Fuel Filter: Service and Repair

Fuel Tank/Attachments/Fuel Filter, Removing and Installing







1 - Sealing cap
2 - Seal
- Replace if damaged
3 - Tank flap unit
- With rubber cup
4 - Securing screw
5 - Gravity valve
- To remove valve unclip upward out of support
- Check valve for flow:
vertical: open
valve tilted 45 ° : closed
6 - O-ring
- Replace if damaged
7 - Vent pipe
- Black
- Clipped onto side of fuel tank
- Check securely seated
- Secure with spring-type clips
8 - Vent valve
- To remove valve unclip sideways out of support
- Before installing remove sealing cap item 1
9 - Ground connection
- Ensure securely seated
10 - Supply line
- Black
- Clipped onto side of fuel tank
- Ensure securely seated
- Secure with spring-type clips
- Between flange -item 14 - and fuel filter -item
11 - Return line
- Blue or with blue marking
- Clipped onto side of fuel tank
- Ensure securely seated
- Secure with spring-type clips
12 - Connector
- Black, 4-pin
- For fuel gauge sender -G- and Fuel Pump -G6-
13 - Union nut, 60 Nm
- Remove and install with spanner 3217
14 - Flange
- Note installation position on fuel tank
15 - Sender for fuel gauge -G-
- Clipped onto reservoir housing in fuel tank
16 - Supply line
- Ensure securely seated
- Between flange -item 14- and fuel delivery unit -item 17-17- 17
17 - Fuel delivery unit
- Clean strainer if soiled
- Only replace complete with flange and supply line
18 - Sealing ring
- Replace if damaged
- Coat with fuel when installing
19 - 25 Nm
20 - Fuel tank
- Support with engine and transmission jack VAG1383 A when removing
21 - Bracket
- For securing straps
- Note installation position
22 - Securing strap
- Note differing length
- Installation position: Attaching point (holes) point in direction of travel
23 - Retaining ring
- Secured to body
24 - 10 Nm
25 - Fuel filter
- Installation position: Arrow points in direction of flow
26 - Supply line
- Black
- Ensure securely seated
- Secure with spring-type clips
27 - Return line
- Ensure securely seated
28 - Breather
- Ensure securely seated
- Clipped onto top of fuel tank







Fig. 1 Installed position of fuel delivery unit flange


Mark on flange -1- must align with mark on fuel tank -2-.


NOTE: After installing fuel delivery unit flange, check that the supply, return and venting lines are still clipped onto the fuel tank.


Fig. 2 Checking vent valve







Lever in rest position: Closed

Lever pushed in direction of arrow: Open


NOTE: Before installing vent valve remove fuel tank cap.