(Remove/Install Air Suspension Central Reservoir - AR32.22-P-2028MEH)

Model 167.117/154/317/354 

With Code 489 (AIRMATIC Dual Control/semi-active air suspension) 

Except Code 490 (Electrohydraulic suspension) 

Model 167.117/154/317/354 

With Code 489 (AIRMATIC Dual Control/semi-active air suspension) 

With Code 490 (Electrohydraulic suspension) 

Courtesy of MERCEDES-BENZ USA

	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
Topical note	Notes on air suspension		AH32.22-P-1000-01T
	Remove/install
1	Completely release the pneumatic pressure of the air suspension using the diagnostic system.		AR32.22-P-0013ME
		Build up the pneumatic pressure of the air suspension externally using the diagnostic system.
2	Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).
3	Remove right rear underfloor paneling.		AR61.30-P-1001ME
		Install right rear underfloor paneling only after leak test.
4	Release heat shield (1) until the screws (3) are accessible.	When removing the left central reservoir (5).
5	Detach pneumatic pressure lines (2) from central reservoir (5) and seal openings with suitable stop plugs.	Do not stretch, crush or kink pneumatic pressure lines (2). This will result in damage to pneumatic pressure lines (2) and can impair their function. The thread on the connection of the respective pneumatic pressure lines (2) and the pneumatic pressure lines (2) themselves must not be damaged. Otherwise, leaks will occur.
		Pressure line of air suspension to central reservoir	*BA32.22-P-1009-03B
		Record plug	Fig 5
		Socket wrench bit	Fig 1
		Torque wrench	Fig 2
		Box wrench bit If a thread or a pneumatic pressure line (2) is damaged, ↓ repair connection of pneumatic pressure line (2) or repair pneumatic pressure line (2).	Fig 4
			AR32.22-P-2001-01ME
		Pressure line of air suspension to central reservoir	*BA32.22-P-1009-03B
		Box wrench bit	Fig 4
		Knife	Fig 3
6	Remove screws (3) from respective central reservoir (5).
7	Remove nut (4) from respective central reservoir (5).
8	Bring respective central reservoir (5) out of holder and remove.
9	Install in the reverse order.
	Check
10	Check connections of pneumatic pressure lines (2) on central reservoir (5) for leak tightness.		AR32.22-P-8000ME

Fig 1: Identifying Socket Wrench Bit (211 589 00 09 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Torque Wrench (001 589 86 21 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Knife (000 589 12 28 00)

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Fig 4: Identifying Box Wrench Bit (001 589 00 03 00)

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Fig 5: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA