Remove/Install Level Control Valve Unit - AR32.31-P-0650GQ

MODEL 166, 292 with CODE 489 (AIRMATIC) 

	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Notes on AIRmatic		AH32.22-P-1000-02GZ
	Remove/install
1	Lift vehicle on vehicle lift		AR00.60-P-1000GZ
2	Read out fault memory and vent AIRmatic using diagnostic system
		Empty and fill the AIRmatic as per the specifications; the complete wheels must not be touching the ground. The air springs can otherwise be damaged and fail later.	AD00.00-P-2000-04A
3	Switch off ignition and keep transmitter key at a location beyond transmitter range (at least 2 m)
4	Remove front section of fender liner in right fender at front		AR88.10-P-1310GQ
5	Release and disconnect electrical connection (1)
6	Detach pressure lines (2) from AIRmatic valve unit (4)	Note colored marking on pressure lines (2) and AIRmatic valve unit (4). Otherwise the AIRmatic may be damaged.
		Pressure line of air suspension to valve unit	*BA32.22-P-1004-03B
		Socket wrench bit	Figure
		Knife	Figure
7	Seal opened connections	Record plug	Figure
8	Check pressure lines (2) and pressure line connections for damage	If complaint present ↓ Repair pressure lie connections	AR32.22-P-2001-02GZ
		Socket wrench bit	Figure
		Knife	Figure
9	Remove bolts (3)	Screw/bolt, valve block to bracket	*BA32.22-P-1008-03B
10	Remove AIRmatic valve unit (4)
11	Install in the reverse order
	Check
12	Check AIRmatic for leaks		AR32.22-P-8100GZ

AIR SUSPENSION

Number	Designation			Model 166	Model 292
BA32.22-P-1004-03B	Pressure line of air suspension to valve unit	Ø 4mm	Nm	2	2
		Ø 6mm	Nm	3, 5	3, 5

AIR SUSPENSION

Number	Designation		Model 166	Model 292
BA32.22-P-1008-03B	Screw/bolt, valve block to bracket	Nm	4	4

Fig 1: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Knife (000 589 12 28 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Socket Wrench Bit (211 589 00 09 00)

Courtesy of MERCEDES-BENZ USA