Remove/install spring control arm, replace rubber bushing - AR35.20-P-0114RK

MODEL 231

Fig 1: Spring Control Arm Rubber Bushing Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Risk of death caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift 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 hydraulic system completely before starting any work on it. Wear protective clothing and safety glasses.	AS00.00-Z-0013-01A
	Notes on fitting hydraulic lines and hoses		AH32.50-P-0001-02A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
	Notes on Active Body Control suspension		AH32.50-P-0001-01LF
	Notes on Active Body Control suspension		AH32.50-P-0001-01N
	Notes on repair work on suspension components		AH00.00-P-0100-01A
	Remove/install
1	Secure vehicle on vehicle lift		AR00.60-P-0100TX
2	Lift vehicle on vehicle lift		AR00.60-P-1000TX
3	Detach rear complete wheel
	Remove/install wheels, rotate if necessary		AP40.10-P-4050EW
4.1	Release pressure in ABC system	Model 231.### ## up to 021273 with code 487 (Active Body Control (ABC)) Before opening the hydraulic system the area around the separation point should be cleaned thoroughly. Even the smallest dirt particles, introduced into the hydraulic components, can lead to malfunctions and a total failure of the hydraulic system.	AR32.50-P-0001-01N
		Bleed screw on soldered fitting in hydraulic line	*BA32.50-P-1001-02B
4.2	Release pressure in ABC system using Star Diagnosis	Model 231.### ## as of 021274 with code 487 (Active Body Control (ABC))	AR32.50-P-0001-01LF
			AD00.00-P-2000-04A

5	Support axle half on steering knuckle
	000 588 11 62 00 Major assembly mount		WS01.00-P-0092B
	000 588 10 62 00 Support plate		WS26.00-P-3309B
6	Unscrew nut (13) and pull out bolt (9)	Nut, torsion bar linkage to spring control arm	*BA32.20-P-1001-02H
7	Unscrew nut (8) and pull out bolt (14)	Nut, suspension strut for rear axle to spring control arm	*BA32.25-P-1004-04N
8	Unscrew nut (10) and pull out bolt (12)	Self-locking nut, spring control arm to wheel carrier	*BA35.20-P-1002-01D
9	Unscrew nut (7), pull out bolt (6) and detach spring control arm (1) from rear axle carrier (4)	Self-locking nut, spring control arm to rear axle carrier	*BA35.20-P-1001-01D
10	Detach spring control arm (1) from wheel carrier (11) and remove spring control arm (1)	Observe installation position of ABC suspension strut (2a) or steel suspension strut (2b). The arrow points to the complete wheel.
	Check
11	Check supporting ball joint (11a) in wheel carrier (11) for damage	If faults are found: ↓ Replace supporting ball joint (11a) in wheel carrier (11).	AR35.20-P-0116-01CW
		Antifriction paste, rubber parts 2.5 kg, DBL 6867.00	*BR00.45-Z-1002-06A
		Removal and installation tool	Fig 7
		Insertion tool	Fig 3
12	Check rubber mount (5) of spring control arm (1) in rear axle carrier (4) for damage, replace if necessary	If faults are found: ↓ Remove the exhaust system (3).	AR49.10-P-7100RK
	Model 231 with engine 157, 276, 278		AR35.20-P-0114-01RK
	Model 231 with engine 279 ↓		AR49.10-P-7100RKC
	Detach rubber mount (5) from spring control arm (1).
		Extraction and insertion tool	Fig 2
		Press	Fig 4
		Extraction and insertion tool	Fig 6
		Removal and installation tool	Fig 5
13	Install in the reverse order
14	Fill and bleed ABC system	Model 231 with code 487 (Active Body Control (ABC))	AR32.50-P-0021SX
		Before opening the hydraulic system the area around the separation point should be cleaned thoroughly. Minute dirt particles in the hydraulic components can otherwise lead to malfunctions and a total failure of the hydraulic system.

FRONT AXLE TORSION BAR

Number	Designation		Model 231
BA32.20-P-1001-02H	Nut, torsion bar linkage to spring control arm	Nm	130

SUSPENSION STRUTS

Number	Designation			Model 231
BA32.25-P-1004-04N	Nut, suspension strut for rear axle to spring control arm	Stage 1	Nm	90
BA32.25-P-1004-04N	Nut, suspension strut for rear axle to spring control arm	Stage 2	∠°	90

ACTIVE BODY CONTROL, LINES

Number	Designation			Model 231 with code 487
BA32.50-P-1001-02B	Bleed screw on soldered fitting in hydraulic line	M10 x 1	Nm	20

SPRING CONTROL ARM

Number	Designation			Model 231
BA35.20-P-1001-01D	Self-locking nut, spring control arm to rear axle carrier	Stage 1	Nm	80
BA35.20-P-1001-01D	Self-locking nut, spring control arm to rear axle carrier	Stage 2	∠°	90

SPRING CONTROL ARM

Number	Designation			Model 231
BA35.20-P-1002-01D	Self-locking nut, spring control arm to wheel carrier	Stage 1	Nm	80
BA35.20-P-1002-01D	Self-locking nut, spring control arm to wheel carrier	Stage 2	∠°	90