Remove/install air suspension control unit - AR32.22-P-6000TX

MODEL 219.3 with CODE (489) Aromatic (semi-active air suspension) 

Fig 1: Identifying Air Suspension Control Unit Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Notes on avoiding damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Risk of explosion  caused by escaping oxyhydrogen gas. Risk of injury  caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn  injuries caused by short circuit. Risk of poisoning  caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices	No fire, sparks, open flames or smoking. Wear acid-resistant gloves and clothing and safety glasses with side guards. Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground. Only fill liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers.	AS54.10-Z-0001-01A
1	Disconnect ground line from battery		AR54.10-P-0003TX
	Notes on battery		AH54.10-P-0001-01A
2	Fold floor mat (1) on front passenger side toward rear
3	Remove impact absorber (2)
4	Unscrew plastic nuts (3) and fold control unit carrier (4) into the footwell
5	Unscrew bolts (5) and remove AIRmatic with ADS control unit (N51) from control unit carrier (4)		*BA32.22-P-1010-03A
6	Slide locking bolt (6a, 8a) on AIRmatic with ADS control unit (N51) towards arrow (all the way) and detach electrical connector (6, 8)
7	Unlock and disconnect electrical connector (7) from AIRmatic with ADS control unit (N51)
8	Install in the reverse order
9	Calibrate AIRmatic with ADS control unit (N51) with STAR DIAGNOSIS	When installing new control unit
		STAR DIAGNOSIS diagnosis system	*WH58.30-Z-1048-13A