Drain/pour in coolant

AR20.00-P-1142MRO

Drain/pour in coolant

30.04.2020

Engine

264 in model 463

1

Drain screw

2

Drain fitting

3

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 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

Drain off

1

Slowly open cap, release overpressure and remove from coolant expansion reservoir.

2

Remove front lower engine compartment lining.

Engine 264 in model 463
as of model year 2020

AR61.20-P-1105XG

3

Slide drain hose onto the drain fitting (2) on the cooler (3).

4

Open drain screw (1), drain coolant and catch it in a suitable container.


Unscrew drain screw (1) only until the coolant flows out.
Permanent damage to the drain screw (1) will occur otherwise.

 Observe regulations for disposal of coolant.

Pour in

5

Tighten drain screw (1) and detach drain hose.

6

Pour in coolant and bleed engine cooling system.

AR20.00-P-1142-04OLC

 Use clean coolant again.

 Cooling system

*BF20.00-P-1001-06D

Test pressure for pressure-testing the engine cooling system

*BE20.30-P-1005-01A

 Pressure pump

*124589242100

 Electric vacuum pump

*285589022100

 NTKL Adaption

*285589012100

 Cooler vacuum filling device

*285589002100

 Test cap

*210589009100



Check

7

Check engine cooling system for leak tightness.

AR20.00-P-1011MRO

 Install front bottom engine compartment lining only after engine test run.

 Warning

Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust.

Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area.

AS49.00-Z-0001-01A

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

8

Perform an engine test run, check engine cooling system for proper operation.



Install

9

Install front lower engine compartment lining.

Engine 264 in model 463
as of model year 2020

AR61.20-P-1105XG

Radiator or expansion reservoir cap

Number

Designation

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 463

BF20.00-P-1001-06D

Cooling system

Workshop replacement amount

Main circuit

Liter

13,0

Low-temperature circuit

Liter

4,6

Antifreeze/water

Down to -37 °C

%

50/50

-38 °C and below

%

50/45

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