Remove/Install Electronic Ignition Lock Control Unit - AR54.21-P-0038LFM

Model 217, 222 

as of model year 2018 

Fig 1: Electronic Ignition Lock Control Unit Component Location - Model 217 As Of Model Year 2018

Courtesy of MERCEDES-BENZ USA

Topical note	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Perform commissioning of electronic ignition lock control unit (N73)	When replacing the electronic ignition lock control unit (N73).
			AD00.00-P-2000-04B
2	Disconnect battery ground line		AR54.10-P-0003LF
3	Remove center console		AR68.20-P-2000LFM
4	Unscrew bolt (1)
5	Guide out electronic ignition lock control unit (N73) until the electrical connector (2) is accessible
6	Disconnect electrical connection (2)
7	Remove electronic ignition lock control unit (N73)
8	Install in the reverse order