Remove/install radar sensors control unit - AR54.65-P-0040EW

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MODEL 204.0 with CODE (233) Distronic Plus with CODE (234) Blind Spot Assist with CODE (237) Active Blind Spot Assist

MODEL 204.2 with CODE (233) Distronic Plus with CODE (234) Blind Spot Assist with CODE (237) Active Blind Spot Assist

MODEL 204.3 with CODE (233) Distronic Plus with CODE (234) Blind Spot Assist with CODE (237) Active Blind Spot Assist

MODEL 212 up to 31.5.10 with CODE (233) Distronic Plus with CODE (234) Blind Spot Assist

Shown on model 212

Fig 1: Radar Sensors Control Unit Remove/Install Components - Shown On Model 212

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
1	Connect Star Diagnosis and perform initial startup of radar sensors control unit (N62/1) (model 212) or video and radar sensor system control unit (N62/2) (model 204)	When installing a new radar sensors control unit (N62/1) (model 212) or video and radar sensor system control unit (model 204). Copy the temporarily stored basic data to the new radar sensors control unit (N62/1) (model 212) or the new video and radar sensor system control unit (model 204).	AD00.00-P-2000-04A
2	Switch off ignition and remove transmitter key (A8/1) or KEYLESS-GO start/stop button (S2/3) from electronic ignition lock control unit (N73)	KEYLESS-GO start/stop button only on vehicles with code (889) Keyless Go.
3	Fold back floor covering (1) in passenger footwell
4	Unscrew nuts (arrows), remove footrest (2), then fold footrest (2) backward and place on floor covering (1) with electrical lines still connected	Handle the footrest (2) with care in order to prevent damage to the electrical lines.
5	Disconnect electrical connector (3) from radar sensors control unit (N62/1) (model 212) or from video and radar sensor system control unit (model 204)
6	Unscrew bolts (4) and remove radar sensors control unit (N62/1) (model 212) or video and radar sensor system control unit (model 204)	Make sure that the radar sensors control unit (N62/1) (model 212) and the video and radar sensor system control unit (model 204) are seated correctly on the footrest (2).
7	Install in the reverse order