Remove/install front seat sidebag unit

AR91.60-P-0695MCC

Remove/install front seat sidebag unit

03.04.2019

Model

451.3/4

with code I53 (Head/thorax airbag)

1

Backrest cover

2

Locking strip

3

Rail

2

Locking strip

4

Extraction hook

5

Side locking strip

6

Side rail

1

Backrest cover

8

Sidebag unit wiring harness

10

Electrical connector

3

Rail

9

Nut

11

Side airbag unit

7

White marking

 

Remove/install

 Caution

Risk of injury caused by backrest suddenly folding forward if release lever is accidentally operated during inspection and repair work

When working on the seat, be careful not to accidentally release the backrest mechanism, allowing the seat to fold forward. Keep body parts clear of the backrest travel area.

AS91.00-Z-0005-01V

 Warning

Risk of injury caused by performing testing or repair work on airbag or emergency tensioning retractor units.

Store airbag units with deployment side facing up; do not expose to temperatures greater than 100 °C. When working on these units, disconnect the power supply.

AS91.00-Z-0001-01A

Topical note

Notes on performing repair, body work and welding on vehicles with airbags and RTE units

AH91.00-P-0002-01M

Legal requirements on handling and storing airbags and emergency tensioning retractor units

AH91.00-P-0004-01A

1

Remove seat

AR91.10-P-1000MCC

2

Expose rear locking strip (2) on sides (arrows A)

3

Unhook locking strip (2) by turning on the rail (3)

 Installation: Insert locking strip (2) into rail (3) starting at right.
The position of the locking strip (2) relative to the rail (3) is marked.

4

Guide extraction hook (4) in marked area (arrow B) behind seat backrest cover (1) and hook into side locking strip (5)

 Assembly tool set

*450589079900

5

Expose lower part of side locking strip (5) by pulling extraction hook (4) in direction of arrow

 Assembly tool set

*450589079900

6

Unhook side locking strip (5) by turning on the side rail (6)

7

Guide lower part of seat backrest cover (1) forward between seat cushion and seat backrest


Ensure that the seat cover is not damaged by the rail (3):
As otherwise it will need to be replaced.

8

Fold seat backrest cover (1) in front area upward


Ensure that the seat backrest cover (1) is not damaged by tearing:
As otherwise it will need to be replaced.

9

Fold over backrest

10

Fold seat backrest cover (1) in rear area until sidebag unit (11) is accessible

11

Remove cable ties in area of white markings (7)

 Installation: Attach cable ties at white markings (7) on sidebag unit wiring harness (8) or seat heating wiring harness.
Observe installation position of cable ties.

12

Unscrew nuts (9) of sidebag unit (11)

 Installation:
Replace self-locking nuts (9).
Before tightening nuts (9), ensure that electrical connector (10) is positioned in the opening of the seat backrest frame:
As otherwise the sidebag unit (11) or electrical connector (10) can be damaged.

 Nut, sidebag to backrest

*BA91.60-P-1007-01C

13

Remove sidebag unit (11) until electrical connector (10) is accessible

14

Release fuse of electrical connector (10)

15

Disconnect electrical connector (10) and remove sidebag unit (11)

 Dispose of defective airbag unit and seat belt tensioner properly and in an environmentally-appropriate way.

16

Install in the reverse order

17

Check supplemental restraint system using STAR DIAGNOSIS

When replacing sidebag unit (11).



AD00.00-P-2000-04MCC

 Airbag

Number

Designation

Model 451.3

Model 451.4

BA91.60-P-1007-01C

Nut, sidebag to backrest

Nm

10

10