Removing and engine installing coolant thermostat

AR20.10-S-2460A

Removing and engine installing coolant thermostat

7.3.95

 

Removing, installing

1

Remove air cleaner housing

AR09.10-S-1150A

 Danger!

Risk of injury to skin and eyes from scalding from hot coolant which splashes out. Risk of poisoning from swallowing coolant.

Do not open the cooling system unless the coolant temperature is below 90 °C. Open cap slowly and allow the pressure to release. Do not pour coolant into containers for drinks.

Wear protective gloves, protective clothes, and eye protection.

AS20.00-Z-0001-01A

2

Drain coolant

AP20.00-D-2080A

3

Unclip cable strap (arrow) from the lifting eye (8)

4

Detach coolant hoses (2, 4) at the cap (3)


 Inspect condition of coolant hoses and hose clips, replace if necessary

*WH58.30-Z-1002-06A

5

Take off cap (3) with coolant thermostat (5)


 The coolant thermostat (5) must not be removed from the cap (3) otherwise it will be destroyed. It is not possible to then re-install it.
 Installation: replace seal (6)

*BA20.10-N-1004-01A

6

Install in the reverse order

7

Inspect cooling system for leaks

AR20.00-S-1010A

Number

Designation

Engine 111.948/
950/978/980

BA20.10-N-1004-01A

Cap of coolant thermostat

Nm

10

Number

Designation

WH58.30-Z-1002-06A

7 mm socket hexagon on flexible shaft for hose clamps with worm drive