All Wheel Drive (AWD) Vehicles
Fuel tank, emptying
A - Procedure for emptying more than 1/3 full fuel tank.
B - Procedure for emptying less than 1/3 full fuel tank.
Special tools and equipment
^ VAS 5190
or
^ VAG 1433 A
Procedure
Observe safety precautions.
Observe rules for cleanliness.
^ Note radio code (for vehicles equipped with coded anti-theft radio). Obtain if necessary.
Vehicles equipped with 4-cylinder engine
^ If installed, remove cover above battery.
^ Open battery protective casing (Velcro).
^ Switch ignition off and disconnect battery Ground (GND) strap (arrow).
Vehicles equipped with 6-cylinder engine
^ Switch ignition off and disconnect battery Ground (GND) strap (arrow) under trunk floor.
All:
WARNING:
^ Secure VAG 1433 A or VAS 5190 Ground wire to a bare metal part on the body.
A - Procedure for more than 1/3 full fuel tank
^ Remove filler cap from fuel tank filler neck.
^ Detach tapered adapter -2- from shaft end -1- of VAS 5190.
^ Make a mark (arrow) on hose at distance a = 1415 mm from end of drain hose using insulating tape.
^ Fit shaft end -1- of fuel extractor VAS 5190 onto fuel tank filler neck.
^ Push drain hose into fuel tank until marking on drain hose (arrow) coincides with shaft end.
Note: On the lower end of the fuel filler unit, there is a spherical valve -2- in the fuel tank -1-, which must not be excessively pressured or damaged via the siphoning hose -3-. Therefore, hose should only be inserted to marking (arrow).
^ Remove fuel from tank as much as possible via fuel filler unit.
^ Carefully remove siphoning hose.
^ Remove fuel pump.
^ Siphon remaining fuel in right chamber of fuel tank through opening for fuel pump.
^ Insert hose in left chamber of fuel tank and siphon remaining fuel.
Note:
^ The procedure when using a fuel extractor without shaft end is basically the same.
^ In this case make a mark on drain hose at distance a = 1350 mm from end of drain hose using insulating tape. The drain hose is fitted properly when marking on drain hose (arrow) coincides with rim of filler neck.
^ If the hose does not go in easily, lubricate lightly with engine oil. Never use lubricants containing silicone.
B - Procedure for less than 1/3 full fuel tank
^ Remove fuel pump.
^ Siphon remaining fuel in right chamber of fuel tank through opening for fuel pump.
^ Insert hose in left chamber of fuel tank and siphon remaining fuel.