Front passenger-side door control module, location/purpose - GF72.29-P-4116T

MODEL 211.0/2/6 

Fig 1: Locating Right Front Door Control Module

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Front passenger-side door control module, location	The right front door control module (N69/2) is located in the upper area of the right inner side of the door.
Front passenger-side door control module, purpose		GF72.29-P-4106-03TT