Item name | Spare part number | Description |
1 | - | Longitudinal adjustment (move forward/back) |
2 | - | Backrest tilt adjustment |
3 | - | Seat cushion height adjustment |
Longitudinal adjustment (move forward/back)
Push the switch forward or backward and hold until the seat moves to the desired position.
Backrest tilt adjustment
Turn the switch forward or backward and hold it until the seatback is at the desired angle.
Seat cushion height adjustment
To adjust the height of the seat cushion, push the switch up or down.
Front seat adjustment drives
NOTE: On vehicles from model year 2008, the passenger seat may also be equipped with a power 8-way adjustment system.
The front seats are adjusted by permanent magnet motors coupled to rack and pinion mechanisms. In the event of a mechanism sticking, the internal thermal relay cuts off the voltage supply to the motor. Each seat adjustment switch has two pins. Both pins are normally grounded. When the switch is pressed, one of the contacts is energized, while the other remains grounded. Pressing the switch in the opposite direction reverses the voltage and «mass», as a result of which the direction of rotation of the electric motor is reversed.
Lumbar support adjustment
Vehicles from model year 2008
On vehicles as of model year 2008, the power front seats are equipped with power adjustable lumbar support. The lumbar support pump inflates the chamber in the seat back, which provides additional passenger comfort.
Location of the lumbar support adjustment switch
Adjustment is via a rocker switch located on the outside of the seat, on top of the side trim of the seat cushion. The switch is connected to an air pump that inflates the lumbar support chamber to provide the necessary adjustment. The air pump works as long as the switch is in the inflation position. When the switch is moved to the bleed position, it activates the bleed solenoid valve, allowing air to escape from the chamber. The lumbar support chamber is protected from over inflation by a pressure relief valve.
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