Removing and installing IR drive authorization system control module - AR80.30-P-4500CA

WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.

MODEL 140 as of 1.6.96 up to 31.5.97

Fig 1: Identifying IR Drive Authorization System Control Module Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Removal, installation
1	Remove instrument cluster
2	Disconnect 2-pin CAN connector (1)
3	Disconnect 2-pin connector for transponder coil (2)
4	Disconnect 18-pin connector
	Press retaining lugs (arrows) apart
	Remove IR DAS control module (N54/1) from base plate (4)	When replacing control module or remote control key always indicate lock number, because the two parts are matched to one another. After replacing the IR DAS control module (N54/1) perform version coding according to diagnosis information Installation: When installing insert rear retaining lug on IR DAS control module (N54/1) into base plate (4).
	Reinstall in opposite order