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

MODEL 230 

with CODE (404b) Multi-contour backrest driver seat 

with CODE (405b) Multi-contour backrest passenger seat 

Fig 1: Multi-Contour Seat Function Diagram
G05076861Courtesy of MERCEDES-BENZ USA

Networking of the components of the multi-contour backrest 

Multi-contour backrests for driver seat/front passenger seat 

The multi-contour backrests for driver seat  (code 404b), front passenger seat 

(Code 405b) permit an individual adjustment of the respective seat backrest by filling and emptying air from a total of four double chamber air cushions. The contour and the surface hardness of the seat backrest can be adjusted.

The filling and emptying of air in the individual air cushion groups are controlled either manually  by:

if the dynamic lumbar support  function is executed.

Memory feature 

For the driver seat/front passenger seat  it is possible to store and call up seat backrest adjustments (air cushion pressure values) via the memory feature  .

IMPORTANTLumbar support:  Curvature of spine in lumbar region

Fig 2: Identifying Switch Group For Right And Left Front Multi-Contour Backrest
G05076862Courtesy of MERCEDES-BENZ USA
  Manual filling and emptying of air in the air cushions in the multi-contour seat, function   GF91.25-P-2000R 
  Dynamic filling and emptying of air in the air cushions in the multi-contour seat, function   GF91.25-P-2001R 
  Adjust front multi-contour seats, function   GF91.25-P-2002R