Pneumatic Components on Multi-contour Seat, Connection Diagram

Pneumatic Components on Multi-contour Seat, Connection Diagram






1 Driver seat multicontour seat compressor (V439)

• Front passenger side front passenger multicontour seat compressor (V440)

2 Module carrier with air cushions for lumbar support

3 Left seat bolster inflation adjuster

4 Left backrest bolster inflation adjuster

5 Regulator

• For exhaust air

• Depending on the version, separate component or integrated in the multi-contour seat control module

• The throttle connection is omitted if installing a control module for multicontour seat that has an integrated regulator. Refer to the => electronic parts catalog.

6 Check valve

• Depending on the version, separate component or integrated in the multi-contour seat control module

• Remove the external check valve if installing a multicontour seat control module that contains a check valve. Refer to the => electronic parts catalog

• Installed position: the arrow on the check valve must point toward the control module.

7 Valve block 2 in driver seat (N476) for the massage mat

• Front passenger side valve block 2 in front passenger seat (N478) for massage mat

8 Massage mat

9 Valve block 1 in driver seat (N475) for the massage mat

• Front passenger side valve block 1 in front passenger seat (N477) for massage mat

10 Driver side multicontour seat control module (J873)

• Front passenger side right front multicontour seat control module (J872)

• The connection for the restrictor is deleted on the Original Replacement Part with an integrated check valve and the separate check value must be removed. Refer to the => Parts Catalog

11 Pulsation damper

12 Right backrest bolster inflation adjuster

13 Right seat bolster inflation adjuster