Removing and installing level control valve unit - AR32.31-P-0650I: Notes

MODEL 220 except CODE (487) Active Body Control (ABC) 

Fig 1: Identifying Pressure Line Connections (Model 220 Except Code (487) Active Body Control (ABC))

	Remove/install
	Special information on AIRmatic		AH32.22-P-1000-02I
1	Drain AIRmatic system using Star Diagnosis
2	Remove compressor		AR32.22-P-2001I
3	Detach plug from AIRmatic pressure sensor (B7)
4	Detach valve unit connector (Y36/6x1)
5	Undo pressure line terminals (1LF, 2RF, 3LR, 4RR, 5CR, P)	Observe assignment of pressure lines! Seal off pressure lines using blind plugs for the duration of the repair work. If pressure line or its connection fittings are damaged:↓	*BA32.22-P-1006-03A
		Repairing AIRmatic pressure line connection	AR32.22-P-2001-02I
6	Undo nuts (arrows) and remove level control valve unit (Y36/6)		*BA32.22-P-1005-03A
7	Remove rubber buffer to level control valve unit		AR32.31-P-0650-01I
8	Install in the reverse order
9	Fill AIRmatic system using Star Diagnosis	Pressurize to 5 bar The wheels must not touch the ground while pressurizing because the air bellows in the suspension strut will be destroyed if pressurized with the suspension deflected.
10	Check AIRmatic for leaks.		AR32.22-P-8100I

AIR SUSPENSION

Number	Designation		Model 220
BA32.22-P-1005-03A	Nut of valve unit to bracket	Nm	8
BA32.22-P-1006-03A	Pressure line of air suspension to valve unit	Nm	5
BA32.22-P-1007-03A	Rubber buffer to valve unit	Nm	8