Remove/Install Rain/Light Sensor - AR82.30-P-7801FR

Model 257, 290 

Fig 1: Rain/Light Sensor Component Location - Model 257

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	Commission rain and light sensor with additional functions (B38/2).	When replacing rain/light sensor with additional functions (B38/2).
			AD00.00-P-2000-06FR
2	Switch off ignition and store transmitter key outside of transmitter range (at least 2 m).
3	Unclip and remove cover (1).	Long wedge	Fig 2
4	Unclip and remove cover (2).	Long wedge	Fig 2
5	Unhook retaining clamps (4) on both sides of rain and light sensor with additional functions (B38/2).
6	Remove rain and light sensor with additional functions (B38/2) and disconnect electrical connector (3).	Do not touch surfaces (arrows) of rain/light sensor with additional functions (B38/2). Otherwise, soiling may cause the rain/light sensor with additional functions (B38/2) to malfunction.
7	Install in the reverse order.

Fig 2: Identifying Long Wedge (115 589 03 59 00)

Courtesy of MERCEDES-BENZ USA