Disassemble/assemble multifunction steering wheel

AR82.90-P-0010RG

Disassemble/assemble multifunction steering wheel

28.06.2019

Model

190

as of model year 2019

1

Multifunction steering wheel

5

Screw

S4/2

Horns contact plate

2

Plug contact

6

Electrical connector

S163/1

Instrument cluster multifunction steering wheel button group

3

Bolts

7

Electrical connector

S163/2

Head unit multifunction steering wheel button group

4

Cover

N135

Steering wheel electronics

4

Cover

9

Bolts

S163/1

Instrument cluster multifunction steering wheel button group

S163/2

Head unit multifunction steering wheel button group

1

Multifunction steering wheel

14

Cover

S111/1

Steering wheel upshift button

10

Screw

18

Bolts

S163/3

Lower multifunction steering wheel button group 1

11

Screw

S110/1

Steering wheel downshift button

S163/4

Lower multifunction steering wheel button group 2

12

Cover

1

Multifunction steering wheel

15

Lock

A74/2

Lower multifunction steering wheel button group electric controller unit

13

Bolts

16

Plug contact

S163/3

Lower multifunction steering wheel button group 1

14

Cover

17

Electrical line

S163/4

Lower multifunction steering wheel button group 2

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Notes on safety-relevant components

AH00.00-Z-0019-01A

 

Disassemble/assemble

1.1

Remove multifunction steering wheel (1).

When replacing multifunction steering wheel (1).

AR46.10-P-0100RG

1.2

Remove airbag from multifunction steering wheel (1).

When replacing detachable parts on multifunction steering wheel (1).

AR91.60-P-0660EL

2

Disconnect plug contact (2) from horn contact plate (S4/2).

3

Unscrew screws (3) and remove horn contact plate (S4/2) from multifunction steering wheel (1).

 Screw, mounting plate/contact plate to steering wheel

*BA46.10-P-1006-02A

4

Unscrew screws (5) and unclip cover (4) from multifunction steering wheel (1).

 Long wedge

*115589035900

5

Disconnect electrical connectors (6) from steering wheel electronics (N135) and remove cover (4) from multifunction steering wheel (1).

6

Unscrew screws (9) and remove instrument cluster multifunction steering wheel button group (S163/1) and head unit multifunction steering wheel button group (S163/2) from cover (4).

When replacing cover (4), instrument cluster multifunction steering wheel button group (S163/1) or head unit multifunction steering wheel button group (S163/2).

7

Disconnect electrical connectors (7) from steering wheel electronics (N135).

8

Unscrew screws (10) and remove steering wheel downshift button (S110/1) and steering wheel upshift button (S111/1) from multifunction steering wheel (1).

9

Unscrew screws (11) and unclip cover (12) from multifunction steering wheel (1).

 Long wedge

*115589035900

10

Unscrew screws (13) and remove cover (14) from multifunction steering wheel (1).

11

Fold up locks (15) at side on lower multifunction steering wheel button group electric controller unit (A74/2) and remove electric lines (17) from lower multifunction steering wheel button group electric controller unit (A74/2).

12

Disconnect plug contact (16) from lower multifunction steering wheel button group electric controller unit (A74/2).

13

Unscrew screws (18) and remove lower multifunction steering wheel button group 1 (S163/3) and lower multifunction steering wheel button group 2 (S163/4) from multifunction steering wheel (1).

14

Remove steering wheel electronics (N135) from multifunction steering wheel (1).

15

Assemble in the reverse order.

16

Connect vehicle diagnosis system and perform commissioning.

Only when replacing lower multifunction steering wheel button group electric controller unit (A74/2).



AD00.00-P-2000-04B

17

Disconnect vehicle diagnosis system.

Only when replacing lower multifunction steering wheel button group electric controller unit (A74/2).

 Steering wheel

Number

Designation

Model 190

BA46.10-P-1006-02A

Screw, mounting plate/contact plate to steering wheel

Nm

-