Volkswagen Workshop Service and Repair Manuals

Note:

Connecting the coolant hoses to thermostat housing

=>Page 19-5 , parts of cooling system engine side.

• Thermostat housing
• 10 Nm
• Coolant thermostat
• ◆ Checking: heat-up thermostat in water
• ◆ Opening commences approx. 80 °C
• ◆ Ends approx. 105 °C
• ◆ Opening lift min. 7 mm
• Connection

• 10 Nm
• O-ring
• ◆ Renew
• Connection
• Plug
• ◆ On vehicles without air conditioner
• ◆ Thermo switch for air conditioner cut-off (F163) and radiator fan thermo switch, stage 3 (F165) on vehicles with air conditioner
  -brown
  -4-pin

=> Heating, air conditioning; Repair group 87

• Radiator fan run-on thermo switch (F87) with coolant temperature gauge sender (G2)
• ◆ Yellow, 4-pin
• ◆ Checking =>Page19-24 , checking pump for continued coolant circulation and radiator fan run-on
• ◆ Switching temperatures:
  on: 101...107°C
  off: 94...100 °C
• Coolant temperature sender (G62)
• ◆ Blue, 2-pin
• ◆ For Motronic

=> Repair Group 01; Self-diagnosis; Interrogating fault memory

• Retaining clip
• ◆ Check seated securely