Remove/install expansion reservoir

AR20.30-D-4950SD

Remove/install expansion reservoir

29.05.2020

Engine

271.951, 272.979, 642.896/898/992/993, 646.984/985/986/989, 651.955/956/957 in model 906

Engine

651 in model 900

Modification notes

28.05.2020

Work procedure revised

The whole document

Shown with engine 646.985

1

Coolant expansion reservoir

2

Coolant hose

3

Coolant hose

4

Coolant hose

5

Screw

6

Electrical connector

S41

Coolant level indicator switch

Shown with engine 642.898

1

Coolant expansion reservoir

7

Bolts

8

Bracket

 Warning

Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from 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

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Topical note

Notes on coolant

AH20.00-N-2080-01A

 

Remove/install

1

Remove cap from coolant expansion reservoir (1).

 Turn cap at coolant expansion reservoir (1) by half a turn counterclockwise, release overpressure, then remove cap from coolant expansion reservoir (1).

2

Suction off coolant from coolant expansion reservoir (1).

Notes on coolant level

AH20.00-P-1142-01CW



Service Information: Coolant

SI20.00-S-0001B

 Engine 642.896/898/992/993 in model 906
Engine 646.984/985/986/989 in model 906
Engine 651.955 in model 900
Engine 651.955/956/957 in model 906Coolant

*BF20.00-N-1001-01A

 Engine 271.951 in model 906
Engine 272.979 in model 906Coolant

*BF20.00-N-1001-01K

 Hand pump

*210589007100

3

Remove bracket (8) with AdBlue® filler neck from coolant expansion reservoir (1).

Engine 642.898

 To do this, remove bolts (7).

 Place bracket (8) outside the working area. It must be possible to remove coolant expansion reservoir (1) from guide.

4

Remove coolant hoses (2, 3) at coolant expansion reservoir (1).

5

Remove coolant hose (4) at coolant expansion reservoir (1).

Engine 271, 642, 646, 651

6

Remove screw (5).

Engine 271, 272, 642.896/992/993, 646, 651

7

Lift coolant expansion reservoir (1) and disconnect electrical connector (6) at coolant level indicator switch (S41).

8

Remove coolant expansion reservoir (1).

9

Turn coolant level indicator switch (S41) in direction of arrow and remove.

When replacing coolant expansion reservoir (1).

10

Install in the reverse order.



Check

11

Check engine cooling system for leak tightness.

AR20.00-S-1010S

 Engine cooling

Number

Designation

Engine 642.896/898/992/993

Engine 646.984/985/986/989/990

BF20.00-N-1001-01A

Coolant

Total filling capacity

Liter

10

9,5

Corrosion/antifreeze down to -37 °C

Liter

5

4,8

Corrosion/antifreeze down to -45 °C

Liter

5,5

5,2

Sheet

BB00.40-P-0310-01A

BB00.40-P-0310-01A

Sheet

BB00.40-P-0325-00A

BB00.40-P-0325-00A

Sheet

BB00.40-P-0325-06A

BB00.40-P-0325-06A

Sheet

BB00.40-P-0326-06A

BB00.40-P-0326-06A

 Engine cooling

Number

Designation

Engine 651.955 in model 900
Engine 651.955/956/957 in model 906

BF20.00-N-1001-01A

Coolant

Total filling capacity

Liter

10

Corrosion/antifreeze down to -37 °C

Liter

4,8

Corrosion/antifreeze down to -45 °C

Liter

5,2

Sheet

BB00.40-P-0310-01A

Sheet

BB00.40-P-0325-00A

Sheet

BB00.40-P-0325-06A

Sheet

BB00.40-P-0326-06A

 Engine cooling

Number

Designation

Engine 271.951 in model 906

Engine 272.979 in model 906

BF20.00-N-1001-01K

Coolant

Total filling capacity

Liter

7

7

Corrosion/antifreeze down to -37 °C

Liter

3,5

3,5

Corrosion/antifreeze down to -45 °C

Liter

3,9

3,9

Sheet

BB00.40-P-0310-01A

BB00.40-P-0310-01A

Sheet

BB00.40-P-0325-00A

BB00.40-P-0325-00A

Sheet

BB00.40-P-0325-06A

BB00.40-P-0325-06A

Sheet

BB00.40-P-0326-06A

BB00.40-P-0326-06A