Remove/install seat cushion cover

AR91.10-P-3312MCV

Remove/install seat cushion cover

4.10.07

 

Remove/install

 Danger!

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

 Danger!

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

1

Remove front passenger seat and carefully place on a suitable surface with backrest (8)

AR91.10-P-1020MCU

2.1

Unclip sidebag plug (1) from seat heater plug (2)

On vehicles with code (S17) Seat heaters (FFO)

2.2

Unclip sidebag connector (1) from bracket on supporting seat frame (7)

On vehicles without code (S17) Seat heater (FFO)

3

Expose sidebag wiring harness from brackets (3, 5)

4

Unclip seat belt buckle connector (4) from bracket on supporting seat frame (7)

5

Expose seat belt buckle wiring harness (13) from brackets (3)

6

Expose wiring harness for seat heater and disconnect heated cushion connector (6)

On vehicles with code (S17) Seat heaters (FFO)

7

Remove cable tie (arrow)

8

Place front passenger seat on guide rails

9

Unclip belt tension sensor plug (15) and put to one side

10

Unclip belt tension sensor retaining plate (14) in rear area and remove

11

Fold backrest (8) forward

12

Remove bolts (9) of backrest (8)

 Installation: Position backrest (8) on supporting seat frame (7) and turn bolts (9, 11) all the way in. Tighten bolts (11) starting from the front. Move backrest (8) to its rearmost position and lock in place. Tighten bolts (9) starting from the rear. While doing so, press the backrest (8) backwards.



*BA91.10-P-1002-01P

13

Lift backrest (8) in vicinity of seat belt buckle (12) and lead seat belt buckle wiring harness (13) out of supporting seat frame (7)

 Installation: Ensure that grommet (10) is seated correctly.

14

Remove bolts (11) from backrest (8) and remove backrest (8)

15

Place supporting seat frame (7) on seat cushion cover (18) and detach terminal strip (16) of seat cushion cover (18) in rear area of supporting seat frame (7)

16

Detach terminal strip (17) of seat cushion cover (18) in side and front area of supporting seat frame (7)

 Installation: The terminal strip (17) must audibly engage.

17

Place supporting seat frame (7) on guide rails

18

Start by folding down seat cushion cover (18) in rear area and then on sides and front until hog rings of side staple strips are accessible (arrows A)

 Ensure that the seat cushion cover (18) is not torn and thus damaged, as it otherwise must be replaced.

19

Remove hog rings of side staple strips using suitable side cutting pliers (arrows A). Next, fold back seat cushion cover (18) in front area until hog rings of center staple strip are accessible and remove them with the side cutting pliers (arrows B)

 Remove all hog rings as otherwise the seat cushion (19) or the seat cushion cover (18) can be damaged.

 Installation: Use new hog rings.

Insert hog ring into the padding clip pliers and hook into the eyelet of the staple strips, then hook into the wire of the seat cushion (19) and push padding clip pliers together.

Align all seams (20) of seat cushion cover (18) and position in the cutouts in the seat cushion (19).



*454589033700

20

Continue folding back seat cushion cover (18) until hog rings of rear staple strip are accessible and remove them with the side cutting pliers (arrows C)

 Remove all hog rings as otherwise the seat cushion (19) or the seat cushion cover (18) can be damaged.

 Installation: Use new hog rings.

Insert hog ring into the padding clip pliers and hook into the eyelet of the staple strips, then hook into the wire of the seat cushion (19) and push padding clip pliers together.



*454589033700

21

Remove seat cushion cover (18)

 Further dismantling the supporting seat frame (7) is not permissible.

22

Install in the reverse order

Number

Designation

Model 451.3/4

BA91.10-P-1002-01P

Bolt of backrest frame to seat frame

Nm

45