Drain/fill low-temperature circuit coolant

AR20.00-P-1144OLG

Drain/fill low-temperature circuit coolant

04.11.2019

Engine

654, 656 in model 253

1

Cap

7

Coolant hose

8

Coolant hose

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

 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

Notes on coolant level

AH20.00-P-1142-01CW



Remove

1

Open hood and unscrew cap (1) of expansion reservoir.

2

Remove lower engine compartment paneling.

AR61.20-P-1105LW

Drain off

3

Remove coolant hose (7) from low-temperature circuit cooler and catch escaping coolant in a suitable container.

AR20.20-P-7441-01RQ

4

Install coolant hose (7) on low-temperature circuit cooler.

AR20.20-P-7441-01RQ

5

Remove coolant hose (8) from oil cooler and collect escaping coolant in a suitable container.

AR20.20-P-7441-01RQ

6

Attach coolant hose (8) to oil cooler.

AR20.20-P-7441-01RQ

Pour in

7

Connect vehicle diagnosis system and switch on ignition.



AD00.00-P-2000-04B

8

Start fill mode of coolant circuit.

9

Pour in coolant and bleed coolant circuit.

AR20.00-P-1142-04OLC


Do not fill coolant circuit without activating fill mode.
Proper distribution of the coolant is otherwise not ensured.

 Engine 656 in model 253Cooling system

*BF20.00-P-1001-06E

 Engine 654 in model 253Cooling system

*BF20.00-P-1001-06B

Test pressure for pressure-testing the engine cooling system

*BE20.30-P-1005-01A

 Cooler vacuum filling device

*285589002100

 Electric vacuum pump

*285589022100

 Pressure pump

*124589242100

 Test cap

*210589009100

 NTKL Adaption

*285589012100

10

End fill mode of coolant circuit.

11

Start bleed routine of coolant circuit.

 This involves actuating the coolant pumps to remove residual air from the coolant circuit.

If the bleeding routine was not completed successfully:



Repeat bleeding routine of engine cooling system.

12

Switch off ignition and disconnect diagnostic system.



AD00.00-P-2000-04B

13

Check coolant level, correct if necessary.

 Engine 656 in model 253Cooling system

*BF20.00-P-1001-06E

 Engine 654 in model 253Cooling system

*BF20.00-P-1001-06B



Install

14

Install lower engine compartment lining.

AR61.20-P-1105LW

15

Screw cap (1) onto expansion reservoir.

Radiator or expansion reservoir cap

Number

Designation

1-stage cover latch

Engine 100, 102, 103, 104, 110, 111, 112, 113, 114, 115, 116, 117, 119, 120, 121, 123, 127, 129, 130, 133, 137, 139, 152, 155, 156, 157, 159, 166, 180, 256, 260, 264, 266, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 282, 285
2-stage latch cover
Engine 601, 602, 603, 604, 605, 606, 607, 608, 611, 612, 613, 615, 616, 617, 621, 626, 628, 629, 640, 642, 646, 648, 651, 654, 656, 668
2-stage latch cover

BE20.30-P-1005-01A

Test pressure for pressure-testing the engine cooling system

Overpressure

bar

1,4

1,4

 Cooling system

Number

Designation

Engine 654 in model 253

BF20.00-P-1001-06B

Cooling system

Workshop replacement amount

l

12,5

Antifreeze/water

Down to -37 °C

%

50/50

-38 °C and below

%

55/45

Specifications for Operating Fluids, sheet

BB00.40-P-0310-01A

Specifications for Operating Fluids, sheet

BB00.40-P-0325-06A

Specifications for Operating Fluids, sheet

BB00.40-P-0326-06A

 Cooling system

Number

Designation

Engine 656 in model 253

BF20.00-P-1001-06E

Cooling system

Workshop replacement amount

Main circuit

Litre

13

Low-temperature circuit

Litre

-

Antifreeze/water

to -37 °C

%

50/50

as from -38 °C

%

55/45

Specifications for Operating Fluids, sheet

BB00.40-P-0310-01A

Specifications for Operating Fluids, sheet

BB00.40-P-0325-06A

Specifications for Operating Fluids, sheet

BB00.40-P-0326-06A