Maintaining cleanliness when working on the fuel system
When working on the fuel system, observe the following rules regarding cleanliness.
Clean the connection areas and their surroundings thoroughly before disconnecting them.
Place dismantled parts on a clean mat and cover them. Use film or paper. Do not use lint-free rags!
Cover the mounting parts carefully or lock them with a key if the repair will not be carried out soon.
Remove spare parts from packaging only immediately before assembly. Install only clean parts.
Do not use parts that have been stored unpackaged (for example, in toolboxes, etc.).
If possible, do not work with compressed air when the fuel system is open. Try not to move the vehicle.
Draining and refilling with fuel
Warning! Be sure to pay attention to good ventilation of the workplace. Fuel vapors are toxic, avoid using open fire due to the risk of fire!
1. Additionally, perform an idle run using the fuel available in the tank.
2. Disconnect the ground (–) cable from the battery.
Attention! This will erase the radio's anti-theft code.
3. Raise the car.
4. Reduce the fuel vapor pressure by briefly opening the fuel filler cap.
5. Remove the protective cover from the fuel level sensor. Be careful not to pinch the electrical wires or fuel drain hose.
6. Remove the plug from the fuel level sensor.
7. Unscrew the drain valve screw plug.
8. Screw the drain hose together with the shut-off valve into the drain valve.
9. Open the fuel filler cap, open the shut-off valve and drain the fuel into a suitable container.
10. Remove the drain hose and tighten the screw plug to a torque of 15 Nm. First check the O-ring for damage and replace it if necessary.
11. Place the plug on the fuel level sensor and install the protective cover.
12. Lower the car (remove the jack).
13. Fill the fuel through the filler neck. Be careful that no dirt particles get into the fuel tank.
14. Close the fuel tank cap.
15. Connect the ground wire to the battery. Set the time. Enter the radio anti-theft code.
16. Start the engine and check all connections for leaks.