ar2010p2460rt

Remove/install coolant thermostat

Type ar · topic 20.10 · version 0101 · 2007-08-15

Applies to: ENGINE 113.971 in MODEL 251.075 /175

Where it sits

Function group 1 Engine › 20 Engine cooling system › 20.10 Coolant pump, coolant thermostat — Series 251 (models 075, 175)

EinPAS 15 Engine › 15.25 Engine cooling system › 15.25.30 Pump/thermostat/preheater — Series 251 (models 075, 175)

Also applies to engines/gearboxes: 113 971

AR20.10-P-2460RT

Remove/install coolant thermostat

26.7.07

ENGINE 113.971 in MODEL 251.075 /175

Remove/install coolant thermostat

P20.10-2167-05

1 Coolant thermostat housing

2 Sealing ring

3 Bolts

4 Hose clamp

5 Coolant hose

Remove/install

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

1

Drain coolant at radiator

AR20.00-P-1142GZ

2

Remove engine trim panel

AR01.10-P-2405RT

3

Dismount coolant hose (5)

Inspect condition of coolant hose (5) and hose clamp (4); replace if necessary.

4

Unscrew bolts (3) and remove coolant thermostat housing (1) with coolant thermostat

The coolant thermostat must not be removed from the housing. Otherwise it will be destroyed. Reinstallation is not possible. The housing is supplied together with the coolant thermostat for repair purposes.

Installation: Install new sealing ring (2).

*BA20.10-P-1003-01C

External Torx set

*001589760900

5

Install in the reverse order

6

Inspect cooling system for leaks

AR20.00-P-1010GZ

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

7

Conduct engine test run and check the engine for leaks

In the event of oil loss determine and eliminate cause, otherwise malfunctions, transmission damage, and serious environmental pollution may occur.

Coolant pump, coolant thermostat

Number

Designation

Engine
113.964/
971

BA20.10-P-1003-01C

Bolt, coolant thermostat housing

M6

Nm

10

Remove/install coolant thermostat

001 589 76 09 00

External Torx set

Referenced documents