With A Faulty Fuel Pump
Vehicles with engine codes BGQ and CBUA have a bayonet connection. The MY 11 Jetta with engine code CBTA has a 90° connection. These vehicles require a special adapter.
If the adapter is not available, the threaded part of the fuel siphoning unit must be held in place.
The fuel tank has a check valve installed. Be careful not to damage this check valve while extracting fuel.
Secure the fuel extracting device VAS 5190 ground wire to a bare area on the chassis.
-- Remove the cone piece -2- from the shaft piece -1- of the fuel extracting device VAS 5190.
-- Using insulating tape, apply a mark -arrow- on the suction hose at length of 1500 mm -a- from the end of the hose.
-- Remove the fuel cap from the fuel filler tube.
-- Install the shaft piece -1- on the fuel extracting device VAS 5190 into the fuel tank filler tube.
-- Insert the suction hose into the fuel tank until the mark made earlier -arrow- is aligned with the shaft piece and extract the fuel. Refer to the fuel extracting device operating instructions.
The duel tank is drained almost completely.
Do not use force to pull the suction hose out it if gets stuck on the check valve.
- In this case, remove the fuel delivery unit and manually hold the check valve open. When doing this, make sure your arm does not come in contact with the fuel.