Remove/Install Air Suspension Valve Unit - AR32.22-P-2015FRX

Model 290

with code 489 (AIR BODY CONTROL)

MODIFICATION NOTES

04.04.2019	Basic data added.	Operation step 10
23.05.2019	Pressure line to compressor/valve unit (P)		BA32.22-P-1004-03J

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

Courtesy of MERCEDES-BENZ USA

Topical note	Notes on AIR BODY CONTROL		AH32.22-P-1000-03LWO
	Remove
1	Release pressure of air suspension using vehicle diagnosis system.
			AD00.00-P-2000-06FR
2	Remove rear underfloor paneling.		AR61.30-P-1001FR
3	Guide heat shield (1) out of stud bolts and push to the side.
4	Disconnect electrical connection (2).
5	Mark pressure line connections (3) relative to AIR BODY CONTROL valve unit (Y36/6).
6	Detach pressure line connections (3) from AIR BODY CONTROL valve unit (Y36/6) and seal openings with suitable stop plugs.	Record plug	Fig 5
7	Remove screws (4) and remove AIR BODY CONTROL valve unit (Y36/6).
	Install
8	Position AIR BODY CONTROL valve unit (Y36/6) and screw in screws (4).	Bolt, valve unit to bracket for compressor unit	*BA32.22-P-1003-03J
9	Remove all stop plugs.
10	Attach pressure line connections (3) to AIR BODY CONTROL valve unit (Y36/6).	The threads of pressure line connections (3) must not be damaged. Otherwise, leaks will occur.
		Observe markings.
		Pressure line for air suspension on front axle/rear axle to valve unit	*BA32.22-P-1006-03J
		Pressure line to compressor/valve unit (P)	*BA32.22-P-1004-03J
		Box wrench bit	Fig 3
		Box wrench bit	Fig 4
		If threads are damaged: ↓ Repair pressure line connections (3).
			AR32.22-P-2001-01FR
		Knife	Fig 2
11	Connect electrical connector (2).
	Check
12	Read out and delete fault memory using vehicle diagnosis system.
			AD00.00-P-2000-06FR
	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
13	Perform an engine test run and check air suspension for proper operation.
14	Check AIR BODY CONTROL valve unit (Y36/6) for leak tightness.		AR32.22-P-8101FRX
	Install
15	Position heat shield (1) on stud bolts.
16	Install rear underfloor paneling.		AR61.30-P-1001FR
17	Build up pressure of air suspension using vehicle diagnosis system.
			AD00.00-P-2000-06FR