Front seats

Front seat adjustment

The seat adjustment switches are located on the front doors.

• (1) Head restraint height
• (2) Seat height
• (3) Seat cushion tilt
• (4) Seat cushion depth
• (5) Seat fore and aft adjustment
• (6) Seat backrest tilt

To adjust the seat switch on ignition or open the respective door.

Seat fore and aft adjustment: Press the switch forward or backward in the direction of arrow (5). Adjust seat to a comfortable seating position that still allows you to reach the accelerator/brake pedal safely. The position should be as far to the rear as possible, consistent with ability to properly operate controls.

Seat cushion tilt: Press the switch up or down in the direction of arrow (3) until your upper legs are lightly supported.

Seat cushion depth: Press the switch forward or backward in the direction of arrow (4) until your legs are supported comfortably.

Seat backrest tilt: Press the switch forward or backward in the direction of arrow (6) until your arms are slightly angled when holding the steering wheel.

Seat height: Press the switch up or down in the direction of arrow (2).

Head restraint height: Press the switch up or down in the direction of arrow (1).

Head restraint tilt: Manually adjust the angle of the head restraint. Push or pull on the lower edge of the head restraint cushion.

Unoccupied front passenger seat automatic adjusting: The feature below is deactivated at the factory. If you wish to have it activated, use DAS. The front passenger seat head restraint automatically lowers after a few seconds when the front passenger seat is not occupied. This improves the driver's outward view as well as the forward view from the rear passenger compartment. When the front passenger seat is occupied again, the front passenger seat head restraint returns to the last set position within a few seconds. If the front passenger seat was moved fore or aft while not being occupied, the front passenger seat head restraint returns to a position that corresponds best with the seat’s axial position when the seat is occupied again.

Seat heating

Switch on vehicles with seat heating.

Vehicles equipped with option code 873 - SEAT HEATER FOR LEFT AND RIGHT FRONT SEATS have seat heating feature for front seats.

Rear seats are heated in vehicles with option code 872 - REAR SEAT BENCH HEATING LEFT AND RIGHT.

Seat heating has three modes:

• Rapid heating (two lamps on)
• Normal heating (one lamp on)
• No heating (lamps off)

The system switches from the rapid heating mode to normal heating mode after approximately five minutes. The seat heating will be automatically switched off after approximately 30 minutes.

Seat ventilation

Switch on vehicles with seat heating and ventilation.

Vehicles equipped with option code 401 - DELUXE FRONT SEATS WITH VENTILATION AND HEATING CO additionally to the seat heating are equipped also with the seat ventilation feature.

The blue indicator lamps on the switch show the ventilation level selected. Seat ventilation can be activated manually with the SmartKey in starter switch position 1 or 2. The driver's seat ventilation can be activated to the highest level automatically by the summer opening feature.

Note: If one or all of the lamps on the seat ventilation switch are flashing, there is insufficient voltage since too many electrical consumers are switched on. The seat ventilation and heating switches off automatically. The seat ventilation and heating will switch back on again automatically as soon as sufficient voltage is available.

Non Functional Heated Seats

The seat heater wires and the supply wires often fail due to constant flexing of over several of the rigid seat support frames.

The complete upholstery or seat cushion is no longer replaced, reference document LI91.30-P-048345, "Heated Seats Nonfunctional."

Repair kits are available;

• Left: 17182001982
• Right: 17182000982

http://www.heatedseatkits.com/

DIY Repair to Front Seat Heater Cushion

There are several good articles on performing DIY repair of seat heaters.

• See post #24 at: http://www.benzworld.org/forums/w210...t-problem.html
• http://www.benzworld.org/forums/w210...er-repair.html
• http://www.checkcorp.com/seat-heater/seat-heaters.asp
• http://www.benzworld.org/forums/w210-e-class/1325335-heated-seats-not-heating.html
• http://www.benzworld.org/forums/r171-slk-class/1500932-heated-seat-element-replacement-help.html

DIY How to replace front lumbar supports

• http://www.benzworld.org/forums/w220-s-class/2395441-how-replace-your-front-lumbar-supports.html