TT Quattro Coupe L4-1.8L Turbo (BEA) (2003)
Removing
-
Remove fuel tank. Refer to "Fuel Tank With Attachments, Removing and Installing (Front wheel drive)", See: Service and Repair
-
Remove valve by unclipping sideways and remove from delivery unit.
-
Remove hose coupling by pressing release button.
Checking
-
Blow into hose -2-.
-
Button -1- at rest: it must not be possible to blow through hose.
-
Button -1- pressed in direction of arrow: it must be possible to blow through hose.
Fig. 2 Removing, installing, and checking gravity valve
Removing
NOTE: Gravity valve -1- can only be replaced together with pressure retention valve and vent line -3-.
-
Remove fuel tank. Refer to "Fuel Tank With Attachments, Removing and Installing (Front wheel drive)", See: Service and Repair.
-
Unclip pressure retention valve.
-
To remove, unclip gravity valve upward and lift out.
Checking
-
Hold valve in installation position.
-
It must be possible to blow through hose.
-
Tilt valve 45°
-
It must not be possible to blow through hose.
NOTE: O-ring -2- must not be damaged; replace if necessary.