Remove/Install Seat Adjustment Unit On Front Seat - AR91.10-P-1452MFA
Model 118, 177, 247
except code 555 (AMMG-Performance Seat)
Model 243
Shown on driver's seat with code 7U2 (Front comfort suspension seat)
Shown on front passenger seat with code 7U3 (Seat type variant >3) and F with code U10 (Automatic front passenger airbag shutoff)
| Risk of injury. Moving parts can pinch, crush or, in extreme cases even sever extremities. | No parts of the body or limbs should be within the operating area of mechanical components when moving components. | AS00.00-Z-0009-01A | |
| Risk of injury caused by scraping or cutting body parts on sharp vehicle parts | Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels. |
AS00.00-Z-0017-01A | |
| Notice | 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 | ||
| Remove/install | |||
| 1 | Remove left or right seat cushion. | AR91.10-P-3310MFA | |
| 2 | Remove front passenger seat occupancy recognition sensor (B41/1). | Model 118, 177, 247 with code U10 (Front passenger seat with weight sensor) except code 555 (AMG-Performance Seat) Model 243 with code U10 (Front passenger seat with weight sensor) If the seat adjustment unit (1) on the passenger side is replaced. |
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| AR91.60-P-0720MFA | |||
| 3 | Remove seat backrest. | AR91.10-P-1061MFA | |
| 4 | Remove seat belt buckle. | If the seat adjustment unit (1) is replaced. | |
| AR91.40-P-1510MFA | |||
| 5 | Remove front seat heating/seat ventilation control unit (N25/17). | Model 118, 177, 247 with code 401 (Climatised front seats) with code 873 (Left and right driver's seat heating) except code 275 (Driver's seat, electrically adjustable with memory function) except code 555 (AMG-Performance Seat) Model 243 with code 401 (Climatised front seats) with code 873 (Left and right driver's seat heating) except code 275 (Driver's seat, electrically adjustable with memory function) |
AR91.30-P-0036MFA |
| 6 | Release electrical connectors from bracket (2), disconnect and expose electrical wiring harnesses (arrows). | ||
| 7 | Remove remaining detachable parts from seat adjustment unit (1). | ||
| 8 | Install in the reverse order. |