Remove/install pulsation damper - AR32.50-P-0013SX

MODEL 216, 221.0 /1 with CODE (487) Active Body Control (ABC) 

Fig 1: Identifying Pulsation Damper Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Notes on Active Body Control suspension		AH32.50-P-0001-01N
1.1	Remove tandem pump (1)	Engine 156, 273.961 Engine 273.922	AR46.30-P-0500SY
		Engine 275 except 275.953 in model 216 Engine 275.953 in model 216 Engine 629	AR46.30-P-0500SYA
1.2	Remove Active Body Control hydraulic pump	Engine 157, 278	AR32.50-P-0030MMB
2	Clean the area around the pulsation damper (2)
3	Clamp tandem pump (1) or hydraulic pump in vise by fixing arm (4) so that pulsation damper (2) points toward floor	The pulsation damper (2) should always be detached from the tandem pump (1) or from the hydraulic pump with the threaded opening (3) facing down, otherwise dirt will enter the tandem pump (1) or hydraulic pump. In the event of noncompliance this can lead to the failure of the ABC system.
4	Unscrew pulsation damper (2) from tandem pump or hydraulic pump	Installation:  Pay attention to correct seat of the sealing ring.
			*BA32.50-P-1010-01B
	Notes on scrapping gas-filled hydraulic components		OS00.00-P-1000-01A
5	Install in the reverse order