Remove/install torsion bar on rear axle

AR32.20-P-0315MFA

Remove/install torsion bar on rear axle

08.01.2020

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.

Shown on right side of vehicle on model 177.0

1

Torsion bar

3

Bolts

2

Nut

Shown on model 177.0 with engine 139

8

Bolts

9

Struts

10

Bolts

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

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