Remove/Install Air Suspension Bellows - AR32.22-P-2003ME

Model 167 

with code 489 (AIRMATIC Dual Control/semi-active air suspension) 

except code 490 (Electrohydraulic suspension) 

Model 167 

with code 489 (AIRMATIC Dual Control/semi-active air suspension) 

with code 490 (Electrohydraulic suspension) 

Shown on right rear side of vehicle 

	Risk of injury  caused by pinching or crushing when working on springs or spring bodies that are under tension	Use only approved tensioning devices; additionally screen off hazardous area if necessary. Check special tools for damage and proper operation (visual inspection). Wear protective gloves.	AS00.00-Z-0001-01A
Topical note	Notes on air suspension		AH32.22-P-1000-01T
	Notes on repair work on suspension components		AH00.00-P-0100-01A
	Remove/install
1	Remove right or left rear wheel and tire assembly.		AR40.10-P-1102ME
2	Transfer the pneumatic pressure of air suspension bellows (3) into the central reservoir using the diagnostic system.
		The complete wheels must not touch the ground. Otherwise air suspension bellows (3) may suffer initial damage and malfunction at a later stage.	AD00.00-P-2000-06ME
		Select menu item "Actuations" in active suspension and damping system control unit.
		Transfer pneumatic pressure out of the central reservoir into air suspension bellows (3) using the diagnostic system.
3	Remove trim (1) from transverse control arm.
4	Detach level sensor linkage from transverse control arm.		AR82.10-P-0005ME
5	Detach pneumatic pressure line from air suspension bellows (3) and seal exposed openings with suitable stop plugs.	Air suspension pressure line to rear air suspension bellows	*BA32.22-P-1001-03B
		Box wrench bit	Fig 4
		Socket wrench bit	Fig 2
		Record plug	Fig 5
6	Detach air suspension bellows (3) at their upper frame from retaining clip (2).	Do not pull on air suspension bellows (3) and do not twist air suspension bellows (3). Otherwise, air suspension bellows (3) will be damaged.
7	Release catch hooks (A), slide air suspension bellows (3) together and remove upwards.	Ensure catch hooks (A) are correctly seated.
8	Remove retaining clip (2).	Remove rest of retaining clip (2) from air suspension bellows (3) and frame floor. replace retaining clip (2).
	Check
9	Check pneumatic pressure line and pneumatic pressure line connection on air suspension bellows (3) for damage.	If damage is present, ↓ repair corresponding component part.
			AR32.22-P-2001-01ME
		Air suspension pressure line to rear air suspension bellows	*BA32.22-P-1001-03B
		Box wrench bit	Fig 4
		Socket wrench bit	Fig 2
		Knife	Fig 3
10	Check condition of air suspension bellows (3).	There must not be any intrusions present on the protective boot. Otherwise the movement of the spring will damage the spring bellows on the inside. If there is a problem, ↓ Replace air suspension bellows (3).
11	Install in the reverse order.
	Check
12	Check air suspension for leak tightness.		AR32.22-P-8000ME

Number	Designation		Model 167 with code 489 (AIRMATIC Dual Control/semi-active air suspension)
BA32.22-P-1001-03B	Air suspension pressure line to rear air suspension bellows	Nm	2