Remove/Install Stabilizer Bar On Front Axle - AR32.20-P-0300GQ

Model 166, 292 with code 468 (ACTIVE CURVE SYSTEM) 

Fig 1: Stabilizer/Torsion Bar On Front Axle Components Location - Model 166 With Code 468

Courtesy of MERCEDES-BENZ USA

	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
	Risk of injury  caused by pinching or crushing when working on springs or spring bodies that are under tension	Use only approved tensioning devices; additionally screen off hazardous area if necessary. Check special tools for damage and proper operation (visual inspection). Wear protective gloves.	AS00.00-Z-0001-01A
	Notes on active roll stabilization		AH32.34-P-0001-01A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
	Remove/install
	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
1	Secure vehicle on the lifting platform and raise		AR00.60-P-1000GZ
2.1	Remove complete wheel from front axle	Model 292
			AR40.10-P-1100GQC
		Only when replacing the torsion bar (2).
2.2	Remove complete wheel from front axle	Model 166
			AP40.10-P-4050EW
		Only when replacing the torsion bar (2).
3	Remove center underfloor paneling		AR61.30-P-1001GQ
		Install the underfloor paneling only after the leak test.
4	Detach lines (1) from stabilizer bar (2)		AR32.00-P-0001-01A
		Screw/bolt, oil line to rotary actuator on front axle/rear axle	*BA32.34-P-1007-01A
5	Seal connection fittings on torsion bar (2) and lines (1) using stop plugs	The connection fittings on the torsion bar (2) and lines (1) must be sealed using stop plugs. Penetrating dirt and moisture can otherwise damage the components.
		Record plug	Fig 2
6	Detach left and right torsion bar linkage (3) from torsion bar (2)	Carefully detach torsion bar linkage (3), torsion bar (2) is under tension.
		The left and right torsion bar linkage (3) is to be replaced by new parts, if the torsion bar (2) was replaced.
		Nut, link rod to steering knuckle	*BA32.20-P-1003-02Q
		Screw/bolt, link rod to torsion bar	*BA32.20-P-1002-02Q
7	Remove screws/bolts (2s) and take off torsion bar (2)	When working on the front-end assembly, be careful not to scratch, mark or notch the surfaces of aluminum parts. Otherwise the service life of the of the parts will be reduced.
		Only tighten nuts and bolts of suspension components when vehicle is in a ready-to-drive condition.
		Screw/bolt, torsion bar bracket/torsion bar to front axle carrier	*BA32.20-P-1001-02Q
8	Install in the reverse order
	Check
9	Check torsion bar linkage (3) and elastomer bearing on torsion bar (2)	Check torsion bar linkage (3) and elastomer bearing for wear and damage, replace if necessary. Check torsion bar linkage (3) and elastomer bearing for wear and damage ↓ Replace if necessary.
	Initial startup
10	Fill and bleed ACTIVE CURVE SYSTEM		AR32.34-P-0021GQ

FRONT AXLE TORSION BAR

Number	Designation			Model 166 with code 468 (ACTIVE CURVE SYSTEM)	Model 292 with code 468 (ACTIVE CURVE SYSTEM)
BA32.20-P-1001-02Q	Screw/bolt, torsion bar bracket/torsion bar to front axle carrier	Stage 1	Nm	90	90
		Stage 2	∠°	45	45

FRONT AXLE TORSION BAR

Number	Designation			Model 166 with code 468 (ACTIVE CURVE SYSTEM)	Model 292 with code 468 (ACTIVE CURVE SYSTEM)
BA32.20-P-1002-02Q	Screw/bolt, link rod to torsion bar	Stage 1	Nm	80	80
		Stage 2	∠°	90	90

FRONT AXLE TORSION BAR

Number	Designation		Model 166 with code 468 (ACTIVE CURVE SYSTEM)	Model 292 with code 468 (ACTIVE CURVE SYSTEM)
BA32.20-P-1003-02Q	Nut, link rod to steering knuckle	Nm	65	65

ACTIVE ROLL STABILIZATION

Number	Designation		Model 166	Model 292
BA32.34-P-1007-01A	Screw/bolt, oil line to rotary actuator on front axle/rear axle	Nm	20	20

Fig 2: Identifying Set Of Stop Plugs (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA