Remove/Install Air Suspension Compressor - AR32.22-P-2001FRX

Model 290 

with code 489 (AIR BODY CONTROL) 

Fig 1: Air Suspension Compressor Components Location - Model 290 With Code 489

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Courtesy of MERCEDES-BENZ USA

Shown on rear elastomer bearing (12) 

Courtesy of MERCEDES-BENZ USA

	Risk of injury  . Skin or eye injuries may result when handling hot or glowing objects.	Wear protective gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels.	AS00.00-Z-0017-01A
Notice	Notes on AIR BODY CONTROL		AH32.22-P-1000-03LWO
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
	Remove
1	Remove lower underfloor paneling.		AR61.30-P-1001FR
2	Guide heat shield (3) out of stud bolts and push to one side.
3	Disconnect electrical connections (4).
4	Separate cable ties (5) and place electric lines to one side.
5	Remove pressure line connection (6) from AIR BODY CONTROL compressor (A9/1) and seal openings using suitable stop plugs.	Record plug	Fig 4
6	Unclip pressure line (14) from holder (15).
7	Unscrew nuts (7) and remove AIR BODY CONTROL compressor (A9/1) in downward direction.
8	Unclip air intake hose (11) at holder (16).	When replacing AIR BODY CONTROL compressor (A9/1).
9	Remove air intake hose (11) from AIR BODY CONTROL compressor (A9/1).	When replacing AIR BODY CONTROL compressor (A9/1).
10	Remove holders (15, 16) from AIR BODY CONTROL compressor (A9/1).	When replacing AIR BODY CONTROL compressor (A9/1).
	Check
11	Check holder (10) and threaded rods (8) for damage.	In the event of a problem, ↓ Replace holder (10) with threaded rods (8).	AR32.22-P-2009FRX
12	Check elastomer bearings (12) for damage and wear.	In the event of a problem, ↓ replace elastomer bearings (12).	AR32.22-P-2011FRX
	Install
13	Attach holders (15, 16) to AIR BODY CONTROL compressor (A9/1).	When replacing AIR BODY CONTROL compressor (A9/1).
14	Attach air intake hose (11) to AIR BODY CONTROL compressor (A9/1).	When replacing AIR BODY CONTROL compressor (A9/1).
15	Clip air intake hose (11) into holder (16).	When replacing AIR BODY CONTROL compressor (A9/1).
16	Place washers (9) onto elastomer bearings (12).
17	Fit compression springs (17) onto protective sleeves (13).
18	Position protective sleeves (13) with compression springs (17) into elastomer bearings (12).
19	Position AIR BODY CONTROL compressor (A9/1) and tighten nuts (7).	Nut, compressor mounting to compressor unit bracket	*BA32.22-P-1001-03J
20	Clip pressure line (14) into holder (15).
21	Remove all stop plugs.
22	Attach pressure line connection (6) to AIR BODY CONTROL compressor (A9/1).
	Note on calculation of tightening torque when using insertion or socket tools with various effective lengths		AH00.00-P-0015-01CW
		The thread on pressure line connection (6) must not be damaged. Otherwise, leaks will occur.
		Pressure line to compressor/valve unit (P)	*BA32.22-P-1004-03J
		Box wrench bit	Fig 3
		If thread is damaged, ↓ Repair pressure line connection (6).
			AR32.22-P-2001-01FR
		Knife	Fig 2
23	Attach new cable ties (5).
24	Contact electrical connectors (4).
25	Replace AIR BODY CONTROL relay.	When replacing AIR BODY CONTROL compressor (A9/1).
	Assignment of engine fuse and relay module		GF54.15-P-1256-32FR
	Check
	Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
26	Perform an engine test run and check air suspension for proper operation.
27	Check compressed-air connection at AIR BODY CONTROL compressor (A9/1) for leak tightness.		AR32.22-P-8101FRX
	Install
28	Position heat shield (3) on stud bolts.
29	Install rear underfloor paneling.		AR61.30-P-1001FR

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

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Fig 3: Identifying Box Wrench Bit (140 589 00 03 00)

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Fig 4: Identifying Record Plug (129 589 00 91 00)

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