Remove/install torsion bar on rear axle - AR32.20-P-0315GQ

MODEL 166 

Fig 1: Identifying Rear Axle Torsion Bar Remove/Install Components

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
1	Switch off ignition
2	Raise vehicle using drive-on lifting platform		AR00.60-P-1000GZ
3	Detach lines (1) from stabilizer bar (2)	MODEL 166 with CODE 468 (ACTIVE CURVE SYSTEM)
			AR32.00-P-0001-01A
		Screw/bolt, oil line to rotary actuator on front axle/rear axle	*BA32.34-P-1007-01A
		Assembly cleaner	*BR00.45-Z-1028-04A
		Record plug	Figure
4	Detach left and right torsion bar linkage (3) from torsion bar (2)	Carefully detach torsion bar linkage (3), torsion bar (2) is under tension.
		Nut, torsion bar linkage to torsion bar	*BA32.20-P-1003-04P
5	Unscrew bolts (2s) and remove stabilizer bar (2)	While working on the rear axle, care must be taken to ensure that the surface of aluminum components do not get any scratches, cracks and notches. 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!
		Bolt, stabilizer bar bracket to rear axle carrier	*BA32.20-P-1001-04P
	Check
6	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.
7	Install in the reverse order
8	Fill and bleed ACTIVE CURVE SYSTEM	MODEL 166 with CODE 468 (ACTIVE CURVE SYSTEM)
			AR32.34-P-0021GQ

REAR AXLE TORSION BAR

Number	Designation			MODEL 166 except CODE 468	MODEL 166 with CODE 468
BA32.20-P-1001-04P	Bolt, stabilizer bar bracket to rear axle carrier	Stage 1	Nm	100	100
		Stage 2	∠°	-	45

REAR AXLE TORSION BAR

Number	Designation				MODEL 166 except CODE 468	MODEL 166 with CODE 468
BA32.20-P-1003-04P	Nut, torsion bar linkage to torsion bar	Stage 1		Nm	100	100
		Stage 2	Loosen	∠°	180	180
		Stage 3		Nm	40	40
		Stage 4		∠°	80	80

ACTIVE ROLL STABILIZATION

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

Fig 2: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1028-04A	Assembly cleaner	-