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Heated seats (HS), function - GF91.30-P-0003F

MODEL 210 with CODE (872) Left and right electric rear heated seats with CODE (873) Left and right front heated seats 

MODEL 202 as of 01.09.95 with CODE (873) Left and right front heated seats 

Fig 1: Identifying Heated Seats (HS), Function
G04632689Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
1 Function of front heated seats   GF91.30-P-0004F 
2 Function of rear heated seats   GF91.30-P-0005F