Removal and installation of coolant thermostat

Type

Nm

Screws for housing cover coolant thermostat

9-11

116

6-10

Drain plug for radiator

123, 126

1.5-2¹)

M This torque can be obtained by means of a washer or a coin.

Tester for cooling system

001 589 48 21 00

Radiator cap with hose for leak test

605 589 00 25 00

7 mm socket on flexible shaft for hose clamps

123 589 12 09 00

1    Drain coolant (20-010).

2   Disconnect hose on coolant thermostat housing cover (arrow).

3   Unscrew coolant thermostat housing cover.

4 Remove coolant thermostat with seal out of cover.

5 Check seal for damage and replace, if required.

20.8-110/1 F2

Note: Replace damaged seal.

6 Place seal on coolant thermostat.

7    Install coolant thermostat with seal in such a manner that arrow on thermostat points upwards.

8   Screw on coolant thermostat housing cover, tighten to 9—11 Nm and connect hose.

9   Add coolant (20-010).

10   Pressure-test cooling system with tester (approx. 1 bar gage pressure).

20.8-110/2 F2