Remove/install seat occupancy recognition sensor - AR91.60-P-0720GZ

MODEL 164 as of 441045 with CODE (494) USA version Front passenger only 

Fig 1: Identifying Seat Occupancy Sensor

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Remove cover of front seat cushion. See Remove/install front seat cushion covering - AR91.18-P-1800GZ 

Lift foam covering (1).

Remove front passenger seat occupied and child seat recognition sensor (B48).

Install in the reverse order.