Multi-contour seat (MCS) function - GF91.25-P-0001A

MODEL 215 with CODE (404b) Multi-contour backrest driver's seat 

MODEL 215 with CODE (405b) Multi-contour backrest front passenger's seat 

Multi-contour backrest driver's seat, front passenger's seat 

Fig 1: Identifying Switch Train For Multi-Contour Backrest Location

As of 01.06.01  the structure of the switch train is different. The changes are depicted in the document "Multi-contour seat switch structure  ".

The multi-contour backrests for the driver's seat  (code 404), front passenger's seat 

(Code 405) enable the individual adjustment of the relevant seat backrest by inflating and deflating a total of four twin-chamber air cushions. The contour and the surface hardness of the seat backrest can be adjusted. The inflation and deflation of the individual air cushion groups are carried out either manually via the switch train for the front right multi-contour backrest (S108)/ switch train for the front left multi-contour backrest (S109)  or automatically  via the relevant control module for the multicontour backrest when the dynamic lumbar support  function is executed.

The memory function  enables seat backrest settings (air cushion pressure values) to be stored and called up.

Lumbar support:  Curvature of spine in lumbar region