Fuel Supply System Components, Replacing

FUEL TANK COMPONENTS, REMOVING AND INSTALLING

NOTES:
- Secure hose connections using either screw-type or spring-type clips
- Always replace spring-type clips with screw-type clips





1 - Filler cap
- Replace seal if damaged
2 - Retaining ring
3 - Fuel filler splash shield
4 - Ground connection
5 - O-ring
- Replace if damaged
6 - Vent valve
- Checking
See Fig 2 below
7 - Union nut
8 - Overflow tank
- Type shown: Wagon
- Basic tank in sedan
9 - Vent pipe
- Filling vent
10 - Vent pipe
- Operating vent
- Only for Wagon
11 - Fuel return line
- Blue
12 - Fuel supply line
- Black
13 - Union nut
- Remove and install using 3218
14 - Fuel gauge sender
- Note installed position on fuel tank
See Fig. 1 below
- Sender along with strainer telescopes with upper section
15 - Sealing ring
- Replace if damaged
- Coat with fuel when installing
16 - Mounting straps
- Note different lengths
17 - Bracket
- To secure mounting straps
18 - 25 Nm (18 ft lb)
19 - Fuel tank
- Support using engine and transmission jack VAG 1383 A, when removing
20 - 10 Nm (7 ft lb)
21 - Vent pipe
- To fuel filler splash shield item -3-
22 - Gravity valve
- To remove valve: unclip upwards out of filler neck

- Check valve for flow:
- Valve vertical: open
- Valve tilted 45°: closed





Fig. 1 Fuel gauge sender, installed position
- Marking on sender -1- must align with fuel tank marking -2-





Fig. 2 Vent valve, checking
- Lever in rest position: Closed
- Lever pushed in direction of arrow: Open