Remove/Install Torsion Bar On Rear Axle - AR32.20-P-0315MFA

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Model 118, 177, 247

with code U55 (Multi-link axle)

MODIFICATION NOTES

03.12.2019	Remove struts (9).	Operation steps 2.1, 2.2 and 3.
03.12.2019	Replace bolts (3).	Operation step 6.

Fig 1: Torsion Bar On Rear Axle Components Location - Model 118 With Code U55 (Shown Right Side On Model 177.0)

Courtesy of MERCEDES-BENZ USA

Shown on right side of vehicle on model 177.0

Shown on model 177.0 with engine 139

Courtesy of MERCEDES-BENZ USA

Notice	Notes on threaded connections fastened using a tightening angle-based tightening process		AH00.00-P-0020-01A
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
	Notes on repair work on suspension components		AH00.00-P-0100-01A
	Remove/install
1	Remove trim from rear axle carrier.	Model 118, 177, 247 with engine 260 with code U55 (Multi-link axle) except code M016 (Uprated engine) Model 118, 247 with engine 282, 608, 654 with code U55 (Multi-link axle) Model 177 with engine 282, 654 with code U55 (Multi-link axle)	AR61.30-P-0050MFA
2	Lower rear axle differential with mounted axle shafts.	Model 118, 177, 247.7 with engine 139 with code M005 (Vehicles with 4MATIC/all-wheel drive) with code U55 (Multi-link axle)	AR35.31-P-0522MFG
		Model 118, 177, 247 with engine 260, 282, 654 with code M005 (Vehicles with 4MATIC/all-wheel drive) with code U55 (Multi-link axle)	AR35.31-P-0522MFC
3.1	Remove screws (8) from struts (9).	Model 118, 177 with engine 139 with code U55 (Multi-link axle) Screw/nut, strut to mounting console	*BA61.10-P-1004-01N
3.2	Remove nuts from struts (9).	Model 247.7 with engine 139 with code U55 (Multi-link axle) Screw/nut, strut to mounting console	*BA61.10-P-1004-01N
4	Unscrew screws (10) and remove struts (9).	Model 118, 177, 247.7 with engine 139 with code U55 (Multi-link axle) Screw, strut to rear axle carrier	*BA61.10-P-1005-01N
5	Remove nut (2) from torsion bar (1) on left and right.	Install new nuts (2). When loosening the nuts (2), counterhold the threads of the torsion bar linkage. Nut, torsion bar linkage to stabilizer bar	*BA32.35-P-1002-03A
6	Unscrew screws (3) on left and right.	Replace bolts (3). Screw/nut, stabilizer to rear axle carrier	*BA32.35-P-1001-03A
7	Remove torsion bar (1).
8	Install in the reverse order.

REAR AXLE STABILIZER BAR

Number	Designation					Model 118, 177, 247
BA32.35-P-1001-03A	Screw/nut, stabilizer to rear axle carrier	M8	Stage 1		Nm	30
			Stage 2	Loosen	∠°	180
			Stage 3		Nm	18
			Stage 4		∠°	45

REAR AXLE STABILIZER BAR

Number	Designation			Model 118, 177, 247
BA32.35-P-1002-03A	Nut, torsion bar linkage to stabilizer bar	M10	Nm	80

FRAME FLOOR ASSEMBLY

Number	Designation			Model 118, 177, 247
BA61.10-P-1004-01N	Screw/nut, strut to mounting console	M10	Nm	45

FRAME FLOOR ASSEMBLY

Number	Designation			Model 118, 177, 247
BA61.10-P-1005-01N	Screw, strut to rear axle carrier	M10	Nm	45