnect the electrical connector - 1 - on the locking flange.






- Push the circlip - 1 - upward - arrow A - and compress the release - arrow B -.







There is a risk of injury because the fuel is under high pressure.

• To reduce pressure in the fuel system, lay a clean cloth around the connector and carefully loosen connector.

- Disconnect the fuel line - 2 - at the locking flange by pressing the release button.






- Press the release button and disconnect the metering pump fuel line - 1 - at the locking flange on vehicles with an auxiliary heater.

- Connect the suction hose with the (VAS 5190 /1) to the locking flange supply connection.






- Extract approximately 10 liters of fuel.

- Press the release button and disconnect the (VAS 5190 /1) on the locking flange.

- Remove the (VAS 5190 /1) on the suction hose and re-install the tip.

- Remove locking ring using the (T10202).






- Pull the locking flange a little bit out of the fuel tank and slide the (VAS 5190) into the fuel tank through the gap between the locking flange and the opening.






- Extract any remaining fuel through the opening for the fuel delivery unit.

- Install the locking flange for the fuel delivery unit => [ Installing ] Fuel Delivery Unit.

B - Emptying a Fuel Tank Less Than 3/4 Filled

- Remove the right 1/3 rear seat.

- Remove the bolts - arrows - and remove the locking flange cover - 1 -.






- Disconnect the electrical connector - 1 - on the locking flange.






- Push the circlip - 1 - upward - arrow A - and compress the release - arrow B -.







There is a risk of injury because the fuel is under high pressure.

• To reduce pressure in the fuel system, lay a clean cloth around the connector and carefully loosen connector.

- Disconnect the fuel line - 2 - at the locking flange by pressing the release button.






- Press the release button and disconnect the metering pump fuel line - 1 - at the locking flange on vehicles with an auxiliary heater.

- Remove locking ring using the (T10202).






- Pull the locking flange a little bit out of the fuel tank and slide the (VAS 5190) into the fuel tank through the gap between the locking flange and the opening.






- Extract the fuel through the opening for the fuel delivery unit.

- Install the locking flange for the fuel delivery unit => [ Installing ] Fuel Delivery Unit.