Remove/install control and operating unit - AR83.40-P-6350CYA

MODEL 204.9 as of model year 2013 

Fig 1: Identifying Control And Operating Unit

Courtesy of MERCEDES-BENZ USA

	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Buffer the basic data of the automatic air conditioning control and operating unit (N22/7) in Star Diagnosis	When installing a new automatic air conditioning control and operating unit (N22/7).
			AD00.00-P-2000-04A
		Copy the buffered basic data to the new automatic air conditioning control and operating unit (N22/7).
2	Switch off ignition
3	Unclip and remove cover (1) from instrument panel (2)	Carefully release cover (1) using long wedge at all 4 corners. Otherwise the covering (1) can bend or kink in the middle.
		Long wedge	Figure
4	Remove screws/bolts (3) and pull automatic air conditioning operating unit (N22/7) out of instrument panel (2) until the electrical connectors (4) are accessible
5	Disconnect electrical connectors (4)
6	Install in the reverse order

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

Courtesy of MERCEDES-BENZ USA