Electronic ignition switch control module, location/purpose - GF80.57-P-4120Q

Model 209.3 /4 

Fig 1: Identifying EIS [EZS] Control Unit

Courtesy of MERCEDES-BENZ USA

	Electronic ignition switch control unit, location	The EIS control module (N73) is installed on the steering column.
	Electronic ignition switch control unit, purpose	On vehicles up to 31.05.04	GF80.57-P-4102-03Q
		On vehicles as of 01.06.04	GF80.57-P-4102-03QA