Remove/install high-voltage battery switchover valve

AR08.50-P-0027EQ

Remove/install high-voltage battery switchover valve

03.12.2019

Model

293

1

Electrical connector

5

Nuts

2

Coolant hose

6

Bracket

3

Coolant hose

Y140

High-voltage battery cooling system switchover valve

4

Coolant hose

 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

 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

General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system

AH00.00-Z-0300-01A

Topical note

Notes on coolant

AH20.00-N-2080-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

 

Remove/install

1

Remove voltage of high-voltage on-board electrical system.

AR47.70-P-1000EQ

2

Remove engine cover.

3

Disconnect electrical connector (1).

4

Clamp off coolant hoses (2, 3, 4) at a suitable point.

 Clamp

*000589543700

5

Place suitable dry cloths on the area beneath the coolant hoses (2, 3, 4).


No coolant must enter the surrounding electrical connectors.
Otherwise they may be damaged.

6

Unlock and remove the coolant hoses (2, 3, 4), and seal the openings with a suitable stop plug.

AR08.50-P-0018-01EQ

 Catch escaping coolant with a suitable container.

 Record plug

*129589009100

7

Remove nuts (5) and remove the switchover valve of the high-voltage battery cooling (Y140) from the bracket (6).

 Nut, switchover valve to holder

*BA08.50-P-1002-03A

8

Install in the reverse order.



Check

9

Correct coolant level.



AP08.50-P-2053A

10

Perform venting routine with diagnostic device.



AD00.00-P-2000-06FR

11

Check/correct coolant level.



AP08.50-P-2053A

 Heater of high-voltage battery cooling system

Number

Designation

Model 293

BA08.50-P-1002-03A

Nut, switchover valve to holder

Nm

6