Drain/fill high-voltage battery cooling system coolant

AR20.00-P-0020MRD

Drain/fill high-voltage battery cooling system coolant

06.03.2020

Engine

274.9 in model 213.050/053/054/153/155/253

1

Cap

2

Coolant expansion reservoir

3

Tester cap

4

Pressure reducing valve

5

Coolant hose

7

Clip

8

Coolant line

 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 when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

Topical note

General information on vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system as well as personal protective equipment

AH00.00-Z-0300-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Topical note

Notes on coolant

AH20.00-N-2080-01A

Drain off

1

Unplug charging cable.

For an attached charging cable.

2

Unscrew cap (1) from coolant expansion reservoir (2).

3

Remove rear section of left front fender liner.

AR88.10-P-1300LWE

4

Clamp off coolant hose (5) as closely to the clamp (7) as possible.

 Clamp

*000589403700

5

Release clamp (7).

 Hose clamp pliers

*003589033700

6

Disconnect coolant hose (5) from coolant line(8) and catch escaping coolant in a suitable container.

7

Attach suitable hose to coolant line (8) and lead into a suitable container.

8

Screw tester cap (3) onto coolant expansion reservoir (2).

 Test cap

*210589009100

9

Put pressure reducing valve (4) on tester cap (3).

10

Adjust pressure reducing valve (4) to discharge pressure and drain off coolant.

Discharge pressure for coolant for high-voltage battery cooling system at pressure reducing valve

*BE20.00-P-1001-03A

11

Close pressure reducing valve (4) when the high-voltage battery cooling system is completely empty.

Pour in

12

Disconnect pressure reducing valve (4) from tester cap (3).

13

Remove additional hose from coolant line (8).

14

Attach coolant hose (5) to coolant line(8).

15

Fasten clamp (7).

 Hose clamp pliers

*003589033700

16

Remove clamping device from coolant hose (5).

 Clamp

*000589403700

17

Pour in coolant and bleed high-voltage battery cooling system.

AR20.00-P-1142-04A

 High-voltage battery cooling system

*BF20.00-P-1002-02CA

 Test cap

*210589009100

 Cooler vacuum filling device

*285589002100

 NTKL Adaption

*285589012100

 Electric vacuum pump

*285589022100

18

Check high-voltage battery cooling system for leaks.

AR20.00-P-1013MRD

19

Install rear section of left front fender liner.

AR88.10-P-1300LWE

High-voltage battery cooling system

Number

Designation

Model 213.016/050/053/054/153/155/216/253

BE20.00-P-1001-03A

Discharge pressure for coolant for high-voltage battery cooling system at pressure reducing valve

bar

<0,5

 Cooling system

Number

Designation

Engine 274 in model 213.050/053/054/153/155/253

BF20.00-P-1002-02CA

High-voltage battery cooling system

Workshop replacement amount

Low-temperature circuit

l

6,5

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