Remove/Install AIRSCARF Control Unit - AR91.30-P-2006RGR

Model 190.4 

With Code 403 (Heating in head area) 

Courtesy of MERCEDES-BENZ USA

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 initial startup of AIRSCARF control unit (N25/7)	When replacing AIRSCARF control unit (N25/7).
			AD00.00-P-2000-04B
2	Release side trim in rear, and place to side	Seat belts do not have to be released.	AR68.30-P-4780RGR
3	Unclip expansion rivets (2), and remove cap (3)	Clip remover	Fig 1
4	Remove front soft top compartment trim (1)	Helper required. : It must be ensured that the front soft top compartment trim (1) is seated correctly in the guide (arrows C).
5	Release and disconnect electrical connectors at AIRSCARF control unit (N25/7)	Pay attention to routing and padding of wiring harness and electrical connectors. To prevent noise development during vehicle operation.
6	Unscrew nuts (6)
7	Remove AIRSCARF control unit (N25/7)
8	Install in the reverse order

Fig 1: Identifying Clip Remover (452 589 01 63 00)

Courtesy of MERCEDES-BENZ USA