Radiator Cooling Fan Temperature Sensor / Switch: Service and Repair

LEGEND
1 Mounting
2 Bolt
3 Radiator
4 V-belt
5 Guide Ring
6 Coolant Fan
7 Coolant Hose, Upper To Connector Pipe
8 Coolant Hose, Lower To Coolant Pump
9 Auxiliary Fan
10 Fan Shroud
11 Connector
12 Cover
13 Expansion Tank
14 To Coolant Pipe Or Connector Flange
15 To ATF Cooler
16 To Cylinder Head
17 Cap
18 Coolant Fan Control
19 Rubber Bushing

NOTE: During removal and installation procedures, refer to the component location illustration above and component notes below.

COMPONENT NOTES
Bolt (2)
- Tighten to: 10 Nm (7 ft. lbs.).

Radiator (3)
- After replacing radiator, replace coolant.

V-belt (4)
- Only with optional equipment.

Guide Ring (5)
- Note installed position.
- Attached to fan shroud with clips.

Auxiliary Fan (9)
- Only installed on models with optional equipment.

Fan Shroud (10)
- Note installed position.

To Coolant Pipe Or Connector Flange (14)
- On models with manual transmission, connects to item No. 13 of coolant pipe diagram, refer to Radiator Hose.
- On models with automatic transmission, connects to item No. 9 of coolant pipe diagram, refer to Radiator Hose.

To ATF Cooler (15)
- On models with automatic transmission.

Cap (17)
- Pressure test with tester tool No. VAG 1274 and adapter VAG 1274/4.
- Pressure specifications: 1.3-1.5 bar (19-22 psi).

Coolant Fan Control Thermal Switch (18)
- Tighten to: 35 Nm (26 ft. lbs.).
- Switching temperatures:

- 1st stage:
ON: 92-97°C (197-206°F)
OFF: 84-91°C (183-195°F)

- 2nd stage:
ON: 99-105°C (210-221°F)
OFF: 91-98°C (195-208°F)