Audi Workshop Service and Repair Manuals

• O ring
• ◆ Renew
• Gravity valve
• ◆ To remove valve unclip upwards out of support
• ◆ Check valve for through-flow
  valve vertical: open,
  valve tilted 45 °: closed
• Vent pipe
• ◆ Check securely seated
• ◆ Clipped onto top of fuel tank
• Cap
• Securing clip

• Seal
• ◆ Renew if damaged
• Securing screw
• Tank flap unit
• ◆ With rubber cup
• Vent valve
• ◆ To remove valve unclip sideways out of support
• ◆ Before installing remove cap item 4
• ◆ Checking , Fig.2
• Earth connection
• ◆ Check securely seated
• 10 Nm
• Vent pipe
• ◆ Black
• ◆ Clipped onto side of fuel tank
• ◆ Check securely seated

• Fuel tank
• ◆ Support with engine and gearbox jack V.A.G 1383 A when removing
• ◆ Removing and installing
  
• Clamping washer
• Heat shield
• ◆ For fuel tank
• 25 Nm
• Securing strap
• ◆ Note differing length
• ◆ Installation position: Fixing point (holes) point in direction of travel
• Retaining clip
• ◆ Check seated securely

• Supply line
• ◆ Black
• ◆ Check securely seated
• ◆ To fuel manifold

=> Repair group 24; Servicing injection system; Removing and installing parts of injection system

• Fuel filter
• ◆ Fitting position: Arrow points in direction of flow
• Sealing ring
• ◆ Renew if damaged
• O-ring
• ◆ Renew
• Fuel pressure regulator
• Screw-type clip
• Sealing ring
• ◆ Renew if damaged
• ◆ When installing, insert seal "dry" into fuel tank opening

• Fuel delivery unit
• ◆ Removing and installing
  => Page 20-11
• ◆ Checking fuel pump
  => Page 20-20
• ◆ Clean strainer if soiled
• ◆ Note fitting position on fuel tank => Fig. 1
• Union nut, 80 Nm
• ◆ Remove and install with spanner 3217
• Return line
• ◆ Blue or with blue marking
• ◆ Clipped onto side of fuel tank
• ◆ Check securely seated
• Supply line
• ◆ Clipped onto side of fuel tank
• ◆ Check for secure seating

→ Fig. 1    Installation position of fuel delivery unit flange

Marking on sender must align with the marking on fuel tank -arrows-.

Blue or blue marked return pipe -1- to connection with identification -R-.

Black supply pipe -2- to connection with identification -V-.

Note:

After installing fuel delivery unit flange, check that the supply, return and breather pipes 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.