Drain/pour in coolant

AR20.00-P-1142SXI

Drain/pour in coolant

12.11.2018

Engine

642 in model 221

Modification notes

20.11.2013

Work procedure altered and special tools for electrical vacuum pump and NTKL adaptation, added.

Operation steps 14 to 26

AR20.00-P-1142-04A

1

Drain screw for radiator

2

Fitting

3

Coolant cap

 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

 Danger

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

Topical note

Notes on coolant

AH20.00-N-2080-01A

Drain off

1

Open hood

2

Open coolant cap (3) on coolant expansion reservoir

 Turn the coolant cap (3) counterclockwise one half-turn, relieve the overpressure, then unscrew the coolant cap (3).

3

Remove front soundproofing bottom section

4

Slide the drain hose on to the left fitting (2) at the radiator

5

Open radiator drain screw (1) and drain off coolant

 Collect coolant in a suitable container.

6

Tighten radiator drain screw (1)

7

Detach drain hose from fitting (2)

Pour in

8

Pour in coolant and bleed cooling system

AR20.00-P-1142-04A

Notes on coolant level

AH20.00-P-1142-01CW



Anticorrosion/antifreeze agents (Sheet 325.0)

BB00.40-P-0325-00A



Coolant specifications

BB00.40-P-0310-01A

 Re-use clean coolant.

 Cooling system

*BF20.00-P-1001-02W

 NTKL Adaption

*285589012100

 Electric vacuum pump

*285589022100

 Test cap

*210589009100

 Cooler vacuum filling device

*285589002100



Check

9

Check cooling system for leaktightness

AR20.00-P-1010SX

10

Close coolant cap (3) on coolant expansion reservoir

11

Install front noise encapsulation bottom section

12

Close engine hood

 Cooling system

Number

Designation

Engine 642 in model 203, 209, 211, 219, 221

BF20.00-P-1001-02W

Cooling system

Workshop replacement amount

Main circuit

l

7,5

Low-temperature circuit

l

-

Antifreeze/water

Down to -37°C

%

50/50

-38°C and below

%

55/45

Sheet

BB00.40-P-0310-01A

Sheet

BB00.40-P-0325-00A

Sheet

BB00.40-P-0326-00A