Radiator Hose: Service and Repair

LEGEND
1 O-ring
2 Bolt
3 Hose
4 Retaining Clip
5 Engine Coolant Temperature Sensor (G62) Or Engine Temperature Sensor (G27) With Engine Coolant Temperature Sensor (G2)
6 Hose
7 Third Speed Coolant Fan Control (F165) Thermal Switch Only As An Option
8 Hose
9 Hose
10 Bracket
11 Coolant Pipe
12 Oil Cooler
13 Hose
14 Water Pump Mounting Bolt And Studs
15 Bracket
16 Nut
17 V-belt Ribbed Drive Belt
18 Engine Coolant Pump (Water Pump)
19 Hose

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

COMPONENT NOTES
O-ring (1)
- Always replace.

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

Hose (3)
- From Expansion Tank.

Engine Coolant temperature sensor (G62) or Engine Temperature sensor (G27) (5)
- With Engine Coolant Temperature Sensor (G2).

Hose (6)
- To Charge Air Cooler.

Third Speed Coolant Fan Control (F165) (7)
- Thermal switch only as an option.
- Switching temperatures:

On: 110-115°C (230-239°F).
Off: 105-110°C (221-230°F).

Hose (8)
- From Charge Air Cooler.

Hose (9)
- To Expansion Tank.

Oil Cooler (12)
- Refer to Engine Lubrication.

Hose (13)
- To Bottom Of Radiator.

Water Pump Mounting Bolt and Studs (14)
- Tighten to: 20 Nm (15 ft. lbs.) + 1/4 turn (90°).
- Always replace.

Bracket For Ribbed Drive Belts Without Tensioner (15)
- For ribbed Drive Belts without tensioner.

Nut (16)
- Tighten to: 30 Nm (22 ft. lbs.).

Hose (19)
- To Top Of Radiator.