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Home >> Mercedes Benz >> 2007 >> C350 Base, Automatic >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Rear Axle -- Testing & Repair -- 203 Chassis - 1 Of 2 >> Testing & Repair >> Remove/install rear axle center assembly - AR35.31-P-0520PF

Remove/install rear axle center assembly - AR35.31-P-0520PF

TRANSMISSION 722 in MODEL 203.018 /065 /218 /265 /718 rear axle center assembly dia. 210 Rear axle center assembly 210E 

Shown: Rear axle center assembly with 

210 mm dia. ring gear in model 203 

Fig 1: Identifying Rear Axle Center Assembly Remove/Install Components - Dia. 210
G04734733
MODIFICATION NOTES

20.3.04 Oil filler screw and oil drain screw changed on rear axle center assembly Phased in as of 19.01.04 BT35.31-P-0015-01A
    IMPORTANT The oil filler screw and oil drain screw must always be replaced with new screws after removal.
Clean new oil filler and drain screws as well as the tapped holes with a special cleaning agent and apply special sealing compound.
 
  Always replace oil filler screw after unscrewing rear axle center assembly.
The new oil filler screw as well as the tapped hole must be cleaned with a special cleaning spray and a special sealing compound must be applied to the oil filler screw.
IMPORTANT Only carry out the oil level check at room temperature. AR35.31-P-0520-03I 
REMOVINGINSTALLING Remove/Install    
DANGER Risk of death  cased by vehicle slipping or toppling off of the lifting platform. Align vehicle between the columns of the lifting platform and position the four support plates at the lifting platform support points specified by the vehicle manufacturer. AS00.00-Z-0010-01A
NOTES Notes on self-locking nuts and bolts   AH00.00-N-0001-01A
1 Lift/jack up vehicle   AR00.60-P-1000P
2 Remove exhaust shielding plate (105c).    
3 Unscrew bolts at propeller shaft intermediate bearing (106a). TORQUE SPECIFICATION Bolt, propeller shaft intermediate bearing to frame floor *BA41.40-P-1001-01A 
4 Detach rear propeller shaft (106) from rear axle center assembly (50). IMPORTANT The flexible coupling remains on the propeller shaft. AR41.10-P-0050-03EF
    IMPORTANTInstallation:  Connect rear propeller shaft to rear axle center assembly. AR41.10-P-0050-04EF
    TORQUE SPECIFICATION Self-locking nut, flexible coupling to rear axle center assembly *BA41.10-P-1002-01A 
5 Slacken flexible coupling fitting sleeves on flange.   AR41.10-P-0050-09DF
REFER TO SHOP-MADE TOOLS Drift for loosening fitting sleeves in flexible couplings.   WF58.50-P-4110-01A
6 Remove rear axle shaft (37) on left and right   AR35.30-P-0620PF 
7 Support rear axle center assembly. IMPORTANT Secure against falling.  
    SPECIAL TOOL Assembly attachment Figure
8 Remove bolts of rear center assembly mounting (50a). TORQUE SPECIFICATION Self-locking bolt, rear axle center assembly at rear to rear axle carrier *BA35.10-P-1004-01A 
9 Unscrew bolt of front center assembly mounting (53). IMPORTANTInstallation:  Attach front center assembly mounting. AR35.10-P-0050-01AF 
    TORQUE SPECIFICATION Self-locking nut, rear axle center assembly at front to rear axle carrier *BA35.10-P-1003-01A 
10 Drain rear axle center assembly. IMPORTANT On vehicles with plugged in rear axle shaft in the rear axle center assembly: ↓
In the process detach rear axle center assembly to the right from the left rear axle shaft. Ensure that no rear axle oil runs out when removing: ↓
 
    Extract rear axle shaft from rear axle center assembly, press in AR35.30-P-0620-02PF 
11 Install in the reverse order    
12 Install new breather TORQUE SPECIFICATION Tightening torque for screw-on breather. *BA35.31-P-1003-02B 
13 Check oil level in rear axle center assembly and correct if necessary IMPORTANT Mixing of old universal hypoid gear oil and the new FE hypoid gear oil should be avoided due to the better fuel economy. AR35.31-P-0520-03I 
    FLUID SPECIFICATION Filling capacity of rear axle center assembly *BF35.31-P-1001-01K 
    Cleaning spray, Loctite 7063 (150ml) *BR00.45-Z-1046-04A 
    Sealant, Omnifit 100H (50 g) *BR00.45-Z-1061-01A 
    TORQUE SPECIFICATION Oil filler screw, rear axle center assembly *BA35.31-P-1001-02B 
REFER TO COMPONENT MODIFICATIONS Oil filler screw and oil drain screw changed on rear axle center assembly Phased in as of 19.01.04 BT35.31-P-0015-01A
TORQUE SPECIFICATION PROPELLER SHAFT

Number Designation Model 203
BA41.10-P-1002-01A Self-locking nut, flexible coupling to rear propeller shaft or rear axle center assembly. M10 Nm 40
M12 Nm 60
TORQUE SPECIFICATION PROPELLER SHAFT INTERMEDIATE BEARING

Number Designation Model 203
BA41.40-P-1001-01A Bolt, propeller shaft intermediate bearing to frame floor Self-tapping screw Nm -
Bolt with washer Nm -
Bolt with collar and self-centering tip Nm 30
Bolt with collar and without self-centering tip Nm -
TORQUE SPECIFICATION REAR AXLE CARRIER

Number Designation Model 203
BA35.10-P-1003-01A Self-locking nut, rear axle center assembly at front to rear axle carrier Nm 45
BA35.10-P-1004-01A Self-locking bolt, rear axle center assembly at rear to rear axle carrier Nm 110
TORQUE SPECIFICATION REAR AXLE CENTER ASSEMBLY HOUSING

Number Designation Model 203.018/065/218/265/718
BA35.31-P-1001-02B Oil filler screw, rear axle center assembly Nm 50
BA35.31-P-1002-02B Oil drain screw, rear axle center assembly Nm 50
BA35.31-P-1003-02B Breather, rear axle center assembly Nm 25
FLUID SPECIFICATION REAR AXLE CENTER ASSEMBLY

Number Designation Model 203.018/065/218/265/718
BF35.31-P-1001-01K Filling capacity Rear axle center assembly Liters 1.6
Specifications for Operating Fluids Sheet BB00.40-P-0235-07A
Fig 2: Identifying Assembly Attachment (140 589 01 62 00)
G04734734
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1061-01A Sealant, Omnifit 100H (50 g) -
BR00.45-Z-1046-04A Cleaning spray, Loctite 7063 (150ml) A 001 986 71 71 10