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Front seat ventilation motors, location/task/design/function - GF91.30-P-3100R

MODEL 230 with CODE (401a) Seat ventilation of front seats 

Shown on front right seat 

Fig 1: Identifying Front Seat Ventilation Motors Location - Shown On Front Right Seat
G05076873Courtesy of MERCEDES-BENZ USA
  Front seat ventilation motors, location The seat ventilation motors are installed in the seat cushion and backrest of the driver and passenger seats.  
  Front seat ventilation motors, task Active ventilation of seat cushion and backrest.  
  Front seat ventilation motors, design The Left front seat cushion ventilation motor group (M18/9) 
Left front seat backrest ventilation motor group (M18/10) 
Right front seat cushion ventilation motor group (M18/11) 
Right front seat backrest ventilation motor group (M18/12) 
each consist of four  fan motors.
Each motor drives a small ventilator that produces a flow of air.
 
  Front seat ventilation motors, function The motors in each motor group are connected in parallel.  They are actuated by the relevant seat control module  . The actuation signal at the control module output is boosted by a blower regulator  .