Drain/pour in coolant

AR20.00-P-1142MSB

Drain/pour in coolant

31.10.2018

Engine

264 in model 257

1

Coolant hose

3

Coolant hose

2

Radiator

4

Oil cooler

 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 coolant

AH20.00-N-2080-01A

Notes on coolant level

AH20.00-P-1142-01CW

Drain off

1

Remove cap from engine cooling system expansion reservoir.

2

Remove lower engine compartment paneling.

AR61.20-P-1105FR

3

Remove coolant hose (1) from cooler (2) and collect escaping coolant in a suitable container.

AR20.20-P-7441-01RQ

4

Remove coolant hose (3) from oil cooler (4) and collect escaping coolant in a suitable container.

AR20.20-P-7441-01RQ

Pour in

5

Attach coolant hose (3) to the oil cooler (4).

AR20.20-P-7441-01RQ

6

Attach coolant hose (1) to cooler (2).

AR20.20-P-7441-01RQ

7

Pour in coolant and bleed engine cooling system.

AR20.00-P-1142-04OLC

Test pressure for pressure-testing the engine cooling system

*BE20.30-P-1005-01A

 Cooling system

*BF20.00-P-1001-06D

 Test cap

*210589009100

 Cooler vacuum filling device

*285589002100

 NTKL Adaption

*285589012100

 Electric vacuum pump

*285589022100

 Pressure pump

*124589242100

8

Check engine cooling system for leak tightness.

AR20.00-P-1011OLC

9

Install lower engine compartment lining.

AR61.20-P-1105FR

Radiator or expansion reservoir cap

Number

Designation

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

 Cooling system

Number

Designation

Engine 264 in model 257.348

Engine 264 in model 257 (except 257.348)

BF20.00-P-1001-06D

Cooling system

Workshop replacement amount

Main circuit

Liter

14,0

9,0

Low-temperature circuit

Liter

-

4,0

Antifreeze/water

Down to -37°C

%

50/50

50/50

-38°C and below

%

50/45

50/45

Specifications for Operating Fluids, sheet

BB00.40-P-0310-01A

BB00.40-P-0310-01A

Specifications for Operating Fluids, sheet

BB00.40-P-0325-06A

BB00.40-P-0325-06A

Specifications for Operating Fluids, sheet

BB00.40-P-0326-06A

BB00.40-P-0326-06A