Remove/install high-voltage power distributor on underbody

AR47.70-D-0004TE

Remove/install high-voltage power distributor on underbody

13.01.2020

Engine

780.703 in model 910

Shown on model 910 with code E4T (High-voltage battery (47 kWh))

1

High-voltage power distributor

5

Bracket

7

High-voltage plug

2

Screw

5.1

Bolts

8

Bracket

3

Equipotential bonding line

6

High-voltage lines

9

Electrical connectors

4

High-voltage plug

Shown on model 910 with code E4T (High-voltage battery (47 kWh))

10

High-voltage plug

17

Bracket

16

Electrical connector

18

Bolts

Shown on model 910 with code E4T (High-voltage battery (47 kWh))

19

High-voltage battery 3

23

High-voltage battery 2

27

High-voltage battery 1

20

High-voltage plug

24

High-voltage plug

28

High-voltage plug

21

High-voltage lines

25

High-voltage lines

29

High-voltage lines

22

Bracket

26

Bracket

 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 battery

AH54.10-P-0001-01A

 

Remove/install

1

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

AR47.70-D-1000TE

2

Remove protective plate.

AR61.40-D-1005TE

3

Remove left underfloor paneling at high-voltage battery carrier.

AR61.30-D-1002TE

4

Remove bolts (5.1) of bracket (5) at high-voltage power distributor (1).

 Bolt, holder to high-voltage power distributor/holder

*BA47.70-N-1006-03TE

5

Release high-voltage plugs (7).

6

Remove high voltage lines (6) and bracket (5) from high-voltage power distributor (1).

 WIS Service Media
wsm://04_ 201800_13
Shown on model 447

7

Cover open electrical connectors at high-voltage plugs (7) and at high-voltage power distributor (1) with protective covers.

 Set of protective caps

*001589029100

8

Remove electrical connectors (9) from bracket (8).

 Clip remover

*452589016300

9

Remove equipotential bonding line (3) from bracket (8).

 Clip remover

*452589016300

10

Remove equipotential bonding line (3) from high-voltage power distributor (1).

 Unscrew screw/bolt (2) to do this.

 Screw, potential equalization ground line to high-voltage power distributor on underbody

*BA47.70-N-1002-02TE

11

Disconnect high-voltage plug (4).

Engine 780.703 in model 910
with code E4T (High-voltage battery (47 kWh))

12

Cover open electrical connectors at high-voltage plug (4) and at high-voltage power distributor (1) with protective covers.

Engine 780.703 in model 910
with code E4T (High-voltage battery (47 kWh))

 Set of protective caps

*001589029100

13

Disconnect high-voltage plug (10).

 WIS Service Media
wsm://04_ 201800_30

14

Cover open electrical connectors at high-voltage plug (10) and at high-voltage power distributor (1) with protective covers.

 Set of protective caps

*001589009100

15

Remove bracket (17) from high-voltage power distributor (1).

 To do this, unscrew screws.

 Bolt, holder to high-voltage power distributor/holder

*BA47.70-N-1006-03TE

16

Remove screws (18).

 Screw, high-voltage power distributor on underbody to high-voltage battery module

*BA47.70-N-1003-03TE

17

Pull high-voltage power distributor (1) forwards until electrical connector (16) can be accessed.

18

Separate electrical connection (16).

19

Remove high-voltage plug (20) from high-voltage battery 3 (19).

AR47.70-S-0005-01F

 Safety screw, locking element to high-voltage battery high-voltage plug

*BA47.70-N-1001-01TE

20

Cover open electrical connectors at high-voltage plug (20) and at high-voltage battery 3 (19) with protective covers.

 Set of protective caps

*001589029100

21

Remove high voltage lines (21, 25) from high-voltage battery 3 (19) and high-voltage battery 2 (23).

 For this purpose, remove brackets (22, 26).

22

Remove high-voltage plug (24) from high-voltage battery 2 (23).

AR47.70-S-0005-01F

 Safety screw, locking element to high-voltage battery high-voltage plug

*BA47.70-N-1001-01TE

23

Cover open electrical connectors at high-voltage plug (24) and at high-voltage battery 2 (23) with protective covers.

 Set of protective caps

*001589029100

24

Remove high-voltage plug (28) from high-voltage battery 1 (27).

AR47.70-S-0005-01F

 Safety screw, locking element to high-voltage battery high-voltage plug

*BA47.70-N-1001-01TE

25

Cover open electrical connectors at high-voltage plug (28) and at high-voltage battery 1 (27) with protective covers.

 Set of protective caps

*001589029100

26

Remove high-voltage power distributor (1) with high voltage lines (21, 25, 29) downwards.

 Aid of helper required.

27

Install in the reverse order.

 High-voltage battery

Number

Designation

Engine 780.703 in model 910

BA47.70-N-1001-01TE

Safety screw, locking element to high-voltage battery high-voltage plug

Nm

4

 High-voltage on-board electrical system potential equalization ground lines

Number

Designation

Engine 780.703 in model 910

BA47.70-N-1002-02TE

Screw, potential equalization ground line to high-voltage power distributor on underbody

Nm

16

 High-voltage power distributor

Number

Designation

Engine 780.703 in model 910

BA47.70-N-1003-03TE

Screw, high-voltage power distributor on underbody to high-voltage battery module

Nm

20

 High-voltage power distributor

Number

Designation

Engine 780.703 in model 910

BA47.70-N-1006-03TE

Bolt, holder to high-voltage power distributor/holder

Nm

8