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Remove/Install Rear Axle Wheel Carrier - AR35.20-P-0115MFA

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Model 118, 177, 243, 247 

with code U55 (Multi-link axle) 

MODIFICATION NOTES

12.07.2022 Remove nut (13), pull out screw (14), detach lower spring link (15) from wheel carrier (1), and guide out rear axle shaft. Operation step 11.1.  
Fig 1: Rear Axle Wheel Carrier Components Location - Model 118 With Code U55 (Shown On Model 177.0 Except Code M005)
G16049132Courtesy of MERCEDES-BENZ USA

Shown on model 177.0 except code M005 (Vehicles with 4MATIC/all-wheel drive) 

G16049133Courtesy of MERCEDES-BENZ USA

Shown on model 177.0 except code M005 (Vehicles with 4MATIC/all-wheel drive) 

DANGER 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
WARNING Risk of injury  . Moving parts can pinch, crush or, in extreme cases even sever extremities. No parts of the body or limbs should be within the operating area of mechanical components when moving components. AS00.00-Z-0009-01A
CAUTION Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.
AS00.00-Z-0017-01A
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
Notice  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
  Notes on repair work on suspension components   AH00.00-P-0100-01A
REMOVINGINSTALLING Remove/install     
1 Remove screw connecting rear axle shaft to wheel bearing. Model 118, 177, 243, 247 with code M005 (Vehicles with 4MATIC/all-wheel drive)
with code U55 (Multi-link axle)
IMPORTANT Installation: Replace bolt.
TORQUE SPECIFICATION Bolt, rear axle shaft to wheel bearing
*BA35.30-P-1001-01P 
2 Remove left rear or right rear brake disk and fasten left or right brake caliper to vehicle free of tension. NOTES
Do not twist the brake hose, and make sure that it is routed correctly.
Otherwise, there will be damage to the brake hose.
NOTES
Do not stretch, crush or kink the brake hose.
Otherwise, there will be damage to the brake hose.
IMPORTANT Do not disconnect the brake hose from the brake caliper.
AR42.10-P-0220MFA
3 Unclip cover (16) from spring link (15) and remove. IMPORTANT Installation: Make sure that the cover (16) is seated correctly.  
4 Remove left rear axle rpm sensor (L6/3) or right rear axle rpm sensor (L6/4).   AR42.30-P-0716MFA
5 Unclip electrical wiring harness with bracket (2) from wheel carrier (1) using a suitable tool and place to one side. NOTES
Do not stretch, crush or kink the wiring harness.
This will result in damage to the wiring harness and can impair its function.
 
6 Remove rear axle shaft flange.   AR35.20-P-0130MFA 
INSPECT Check     
7 Check brake cover plate (17) for damage. If there is a problem,

Replace brake cover plate (17).
TORQUE SPECIFICATION Model 243 with code U55 (Multi-link axle)
Bolt, brake cover plate to wheel carrier
*BA42.10-P-1004-06K 
8 Remove nut (3), pull-out screw (4) and remove camber strut (5) from wheel carrier (1). TORQUE SPECIFICATION Self-locking nut, camber strut to wheel carrier *BA35.20-P-1002-02I 
9 Remove nuts (6, 9), pull-out screws (7) and remove trailing arm (8) from wheel carrier (1). TORQUE SPECIFICATION Model 118, 177, 247 with code U55 (Multi-link axle)
Nut, torsion bar linkage to wheel carrier
*BA32.35-P-1003-03A 
    TORQUE SPECIFICATION Bolt, trailing arm to wheel carrier *BA35.15-P-1001-02H 
10 Remove nut (10), pull-out screw (11) and remove tie rod (12) from wheel carrier (1). TORQUE SPECIFICATION Nut, tie rod to wheel carrier *BA35.20-P-1002-04N 
11.1 Remove nut (13), pull out screw (14), detach lower spring link (15) from wheel carrier (1), and guide out rear axle shaft. Model 118, 177, 243, 247 with code M005 (Vehicles with 4MATIC/all-wheel drive)
with code U55 (Multi-link axle)
TORQUE SPECIFICATION Self-locking nut, spring control arm to
wheel carrier
*BA35.20-P-1002-01D 
11.2 Remove nut (13), pull-out screw (14) and remove lower spring link (15) from wheel carrier (1). Model 118, 177, 243, 247 with code U55 (Multi-link axle) except code M005 (Vehicles with 4MATIC/
all-wheel drive)
TORQUE SPECIFICATION Self-locking nut, spring control arm to
wheel carrier
*BA35.20-P-1002-01D 
12 Install in the reverse order.    
  Wheel alignment check     
13 Perform chassis alignment.   AR40.20-P-0200MFA
REAR AXLE STABILIZER BAR

Number Designation Model 118, 177, 247
BA32.35-P-1003-03A Nut, torsion bar linkage to wheel carrier M10 Stage 1 Nm 45
Stage 2 ∠° 45
REAR AXLE TRAILING ARM

Number Designation Model 243 Model 118, 177, 247
BA35.15-P-1001-02H Bolt, trailing arm to wheel carrier M10 Stage 1 Nm 40 40
Stage 2 ∠° 45 45
SPRING LINK

Number Designation Model 118, 177, 243, 247
BA35.20-P-1002-01D Self-locking nut, spring control arm to wheel carrier Stage 1 Nm 50
Stage 2 ∠° 90
CAMBER STRUT

Number Designation Model 118, 177, 243, 247
BA35.20-P-1002-02I Self-locking nut, camber strut to wheel carrier M12 Stage 1 Nm 50
Stage 2 ∠° 90
TIE ROD

Number Designation Model 243 Model 118, 177, 247
BA35.20-P-1002-04N Nut, tie rod to wheel carrier Stage 1 Nm 50 50
Stage 2 ∠° 90 90
REAR AXLE SHAFT

Number Designation Model 118, 177, 243, 247
BA35.30-P-1001-01P Bolt, rear axle shaft to wheel bearing M14 Stage 1 Nm 100
Stage 2 ∠° 45
BRAKE DISKS, BRAKE COVER PLATE

Number Designation Model 243
BA42.10-P-1004-06K Bolt, brake cover plate to wheel carrier M6 Nm 20