Remove/install level control valve unit - AR32.31-P-0650TX

MODEL 219.3 with CODE (489) Aromatic (semi-active air suspension) 

Fig 1: Identifying Level Control Valve Unit Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Empty AIRmatic system using STAR DIAGNOSIS	STAR DIAGNOSIS, diagnosis system	*WH58.30-Z-1048-13A
	Special information on AIRmatic		AH32.22-P-1000-02T
2.1	Remove front section of engine compartment paneling	Vehicles with gasoline engines	AR61.20-P-1105TX
2.2	Remove front section of bottom section of soundproofing	Vehicles with diesel engines	AR94.30-P-5300TX
3	Remove front section of fender liner in left front fender		AR88.10-P-1310TX
4	Disconnect electrical connector (1) from AIRmatic pressure sensor (B7)
5	Disconnect electrical connector (2) from AIRmatic central reservoir charge valve (Y36/6)
6	Mark and disconnect pressure line connections (HA, P, SP, VL, VR)	To ensure flawless performance from the suspension observe the routing of the pressure lines. Seal off pressure lines with blind plugs for the duration of the repair work.
		Before assembly, damaged pressure line connections (HA, P, SP, VL, VR) or damaged pressure lines must be repaired.	AR32.22-P-2001-02TX
			*BA32.22-P-1006-03A
			Figure
7	Unscrew bolts (3) and remove AIRmatic central reservoir charge valve (Y36/6)		*BA32.22-P-1008-03A
8	Install in the reverse order
9	Fill AIRmatic system using STAR DIAGNOSIS	During charging the wheels should not be in contact with the ground, as the spring elements in the air spring bellows would be destroyed if pressurized with the suspension compressed.
10	Check AIRmatic for leaks.		AR32.22-P-8100TX

Fig 2: Identifying Wrench Socket (211 589 00 09 00)

Courtesy of MERCEDES-BENZ USA