Disassemble/Assemble Multifunction Steering Wheel - AR82.90-P-0010RG
Model 190
as of model year 2019
| 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). | *BA46.10-P-1006-02A | |
| 4 | Unscrew screws (5) and unclip cover (4) from multifunction steering wheel (1). | Fig 1 | |
| 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). | Fig 1 | |
| 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 | 7 |