Volkswagen Workshop Service and Repair Manuals

Servicing upper part

• 5 Nm
• ◆ Install with D6
• Protective cap
• ◆ Only on replacement part for transportation protection of intake air temperature sender, must be removed after installation
• Retainer for injector with intake air temperature sender (G42)*
• ◆ Checking intake air temperature sender
• O ring
• ◆ Renew

• Injector (N30)
• ◆ Checking
• 6 Nm
• ◆ Install with D6
• Injection unit upper part
• ◆ Note fitting position
• Seal
• ◆ Renew if damaged
• Connection
• Seal
• ◆ Renew
• Fuel pressure regulator
• ◆ Checking fuel pressure regulator and holding pressure
• Plug
• ◆ Release retainers to remove

Servicing lower part

• Throttle valve positioner (V60)*/**
• ◆ With idling switch (F60)*
• ◆ Checking
• ◆ When installing ensure that the idling switch can only be operated via switch plastic plate stop screw.
  If necessary loosen bracket -4- and align.
• 6 Nm
• Idling switch (F60)
• ◆ Checking and adjusting
  
• ◆ Renewing: Renew throttle valve positioner

• Retainer
• ◆ With support for accelerator cable
• ◆ Adjusting accelerator cable

=> Repair Group 20; Removing and installing parts of fuel supply system; adjusting accelerator cable

• Protective sleeve
• Injection unit lower part
• Limiting screw
• ◆ The screw is sealed at the factory and must not be moved!
• O ring
• ◆ Renew if damaged
• Connection
• ◆ For activated charcoal filter system

=> Repair Group 20; Removing and installing parts of fuel supply system; Removing and installing parts of activated charcoal filter system

• Retainer
• 3 Nm
• Vacuum connection
• ◆ For intake air preheating
• Retaining clip
• ◆ For injection unit upper part
• Throttle valve potentiometer (G69)*
• ◆ Checking
• ◆ Must not be adjusted
• ◆ If defective: renew injection unit lower part

→ Fig. 1     Lambda probe versions

•      1 -     Un-heated Lambda probe
• (A - many cut-outs) for vehicles with manual gearbox and catalyst
•      2 -     Heated Lambda probe
• (B - drillings) for vehicles without catalyst
•      3 -     Heated Lambda probe
• (C - few cut-outs) for vehicles ▸09.94
  (with automatic gearbox and catalyst)
•      3 -     Heated Lambda probe
• (C - few cut-outs) for vehicles 10.94 ▸
  (with and without catalyst)