ar2010p1271fb

Remove/install coolant pump

Type ar · topic 20.10 · version 0103 · 2010-01-20

Applies to: ENGINES 122.9 in MODEL 454.0

Where it sits

Function group 1 Engine › 20 Engine cooling system › 20.10 Coolant pump, coolant thermostat — Series 454 (models 0**)

EinPAS 15 Engine › 15.25 Engine cooling system › 15.25.30 Pump/thermostat/preheater — Series 454 (models 0**)

Also applies to engines/gearboxes: 122 9**

AR20.10-P-1271FB

Remove/install coolant pump

12.1.10

ENGINES 122.9 in MODEL 454.0

Remove/install coolant pump

P20.10-2185-06

1 Screw

2 Screw

3 Bracket

4 Coolant pump

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

Notes on coolant

AH20.00-N-2080-01A

1

Remove tensioning pulley with relay lever

AR05.10-P-7700FB

2

Remove timing belt tensioner

AR05.10-P-7900FB

3

Lower vehicle

4

Unscrew bolt (1)

Installation: Do not tighten bolt (1) completely.

5

Remove screw/bolt (2) and remove bracket (3)

*BA13.25-P-1004-01O

6

Drain coolant

AR20.00-P-1142FF

7

Remove bolts for coolant pump (4)

The coolant pump (4) is still attached by five bolts to the crankcase.

Installation: Pay attention to the various bolt lengths, otherwise the crankcase can be damaged.

*BA20.10-P-1005-01T

8

Remove coolant pump (4)

Installation: Clean the sealing surfaces on the crankcase and on the coolant pump (4).

9.1

Remove gasket from coolant pump (4) and check

When reusing the removed coolant pump (4).

Clean sealing surfaces of the coolant pump (4).

Installation: The gasket of the coolant pump (4) is not available separately. If the gasket is damaged, it must be replaced with the coolant pump (4).

10

Install in the reverse order

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

11

Conduct engine test run and check cooling system in the area of the coolant pump (4) for leaks

Belt tensioning device

Number

Designation

Engine
122.950

BA13.25-P-1004-01O

Bolt for alternator tensioning device on crankcase

Nm

24

Coolant pump, coolant thermostat

Number

Designation

Engine
122.9

BA20.10-P-1005-01T

Bolt, coolant pump to crankcase

M820

Nm

14

M830

Nm

14

M850

Nm

24

Referenced documents