seat Workshop Repair Guides

SEAT Workshop Service and Repair Manuals

Safety precautions when working on the fuel supply system > < Removing and installing parts of fuel supply system
4-cyl. Diesel engine, Mechanics
Removing and installing parts of fuel supply system
Removing and installing fuel tank with its attachments
 
N20-0076
  • Cap
  • Seal
    • ◆ If damaged only replace together with cap
  • Retaining ring
  • Rubber cup
  • Gravity valve
    • ◆ To remove valve unclip upwards out of filler neck
    • ◆ Check valve for through-flow
      valve vertical: open,
      valve tilted 45 °: closed
 
N20-0076
  • O-ring
    • ◆ Renew if damaged
  • Vent valve
    • ◆ Cannot be removed, replace together with filler neck => item 12
    • ◆ Checking , Fig.2
  • Connector
    • ◆ 2 pin
  • Non-return valve
    • ◆ Check for freedom of movement
  • Rubber grommet
  • 10 Nm
  • Filler neck
    • ◆ With expansion tank and vent valve
 
N20-0076
  • Vent pipe
  • Sealing ring
    • ◆ Renew if damaged
  • Retaining ring
  • Vent pipe
  • 25 Nm
  • Fuel tank
    • ◆ Support with engine and gearbox jack V.A.G 1383 A when removing
  • Securing strap
    • ◆ Note differing length
  • Sealing ring
    • ◆ Coat with fuel when installing
    • ◆ Renew if damaged
 
N20-0076
  • Fuel gauge sender
    • ◆ Note fitting position on fuel tank , Fig. 1
    • ◆ Sender with strainer telescopic to upper part
  • Supply line
    • ◆ Secure with spring-type clips
    • ◆ Check securely seated
    • ◆ Black
  • Return line
    • ◆ Secure with spring-type clips
    • ◆ Check securely seated
    • ◆ Blue
  • Union nut
    • ◆ Remove and install with 3217
 
N20-0077

→ Fig. 1    Installation position of fuel gauge sender

Marking on the flange must align with marking on the fuel tank.

 
N20-0073

→ Fig. 2    Checking vent valve

Valve in rest position: Closed

Valve pushed in direction of arrow: Open

Safety precautions when working on the fuel supply system > < Removing and installing parts of fuel supply system