Volkswagen Workshop Service and Repair Manuals

• Plug
• ◆ Note installation position
• 3 Nm
• ◆ Notes on installing
• Air cleaner
• ◆ Dismantling and assembling => Page 24-24
• ◆ Removing and installing air cleaner
  => Page 24-27 , Fig. 3
• Cable guide
• ◆ Clipped onto fuel rail
• 10 Nm

• Fuel manifold with injectors
• ◆ Dismantling and assembling => Page 24-21
• Intake manifold
• ◆ Dismantling and assembling => Page 24-18
• From activated charcoal filter solenoid valve (N80)*/**

=> Repair group 20; Activated charcoal filter system

• Connector
• ◆ Grey, 8 pin
• ◆ For throttle valve control part (J338)
• ◆ Connector contacts are gold-plated
• From brake servo

• Gasket
• ◆ Renew
• Connecting pipe
• ◆ Only vehicles with engine code AHW
• ◆ From exhaust gas recirculation valve:

=> Repair group 26; Exhaust gas recirculation system; Servicing parts of the exhaust gas recirculation system

• 5 Nm
• Engine speed sender (G28)*
• ◆ To remove, remove intake manifold item 7
• ◆ Checking => Page 24-71
• ◆ Fitting location => Page 24-1 , fitting location overview

• Lambda probe (G39)*, 50 Nm
• ◆ Grease only the threads with "G 052 112 A3"; "G 052 112 A3" must not get into the slots on the probe body
• ◆ Remove and install with ring spanner 3337
• ◆ Checking Lambda control
  => Page 24-92
• ◆ Probe heating voltage supply via fuel pump relay (J17)
• ◆ Checking Lambda probe heating => Page 24-32
• ◆ Check probe heating for continuity
• ◆ Fitting location => Page 24-1 , fitting location overview
• 4-pin connector
• ◆ Black
• ◆ For Lambda probe and Lambda probe heating
• ◆ Connector contacts 3 and 4 are gold-plated
• ◆ Fitting location => Page 24-1 , fitting location overview

• Thermostat housing
• Retaining clip
• ◆ Check seated securely
• O ring
• ◆ Renew if damaged
• Plug
• ◆ If necessary release pressure in cooling system before removing
• Coolant temperature sender (G62)*
• ◆ For engine control unit
• ◆ With coolant temperature gauge sender (G2)
• ◆ If necessary release pressure in cooling system before removing
• ◆ Checking
• ◆ Resistance value between contacts C and D
  , Fig. 1

• Connector
• ◆ Black, 4 pin
• ◆ For coolant temperature sender (G62) and coolant temperature gauge sender (G2)
• Retaining frame
• Connector
• ◆ Only disconnect or connect with ignition switched off
• Engine control unit*
• (Control unit for 4CV injection system-J448)
• ◆ Checking voltage supply => Page 24-103
• ◆ Renew => Page 24-106
• ◆ Coding => Page 24-109
• ◆ Fitting location => Page 24-1 , engine compartment overview

• Warm air intake hose
• ◆ From warm air collector plate:

=> Repair group 26; Removing and installing parts of exhaust system

• Connecting piece for cold air intake
• ◆ Additionally secured on body with retaining clip
• Seal
• ◆ Renew
• 20 Nm
• Vacuum hose

• Supply hose
• ◆ Black with white marks
• ◆ Secure with spring-type clips
• ◆ Check securely seated
• ◆ From fuel filter:

=> Repair Group 20; Removing and installing parts of fuel supply system; Removing and installing fuel tank with attachments and fuel filter

• Return hose
• ◆ Blue or with blue marking
• ◆ Secure with spring-type clips
• ◆ Check securely seated
• ◆ To the fuel delivery unit in fuel tank

=> Repair Group 20; Removing and installing parts of fuel supply system; Removing and installing fuel tank with attachments and fuel filter

• Connector
• ◆ Black, 2-pin
• ◆ For injector (N30...N33)
• Connector
• ◆ Black, 2-pin
• ◆ For knock sensor 1 (G61)
• ◆ Connector contacts are gold-plated
• ◆ Fitting location => Page 24-1 , engine compartment overview
• Connector
• ◆ Black, 4 pin
• ◆ For intake manifold pressure sender and sender for intake air temperature in intake manifold
• ◆ Connector contacts are gold-plated
• ◆ Fitting location => Page 24-1 , engine compartment overview

• 5 Nm
• Crankcase breather hose
• ◆ From oil separator:

=> Repair group 17; Removing and installing parts of lubrication system