Empty Air Suspension, Fill Externally - AR32.22-P-0013ME

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) 

Courtesy of MERCEDES-BENZ USA

	Risk of explosion  when using a forming gas with incorrect mixing ratio. Risk of suffocation due to inhalation of forming gas. Risk of injury  due to bursting of high-pressure hoses.	Wear safety glasses and protective gloves. No smoking or open flames. Work in well-ventilated rooms only.	AS83.00-Z-0001-02A
Topical note	Notes on air suspension		AH32.22-P-1000-01T
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Draining
1	Lift vehicle with vehicle lift.		AR00.60-P-1006A
2	Completely release the pneumatic pressure of the air suspension using the diagnostic system.
		The complete wheels must not touch the ground. Otherwise, the suspension struts and air suspension bellows may be damaged.	AD00.00-P-2000-06ME
		To remove the electropneumatic controller unit (1), the central reservoir and the associated pressure lines, the air suspension must be completely emptied and filled externally. Select menu item "Actuations" in active suspension and damping system control unit.
	Remove
3	Remove left front wheel and tire assembly.		AR40.10-P-1102ME
4	Remove front section of fender liner in front left fender.		AR88.10-P-1301ME
5	Remove air intake and return line (2) from electropneumatic controller unit (1), unclip from holder (3) and hang to one side.
	Filling
6	Attach adapter (4) instead of air intake and return line (2) to electropneumatic controller unit (1), as shown, and fix in place with thumb screw (5).
	167 588 00 91 00 Adapter		WS32.00-P-0035B
7	Connect line (6) of adapter (4) to leak tester.
	000 588 19 21 00 Leak tester		WS83.00-P-0035B
8	Open shutoff valve in line (6) and adjust pressure at leak tester.	Adjustment pressure on leak tester for external filling of air suspension	*BE32.22-P-1001-01A
9	Fill pneumatic pressure system of air suspension externally using the diagnostic system and an adapter.
		The complete wheels must not touch the ground. Otherwise, the suspension struts and air suspension bellows may be damaged. Select menu item "Actuations" in active suspension and damping system control unit.	AD00.00-P-2000-06ME
10	Remove adapter (4) from electropneumatic controller unit (1).
	Install
11	Clip air intake and return line (2) onto holder (3) and attach to electropneumatic controller unit (1).
12	Install front section of fender liner into front left fender.		AR88.10-P-1301ME
13	Install left front wheel and tire assembly.		AR40.10-P-1102ME