Remove/install backup antenna for Tele-Aid emergency call system - AR82.95-P-0004W

MODEL 172.4 with CODE (494) USA version 

Fig 1: Identifying Tele-Aid Emergency Call System Backup Antenna Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Switch off ignition and remove transmitter key from EZS control unit	On vehicles with code (889) Keyless-Go: Press Keyless-Go start/stop button repeatedly until ignition is switched off. Remove transmitter key from vehicle and store it in a location beyond its transmission range (at least 2 m).
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
2	Remove cover (1)
3	Disconnect electrical connector (2)
4	Remove screws/bolts from emergency call system antenna (A2/52)
5	Remove emergency call system antenna (A2/52)
6	Install in the reverse order