Heated seats/seat ventilation control unit, component description - GF91.30-P-5209GZ

MODEL 164, 251 with CODE (401) Front comfort seats, incl. seat heating and seat ventilation with CODE (872) Electrically heated left and right rear seats

Shown on model 164.8

Fig 1: Identifying Heated Seats/Seat Ventilation Control Unit Component - Shown On Model 164.8

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Location

The HS [SIH], seat ventilation and steering wheel heater control unit is located in the 2nd seat row under the seat cushion on the passenger side.

Tasks

Voltage supply

of the 2nd seat row heated cushions
of the seat ventilation blower regulators
of the steering wheel heater

Actuation

of the 2nd seat row heated seats relay
of the steering wheel heater relay
of the seat ventilation blower regulators
of the 2nd seat row heated cushions
of the steering wheel heater