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Home >> Mercedes Benz >> 2005 >> C55 >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Rear Axle -- Testing & Repair -- 203 Chassis - 1 Of 2 >> Testing & Repair >> Remove/install radial sealing ring of rear axle shaft at rear axle housing - AR35.31-P-0541PI

Remove/install radial sealing ring of rear axle shaft at rear axle housing - AR35.31-P-0541PI

MODEL 203.040 /042 /043 /046 /052 /240 /242 /243 /246 /252 /730 /740 /742 /743 /746 Rear axle differential dia. 187 

MODEL 203.054 /056 /254 /256 /756, 209.354 /356 /454 /456 Rear axle differential dia. 200 

Fig 1: Identifying Radial Sealing Ring Of Rear Axle Shaft At Rear Axle Housing Remove/Install Components - Dia. 187 And 200
G04734785
REMOVING Removing     
DANGER Risk of death  caused 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 each respective rear axle shaft (37) NOTES While working on the rear axle care must be taken to ensure that the surface of aluminum components do not get any scratches, cracks and notches. Otherwise the service life of the of the parts will be reduced. AR35.30-P-0620PI 
3 Use a suitable tool to lever radial sealing ring (32) out of rear axle differential (50) NOTES To ensure that the radial sealing ring (32) does not leak and fits correctly, take care not to damage the seat surface of the radial sealing ring in the rear axle differential (50).  
INSTALLING Install     
4 Press new radial sealing ring (32) into rear axle differential (50) using drift (049b) IMPORTANT Coat lip at radial sealing ring (32) with universal hypoid gear oil.  
REFER TO CAPACITIES & SPECIFICATIONS Universal hypoid gear oil (SAE 85 W-90) Sheet 235.7 BB00.40-P-0235-07A
    IMPORTANT Press the radial sealing ring (32) evenly into the rear axle differential (50).
IMPORTANT Make sure that the radial sealing ring (32) is seated correctly.
 
    SPECIAL TOOL Drift Figure
5 Install new circlip (37o) on inner splined shaft of rear axle shaft (37)    
6 Install rear axle shaft (37). NOTES While working on the rear axle care must be taken to ensure that the surface of aluminum components do not get any scratches, cracks and notches. Otherwise the service life of the of the parts will be reduced. AR35.30-P-0620PI 
INSPECT Checking     
7 Check oil level in rear axle differential (50) and correct if necessary IMPORTANT In the interest of better fuel economy, avoid mixing old universal hypoid gear oil with new FE hypoid gear oil. AR35.31-P-0520-03I 
REFER TO CAPACITIES & SPECIFICATIONS Universal hypoid gear oils (SAE 85 W-90) Sheet 235.7 BB00.40-P-0235-07A
    Model 203.040/042/043/046/240/242/243/246/740/742/743/746 with rear axle differential 187FE up to production period 18.1.04
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REFER TO COMPONENT MODIFICATIONS Oil filler/drain screw on rear axle differential modified up to 18.1.04 BT35.31-P-0015-01A
    TORQUE SPECIFICATION Oil filler screw for rear axle differential *BA35.31-P-1001-02B 
    FLUID SPECIFICATION Filling capacity of rear axle differential *BF35.31-P-1001-01K 
    SPECIAL TOOL Torque wrench Figure
    Loctite 7063 cleaning spray (150 ml) *BR00.45-Z-1046-04A 
    Omnifit sealing compound 100H (50 g) *BR00.45-Z-1061-01A 
8 Check rear axle differential (50) for leaks IMPORTANT Carry out visual inspection.  
TORQUE SPECIFICATION REAR AXLE DIFFERENTIAL HOUSING

Number Designation Model 203.020/040/052/054/056/220/240/243/252/254/256/730/743/756
BA35.31-P-1001-02B Oil filler screw, rear axle differential Nm 50
TORQUE SPECIFICATION REAR AXLE DIFFERENTIAL HOUSING

Number Designation Model 203.042/043/046/081/084/087/092/242/246/281/284/287/292/740/742/746, Model 203.004/061/204/261 as of 09/2002
BA35.31-P-1001-02B Oil filler screw, rear axle differential Nm 50
TORQUE SPECIFICATION REAR AXLE DIFFERENTIAL HOUSING

Number Designation Model 209.308/320/354/355/356/357/420/454/455/456/457
BA35.31-P-1001-02B Oil filler screw, rear axle differential Nm 50
FLUID SPECIFICATION REAR AXLE DIFFERENTIAL

Number Designation Model 203.006/008/054/056/064/206/208/254/256/264/706/708/756/764, Model 203.004/204 with taxi version code 450, up to 08/2002, Model 203.007/207 with taxi version code 450 Model 203.040/042/043/046/052/081/084/087/092/240/242/243/246/252/281/284/287/292/707/730/740/742/743/746, Model 203.004/061/204/261, as of 09/2002, Model 203.007/207 without taxi version
BF35.31-P-1001-01K Filling capacity Rear axle differential Liters 1.1 1.0
Specifications for Operating Fluids Sheet BB00.40-P-0235-07A BB00.40-P-0235-07A
FLUID SPECIFICATION REAR AXLE DIFFERENTIAL

Number Designation Model 209.308/354/356/365/454/456/465
BF35.31-P-1001-01K Filling capacity Rear axle differential Liters 1.1
Specifications for Operating Fluids Sheet BB00.40-P-0235-07A
Fig 2: Identifying Drift (211 589 00 15 00)
G04734786
Fig 3: Identifying Torque Wrench (001 589 66 21 00)
G04734787
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