Remove/install seat adjustment unit on front seat

AR91.10-P-1452FR

Remove/install seat adjustment unit on front seat

31.10.2018

Model

257, 290

1

Seat adjustment unit

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

 

Remove/install

1

Remove seat cushion padding.

Model 290
with code 555 (AMG Performance seats)

AR91.10-P-5040FRX

Model 257
with code 275 (Memory package)
Model 290
with code 275 (Memory package)
except code 555 (AMG Performance seats)

AR91.10-P-5040FRA

Model 257
except code 275 (Memory package)
Model 290
except code 275 (Memory package)
except code 555 (AMG Performance seats)

AR91.10-P-5040FR

2

Remove seat backrest.

AR91.10-P-1061FR

3.1

Remove sensor mat with weight sensing system (WSS) sensor from seat cushion frame.

Model 257, 290
with code U10 (Automatic seat occupancy recognition and child seat recognition)
When removing seat adjustment unit (1) on front passenger side.

AR91.60-P-0720FR

3.2

Remove seat occupancy recognition from seat cushion frame.

Model 257, 290
except code U10 (Automatic seat occupancy recognition and child seat recognition)
When removing seat adjustment unit (1) on front passenger side.

AR91.60-P-0720FRA

4

Remove seat belt buckle.

AR91.40-P-1515FR

5

Remove front seat control unit.

Model 257, 290
with code 221 (Electrically adjustable left driver seat)
Model 257, 290
with code 222 (Electrically adjustable right front seat)
Model 257, 290
with code 275 (Memory package)

AR91.29-P-1550FR

6.1

Remove front seat heating/seat ventilation control unit.

Model 257, 290
with code 401 (Climatised front seats)
except code 221 (Electrically adjustable left driver seat)
except code 222 (Electrically adjustable right front seat)
except code 275 (Memory package)
except code 902 (Seat heater Plus for driver and front passenger)
Model 257, 290
with code 873 (Seat heaters for driver and front passenger)
except code 221 (Electrically adjustable left driver seat)
except code 222 (Electrically adjustable right front seat)
except code 275 (Memory package)
except code 902 (Seat heater Plus for driver and front passenger)
When removing seat adjustment unit (1) on front passenger side.

AR91.30-P-0036FR

6.2

Remove seat heating control unit of driver's seat.

Model 257, 290
with code 902 (Seat heater Plus for driver and front passenger)
When removing seat adjustment unit (1) on driver's side.

AR91.30-P-0034FR

6.3

Remove seat heating control unit of front passenger seat.

Model 257, 290
with code 902 (Seat heater Plus for driver and front passenger)
When removing seat adjustment unit (1) on front passenger side.

AR91.30-P-0035FR

7

Remove remaining detachable parts from seat adjustment unit (1).

8

Install in the reverse order