Remove/install coolant thermostat housing

AR20.10-S-2710SD

Remove/install coolant thermostat housing

13.4.10

13.1.10

Methods and cross-reference altered

Operation step 2

 

Remove/install

 Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running

Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes.
Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

 Danger!

Risk of death caused by vehicle slipping or toppling off the lifting platform.

Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.

AS00.00-Z-0010-01A

 Danger!

Risk of injury to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning caused by swallowing coolant.

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

Wear protective gloves, protective clothing and safety glasses.

AS20.00-Z-0001-01A



Notes on coolant

AH20.00-N-2080-01A

1

Remove air filter housing

AR09.10-S-1150S

2

Drain coolant

AR20.00-S-1140S

3

Disconnect coolant hoses (1)

4

Remove retaining bracket (2)

 Remove bolt (3) .

5

Remove coolant thermostat housing (4)

 Remove bolts (5) and disconnect electrical connector at coolant temperature sensor (B11, B11/2).

 Installation: Replace sealing ring to prevent leaks.



*BA20.10-N-1002-01Q

6

Install in the reverse order



Checking

7

Inspect cooling system for leaks

AR20.00-S-1010S

Number

Designation

Engine 646
in model 636, 639

BA20.10-N-1002-01Q

Bolt, coolant thermostat housing to cylinder head

Nm

8