Massage Function Control Unit Component Description - GF91.25-P-5212LF

Model 217, 222 

With Code 432 (Dynamic seats left and right) 

Model 222 

With Code P43 (Rear seat comfort package) 

With Code 432 (Left and right dynamic multicontour seat), shown on driver seat of model 222 

Fig 1: Massage Function Control Unit Components Location - Model 222 With Code 432, P43 (Driver's Side Shown)

Courtesy of MERCEDES-BENZ USA

Model 222 With Code P43 (Rear seat comfort package), shown on left rear seat 

Courtesy of MERCEDES-BENZ USA

Location 

The massage function control unit is located in the backrest frame of the respective seat.

Tasks 

The massage function control unit actuates the massage function for each seat according to the request from the following control units:

• Left front dynamic multicontour seat control unit (N32/15) (with CODE 432 (Left and right dynamic multicontour seat))
• Right front dynamic multicontour seat control unit (N32/16) (with CODE 432 (Left and right dynamic multicontour seat))
• Left rear multicontour seat control unit (N32/20) (model 222 with code P43 (Rear seat comfort package))
• Right rear multicontour seat control unit (N32/21) (model 222 with code P43 (Rear seat comfort package))

Body 

The massage function control unit includes the followings components:

• LIN transceiver
• Control electronics
• Valves