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Home >> Mercedes Benz >> 2021 >> S500 >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Rear Axle -- 223 Chassis >> Testing & Repair >> Remove/Install Rear Axle Differential >> Remove/Install Rear Axle Differential - AR35.31-P-0522S

Remove/Install Rear Axle Differential - AR35.31-P-0522S

Model 223 with engine 176, 256, 279, 656 

except code Z07 (B7 armoring on special protection version) 

MODIFICATION NOTES

02.11.2023 Front cross bridge to rear axle carrier   BA35.10-P-1004-01R
G16191216Courtesy of MERCEDES-BENZ USA

Shown except code 216 (Rear axle steering with large steering angle), except code 201 (Rear axle steering) 

G16191217Courtesy of MERCEDES-BENZ USA
CAUTION Risk of injury  to skin and eyes due to handling of transmission oil. Health risk caused by swallowing transmission oil Wear protective gloves, protective clothing and safety glasses.
Do not pour transmission oil into beverage bottles.
AS00.40-Z-0001-01A
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
  Notes on repair work on suspension components   AH00.00-P-0100-01A
REMOVINGINSTALLING Remove/install     
1 Shift transmission to "N" position.    
2 Raise vehicle using vehicle lift and secure in place.   AR00.60-P-1006A
3.1 Remove rear muffler. Model 223 with engine 656
except code Z07 (B7 armoring on special protection version)
AR49.10-P-4952S
3.2 Remove rear mufflers. Model 223 with engine 176, 256, 279 except code Z07 (B7 armoring on special protection version)
Remove/install left rear muffler Model 223 with engine 176, 256
except code Z07 (B7 armoring on special protection version)
AR49.10-P-4824S
    Remove/install right rear muffler Model 223 with engine 176, 256
except code Z07 (B7 armoring on special protection version)
AR49.10-P-4825S
    Remove/install left rear muffler Model 223 with engine 279
except code Z07 (B7 armoring on special protection version)
AR49.10-P-4824SVZ
    Remove/install right rear muffler Model 223 with
engine 279
except code Z07 (B7 armoring on special protection version)
AR49.10-P-4825SVZ
4 Detach propeller shaft (7) from joint flange on rear axle differential (50). Model 223 with engine 176, 256
except code Z07 (B7 armoring on special protection version)
AR41.10-P-0050S
    Model 223 with engine 656
except code Z07 (B7 armoring on special protection version)
AR41.10-P-0050SB
    Model 223 with engine 279
except code Z07 (B7 armoring on special protection version)
AR41.10-P-0050SVZ
5 Remove right rear axle shaft (37).   AR35.30-P-0621S 
6 Remove left cover (9).    
7.1 Lower the steering gear of the rear axle steering until screw (3) is accessible and secure the steering gear to prevent it from falling down. Model 223 with engine 176, 256, 279, 656
with code 201 (Rear axle steering)
except code Z07 (B7 armoring on special protection version)
Model 223 with engine 176, 256, 279, 656
with code 216 (Rear axle steering with large angle)
except code Z07 (B7 armoring on special protection version)
AR46.80-P-4000S
7.2 Remove screws (2) and lower tie rod adapter (1) until screw (3) is accessible. Model 223 with engine 176, 256, 279, 656
except code 201 (Rear axle steering)
except code 216 (Rear axle steering with large angle)
except code Z07 (B7 armoring on special protection version)
TORQUE SPECIFICATION Model 223 with engine 176, 256, 279, 656
except code 201 (Rear axle steering)
except code 216 (Rear axle steering with large angle)
except code Z07 (B7 armoring on special protection version)
Screw, tie rod adaptor to top left/right of rear axle carrier
*BA35.20-P-1004-04P 
8 Prop up rear axle differential (50) and lash down securely.    
REFER TO SPECIAL TOOLS 000 588 24 62 00 Major assembly mount   WS01.00-P-0253B
REFER TO SPECIAL TOOLS 000 588 23 62 00 Mounting plate   WS26.00-P-0415B
9 Remove bolt (3). TORQUE SPECIFICATION Bolt, rear axle differential to rear transverse bridge *BA35.10-P-1011-01R 
10 Remove nuts (8) and remove eccentric disks (11). TORQUE SPECIFICATION Front cross bridge to rear axle carrier *BA35.10-P-1004-01R 
11 Secure left rear axle shaft (37) to prevent it from falling.    
12 Pry left rear axle shaft (37) out of rear axle differential (50).   AR35.30-P-0621S 
13 Lower rear axle differential (50) with cross bridge (6) and remove downwards and to the right.    
REFER TO SPECIAL TOOLS 000 588 24 62 00 Major assembly mount   WS01.00-P-0253B
REFER TO SPECIAL TOOLS 000 588 23 62 00 Mounting plate IMPORTANT Aid of helper required. WS26.00-P-0415B
14 Remove screws (5) and remove cross bridge (6) from rear axle differential (50). If necessary.
TORQUE SPECIFICATION Bolt, rear axle differential to front cross member
*BA35.10-P-1006-01R 
15 Install in the reverse order.    
16 Check oil level in rear axle differential (50) and correct if necessary.   AR35.31-P-0520-08S 
REFER TO CAPACITIES & SPECIFICATIONS Universal hypoid gear oils (specification 235.7)   BB00.40-P-0235-07A
REFER TO BASIC KNOWLEDGE Differentiating characteristics of aluminum differential housings   GF35.31-P-0002-01A 
    IMPORTANT Observe the differentiating features to determine the oil filling capacity.
TORQUE SPECIFICATION Filling screw on rear axle differential
*BA35.31-P-1004-02I 
    Loctite 7063 (400 ml) cleaning spray *BR00.45-Z-1046-04A 
    Sealant, Omnifit 100H (50 g) *BR00.45-Z-1061-01A 
17 Check rear axle differential (50) for leak tightness.    
18 Lower and release vehicle with vehicle lift.   AR00.60-P-1006A
19 Perform wheel alignment measurement.   AR40.20-P-0200S
REAR AXLE CARRIER

Number Designation Model 223 except code Z07 (B7 armoring on special protection version)
BA35.10-P-1004-01R Front cross bridge to rear axle carrier Screw M10 Stage 1 Nm 40
Stage 2 ∠° 180
M14 Nm 170
Nut Stage 1 Nm 40
Stage 2 ∠° 180
REAR AXLE CARRIER

Number Designation Model 223 except code Z07 (B7 armoring on special protection version)
BA35.10-P-1006-01R Bolt, rear axle differential to front cross member Stage 1 Nm 90
Stage 2 ∠° 90
REAR AXLE CARRIER

Number Designation Model 223 except code Z07 (B7 armoring on special protection version)
BA35.10-P-1011-01R Bolt, rear axle differential to rear transverse bridge Stage 1 Nm 120
Stage 2 ∠° 90
TIE ROD

Number Designation Model 223 except code Z07
BA35.20-P-1004-04P Screw, tie rod adaptor to top left/right of rear axle carrier Stage 1 Nm 50
Stage 2 ∠° 90
REAR AXLE DIFFERENTIAL HOUSING

Number Designation Model 223
BA35.31-P-1004-02I Filling screw on rear axle differential Nm 50
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1046-04A Loctite 7063 (400 ml) cleaning spray A 001 986 71 71 09
BR00.45-Z-1061-01A Sealant, Omnifit 100H (50 g) A 002 989 23 71