Drain/pour in coolant

AR20.00-P-1142MNL

Drain/pour in coolant

09.11.2018

Engine

176, 177 in model 217, 222

1

Engine cooling system cooler

2

Coolant hose

3

Drain fitting

4

Drain valve

 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

Slowly open cap of engine cooling system coolant expansion reservoir and remove

2

Remove front and center lower engine compartment paneling

AR61.20-P-1105LF

Drain off

3

Slide suitable drain hose onto drain fitting (3)

4

Open drain valve (4) on engine cooling system cooler (1) and drain off coolant into a suitable container


Only open the drain valve (4) until coolant flows out.
Otherwise damage will occur on drain valve (4) and on engine cooling system cooler (1).

5

Close drain valve (4)

6

Remove the coolant hose (2) on engine oil cooler in the right wheel arch and drain off coolant into a suitable container

AR20.20-P-7441-01RQ

7

Reattach the coolant hose (2) to the engine oil cooler

AR20.20-P-7441-01RQ

Pour in

8

Pour in clean coolant and bleed the engine cooling system

AR20.00-P-1142-04A

 Engine 177 in model 217, 222Cooling system

*BF20.00-P-1001-02LA

 Engine 176 in model 217, 222Cooling system

*BF20.00-P-1001-06A

 Test cap

*210589009100

 Cooler vacuum filling device

*285589002100

 NTKL Adaption

*285589012100

 Electric vacuum pump

*285589022100



Check

9

Check engine cooling system for leaktightness

AR20.00-P-1010LF



Install

10

Install bottom front engine compartment lining

AR61.20-P-1105LF

11

Attach cap to engine cooling system coolant expansion reservoir

 Cooling system

Number

Designation

Engine 177 in model 217

Engine 177 in model 222

BF20.00-P-1001-02LA

Cooling system

Workshop replacement amount

Main circuit

Liter

13,6

13,5

Low-temperature circuit

Liter

6,2

6,2

Antifreeze/water

Down to -37°C

%

50/50

50/50

-38°C and below

%

55/45

55/45

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

 Cooling system

Number

Designation

Engine 176 in model 217

Engine 176 in model 222

BF20.00-P-1001-06A

Cooling system

Workshop replacement amount

Main circuit

Liter

14

14

Low-temperature circuit

Liter

4

4

Antifreeze/water

Down to -37°C

%

50/50

50/50

-38°C and below

%

55/45

55/45

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