Remove/install rear suspension strut - AR32.25-P-1016R (with Active Body Control)

MODEL 230 with CODE (487) Active Body Control (ABC)

Fig 1: Identifying Rear Suspension Strut Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of death caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between the columns of the lifting platform and position the four support plates at the lifting platform support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
	Risk of injury to skin or eyes from hydraulic fluid spraying out under pressure. Risk of poisoning from swallowing hydraulic fluid.	Depressurize the hydraulic system completely before starting any work on the system. Wear protective clothing and safety glasses.	AS00.00-Z-0013-01A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
	Notes on active body control suspension		AH32.50-P-0001-01N
1	Remove separating roller blind in luggage compartment
2	Remove side paneling in the left or right of the luggage compartment		AR68.30-P-4800R
3.1	Separate connector for left rear plunger travel sensor (B22/1) or right rear plunger travel sensor (B22/6)	Model 230.467 /474 /475 /476 /479 Each time a suspension strut is exchanged the plunger travel sensors must be calibrated using STAR DIAGNOSIS in the control unit adaptations menu.
4	Unscrew nut (41f)		*BA32.25-P-1004-04B
5	Remove rear wheel
	Remove/install wheels, rotate if necessary		AP40.10-P-4050Z
6	Relieve pressure in ABC system		AR32.50-P-0001-01N
7	Separate quick-release coupling (41a, 41b) of hydraulic line	Ensure that no dirt gets into the opened quick-release coupling (41a, 41b) as this can lead to the failure of the ABC system. Installation: Ensure that the quick release coupling (41a, 41b) latches completely.
8	Remove paneling of spring control arm
9	Remove bolt (41c) and nut (41d) on spring control arm (6)		*BA32.25-P-1005-04B
10	Detach tie rod (4) on wheel carrier; to do this, unscrew nut (4a)		*BA35.20-P-1001-04C
11	Detach left rear level sensor (B22/7) or right rear level sensor (B22/10) on center ball head (85e)
12	Detach exhaust system at rear
13	Detach spring control arm (6) from rear axle carrier; to do this, unscrew bolt (6a)		*BA35.20-P-1001-01A
14	Press spring control arm (6) downwards and remove spring strut (41)	Do not damage boot of suspension strut (41). Do not bend the level sensor link rod and joints!
	Dispose of suspension strut.		OS32.25-P-0122-01N
15	Install in the reverse order
16	Fill and bleed ABC system		AR32.50-P-0021N
17	Aligning rear axle		AR40.20-P-0200R

STRUTS

Number	Designation		Model 230
BA32.25-P-1004-04B	Nut, rear suspension strut to body	Nm	20
BA32.25-P-1005-04B	Nut, rear strut to spring control arm	Nm	150

SPRING LINK

Number	Designation			Model 230
BA35.20-P-1001-01A	Self-locking nut, track control arm to rear subframe	Stage 1	Nm	50
BA35.20-P-1001-01A	Self-locking nut, track control arm to rear subframe	Stage 2	∠°	90

TIE ROD

Number	Designation			Model 230
BA35.20-P-1001-04C	Self-locking nut, tie rod at wheel carrier	Stage 1	Nm	40
BA35.20-P-1001-04C	Self-locking nut, tie rod at wheel carrier	Stage 2	∠°	90