Check seat frame

AR91.10-P-3335R

Check seat frame

30.10.08



Checking

1

Check seat adjustment

 If adjustment is insufficient, perform seat adjustment normalization.

2

Check seat cushion frame (1), seat adjustment and backrest frame for increased amount of play

3

Check longitudinal adjustment (a) of front seat

Forward/back adjustment

*BE91.10-P-1001-03A

 If system fails to operate properly, install new seat cushion frame (1).

Refer to: 

Remove/install seat cushion frame

Front seat with code (404) Left multicontour seat or
code (405) Right multicontour seat

AR91.10-P-3334R

If adjustment ranges are insufficient, install new fore/aft motor.

Refer to: 

Remove/install seat adjustment drive motor (forward/back)

AR91.29-P-1425R

4

Checking height adjustment (b) of the front seat

Height adjustment

*BE91.10-P-1002-03A

 If system fails to operate properly, install new seat cushion frame (1).
Refer to: 

Remove/install seat cushion frame

Front seat with code (404) Left multicontour seat or
code (405) Right multicontour seat

AR91.10-P-3334R

If adjustment ranges are insufficient, install new rear up/down motor.

Refer to: 

Remove/install height adjustment drive motor (rear, up and down)

AR91.29-P-1423R

5

Check seat cushion inclination adjustment (c)

Inclination adjustment

*BE91.10-P-1003-03A

 If system fails to operate properly, install new seat cushion frame (1).
Refer to: 

Remove/install seat cushion frame

Front seat with code (404) Left multicontour seat or
code (405) Right multicontour seat

AR91.10-P-3334R

If adjustment ranges are insufficient, install new front up/down motor.

Refer to: 

Remove/install front seat height adjustment drive motor (front, raise/lower)

AR91.29-P-1424R

6

Check backrest adjustment (d)

Backrest forward/back

*BE91.10-P-1004-03A

 If system fails to operate properly, install new front seat backrest frame.
Refer to: 

Remove/install front seat backrest frame

Front seat with code (404) Left multicontour seat or
code (405) Right multicontour seat

AR91.10-P-3331R

If adjustment ranges are insufficient, install new backrest fore/aft motor.
Refer to: 

Remove/install backrest motor for front seat

AR91.29-P-1431R

7

Check seat cushion longitudinal adjustment (e)

Seat cushion length

*BE91.10-P-1005-03A

 If system fails to operate properly, check seat cushion frame and seat cushion sliders, replace if necessary.

Refer to: 

Remove/install seat cushion

Model 230.4
without code (494) USA version and
without code (P99) Special model "AMG Black Series"

Model 230.4 with code (494) USA version
driver seat

Model 230.4 up to 28.2.06 with code (494) USA version
front passenger seat

AR91.10-P-3310R

Model 230.4 as of 1.3.06 with code (494) USA version
front passenger seat

AR91.10-P-3310RA

If adjustment ranges are inadequate, install new seat cushion fore/aft motor.

Refer to: 

Remove/install seat cushion motor for front seat

AR91.29-P-1422R

8

Check head restraint height adjustment (f)

Head restraint height

*BE91.10-P-1006-03A

 If system fails to operate properly or adjustment range is inadequate, install new head restraint up/down motor.
Refer to: 

Remove/install front seat heat restraint motor

Front seat with code (404) Left multicontour seat or
code (405) Right multicontour seat

AR91.29-P-1432R

9

Remove front seat

AR91.10-P-1000R

10

Remove seat cushion

Model 230.4
without code (494) USA version and
without code (P99) Special model "AMG Black Series"

Model 230.4 with code (494) USA version
driver seat

Model 230.4 up to 28.2.06 with code (494) USA version
front passenger seat

AR91.10-P-3310R

Model 230.4 as of 1.3.06 with code (494) USA version
front passenger seat

AR91.10-P-3310RA

11

Check mount of seat cushion frame (2) at seat cushion frame (1) for deformation and crack formation

 If crack formation is discovered in the vicinity of the weld seams (arrows) or if the mount of seat cushion frame (2) is deformed or cracked, install new seat cushion frame (1).
Refer to: 

Remove/install seat cushion frame

Front seat with code (404) Left multicontour seat or
code (405) Right multicontour seat

AR91.10-P-3334R

12

Check seat belts for damage

 If emergency tensioning retractor units have been triggered, check backrest frame for damage.
Refer to: 

AP91.40-P-9150M

Check backrest frame structure

AR91.10-P-3336R



Assessment of airbag and belt tensioner units in accident vehicles

AH91.00-P-0006-01B

13

Install seat cushion

Model 230.4
without code (494) USA version and
without code (P99) Special model "AMG Black Series"

Model 230.4 with code (494) USA version
driver seat

Model 230.4 up to 28.2.06 with code (494) USA version
front passenger seat

AR91.10-P-3310R

Model 230.4 as of 1.3.06 with code (494) USA version
front passenger seat

AR91.10-P-3310RA

14

Install front seat

AR91.10-P-1000R

15

Read out fault memory, erase if necessary



Connect STAR DIAGNOSIS and read out fault memory

AD00.00-P-2000-04A

Number

Designation

Model 230

BE91.10-P-1001-03A

Forward/back adjustment

mm

270

BE91.10-P-1002-03A

Height adjustment

mm

65

BE91.10-P-1003-03A

Inclination adjustment

°

8

BE91.10-P-1004-03A

Backrest forward/back

°

81

BE91.10-P-1005-03A

Seat cushion length

mm

60

BE91.10-P-1006-03A

Head restraint height

mm

110