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Home >> Mercedes Benz >> 2001 >> SLK320 Automatic >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Rear Axle -- Testing & Repair -- 170 Chassis - 2 Of 2 >> Testing & Repair >> Replace radial sealing ring on connecting flange of rear axle shaft - AR35.31-P-0540 >> Replace radial sealing ring on connecting flange of rear axle shaft - AR35.31-P-0540B >> Notes

Replace radial sealing ring on connecting flange of rear axle shaft - AR35.31-P-0540B: Notes

Rear axle differential dia. 168 in model 210.003 /004 except CODE (450) Taxi version 

Rear axle differential dia. 185 in model 210.010 /020 /035 /037 /048 /061 /062 /210 /235 /237 /248 /261 /262 /610 

Rear axle differential dia. 185 in model 210.003 /004 with CODE (450) Taxi version 

Rear axle differential dia. 185 in model 210.007 except CODE (450) Taxi version 

Rear axle differential dia. 198 in model 170.465 /466, 202.033 /093 /133 /193, 203.006, 208.365 /370 /465 /470, 210.006 /015 /017 /025 /045 /053 /055 /063 /065 /08 /206 /215 /217 /225 /245 /263 /265 /28 /606 /663 

Rear axle differential dia. 198 in model 202.134 /194, 203.004, 210.007 with CODE (450) Taxi version 

Rear axle differential dia. 210 in model 210.070 up to 31.1.98, 210.072, 210.074 /270 up to 31.1.98, 210.272, 210.274 up to 31.1.98, 210.617 

Rear axle differential dia. 210 in model 203.016, 208.374, 209.316 /375 /376 /475 /476, 210.016 /026, 210.070 /074 as of 1.2.98, 210.216 /226, 210.270 /274 as of 1.2.98, 210.616 

Rear axle differential 210E 

Rear axle differential dia. 198 in model 202.085, 209.365 /465 with TRANSMISSION 717 

Rear axle differential dia. 187 in MODELS 209.341 /342 /343 /361 /441 /442 /461 

Fig 1: Identifying Radial Sealing Ring On Connecting Flange Of Rear Axle Shaft Remove/Install Components
G04636380
REMOVINGINSTALLING Remove/install     
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
1 Raise vehicle    
2 Drain oil from rear axle differential (50) Model 170, 202, 208, 210 AR35.31-P-0520-06A 
    Cleaning spray, Loctite 7063 (150ml) *BR00.45-Z-1046-04A 
    Sealant, Omnifit 100H (50 g) *BR00.45-Z-1061-01A 
    TORQUE SPECIFICATION Oil drain screw *BA35.31-P-1003-02A 
    Model 203, 209 AR35.31-P-0520-06I
    Cleaning spray, Loctite 7063 (150ml) *BR00.45-Z-1046-04A 
    Sealant, Omnifit 100H (50 g) *BR00.45-Z-1061-01A 
    TORQUE SPECIFICATION Oil drain screw *BA35.31-P-1002-02B 
REFER TO COMPONENT MODIFICATIONS Oil filler/drain screw on rear axle differential modified Phased in as of 19.01.04 BT35.31-P-0015-01A
3 Remove rear axle differential (50) Model 170, 202, 208 AR35.31-P-0520D 
    Model 210 AR35.31-P-0520B
    Model 203, 209 AR35.31-P-0520P
4 Clamp rear axle differential (50) in assembly stand   AR35.31-P-0540-06B 
    SPECIAL TOOL Assembly stand Figure
    SPECIAL TOOL Assembly stand Figure
    SPECIAL TOOL Supports (2 ea.) Figure
    SPECIAL TOOL Supports Figure
5.1 Remove end cover (54) with machined sealing surface IMPORTANTInstallation:  Fit end cover: ↓  
    Rear axle differential dia. 168 mm in model 210 up to 07.05.00 AR35.31-P-0550-28B
    Sealant *BR00.45-Z-1010-01A 
    TORQUE SPECIFICATION Bolt + washer or flange bolt *BA35.31-P-1001-02A 
    Rear axle differential ø 185 mm in model 210 up to 07.05.00 AR35.31-P-0550-28C 
    Sealant *BR00.45-Z-1010-01A 
    TORQUE SPECIFICATION Bolt + washer or flange bolt *BA35.31-P-1001-02A 
    Rear axle differential dia. 198 mm in model 170, 202, 208, 210 up to 22.05.00 AR35.31-P-0550-28A
    Sealant *BR00.45-Z-1010-01A 
    TORQUE SPECIFICATION Bolt + washer or flange bolt *BA35.31-P-1001-02A 
    Rear axle differential dia. 210 mm in rear axle differential 210E in model 210 up to 14.05.00 AR35.31-P-0550-28E
    Sealant *BR00.45-Z-1010-01A 
    TORQUE SPECIFICATION Bolt + washer or flange bolt *BA35.31-P-1001-02A 
REFER TO COMPONENT MODIFICATIONS Rear axle differential end cover with nonmachined sealing surface   BT35.31-P-0014-01A
5.2 Remove end cover (54) with non-machined sealing surface IMPORTANTInstallation:  Fit end cover: ↓  
    Rear axle differential dia. 168 mm in model 210 as of 08.05.00 AR35.31-P-0550-28BA
    SPECIAL TOOL Sealant gun Fig 6
    Sealant *BR00.45-Z-1013-01A 
    TORQUE SPECIFICATION Bolt + washer or flange bolt *BA35.31-P-1001-02A 
    Rear axle differential ø 185 mm in model 210 as of 08.05.00 AR35.31-P-0550-28CA 
    SPECIAL TOOL Sealant gun Fig 6
    Sealant *BR00.45-Z-1013-01A 
    TORQUE SPECIFICATION Bolt + washer or flange bolt *BA35.31-P-1001-02A 
    Rear axle differential dia. 198 mm in model 170, 203 and in model 202, 208, 209, 210 as of 23.05.00 AR35.31-P-0550-28AA 
    SPECIAL TOOL Sealant gun Fig 6
    Sealant
Bolt with captive washer or flange bolt:		 *BR00.45-Z-1013-01A 
    TORQUE SPECIFICATION Model 170, 202, 208, 210 *BA35.31-P-1001-02A 
    TORQUE SPECIFICATION Model 203, 209 *BA35.31-P-1004-02B 
    Rear axle differential dia. 210 mm in rear axle differential 210E in model 208, 203, 209 and in model 210 as of 15.05.00 AR35.31-P-0550-28EA
    SPECIAL TOOL Sealant gun Fig 6
    Sealant
Bolt with captive washer or flange bolt:		 *BR00.45-Z-1013-01A 
    TORQUE SPECIFICATION Model 208, 210 *BA35.31-P-1001-02A 
    TORQUE SPECIFICATION Model 203, 209 *BA35.31-P-1004-02B 
6 Detach circlip (30) Replace circlip. AR35.31-P-0540-01A 
    SPECIAL TOOL Removal and installation tool Figure
7 Pull out connecting flange (33) IMPORTANT Check contact surface for the radial sealing ring (32 or 32a) on the connecting flange, replace connecting flange if galling is severe.
IMPORTANTInstallation:  Check, adjust axial play of connecting flange: ↓		  
    Rear axle differential dia. 168 mm AR35.31-P-0540-02D 
    Axial play between connecting flange and differential housing *BE35.31-P-1001-05A 
    Rear axle differential dia. 185 mm AR35.31-P-0540-02E 
    Axial play between connecting flange and differential housing *BE35.31-P-1001-05A 
REFER TO COMPONENT MODIFICATIONS Radial seal on side of rear axle housing and connecting flange modified As of 01.04.98 on model 210.003/004 taxi version and model 210.007 /010 /020 /035 /037 /061 /210 /235 /237 /261 /610. BT35.31-P-0013-01A
    Rear axle differential dia. 198 mm, Rear axle differential dia. 210 mm in rear axle differential 210E (without side bearing caps) AR35.31-P-0540-02C 
    Axial play between connecting flange and differential housing *BE35.31-P-1001-05A 
REFER TO COMPONENT MODIFICATIONS Radial seal on side of rear axle housing and connecting flange modified As of 01.10.01 with model 170, 202, 203, 208, 209, 210 with rear axle differential dia. 198 mm and with model 203, 208, 210 with rear axle differential dia. 210 mm in rear axle differential 210E BT35.31-P-0013-01B
    Rear axle differential dia. 210 mm (with side bearing caps) AR35.31-P-0540-02A
    Axial play between connecting flange and differential housing *BE35.31-P-1001-05A 
8 Press protection ring off connecting flange (33) As of 01.10.01 with model 170, 202, 203, 208, 209, 210 with rear axle differential dia. 198 mm and with model 203, 208, 210 with rear axle differential dia. 210 mm in rear axle differential 210E
IMPORTANT If a new radial sealing ring (32 or 32a) is installed for the first time, a new protective ring must be installed.
This is the only way to ensure a proper seal.		 AR35.30-P-0620-05R 
    SPECIAL TOOL Drift Figure
9 Pry off radial sealing ring (32 or 32a) IMPORTANTInstallation:  Replace radial sealing ring and coat the lip with universal hypoid transmission oil.  
REFER TO CAPACITIES & SPECIFICATIONS   Universal hypoid transmission fluid BB00.40-P-0235-07A
    Rear axle differential dia. 168 mm AR35.31-P-0540-05E
    SPECIAL TOOL Drift Fig 8
    Rear axle differential dia. 185 mm AR35.31-P-0540-05F 
    SPECIAL TOOL Drift Figure
REFER TO COMPONENT MODIFICATIONS Radial seal on side of rear axle housing and connecting flange modified As of 01.04.98 on model 210.003 /004 Taxi version and on model 210.007 /010 /020 /035 /037 /061 /210 /235 /237 /261 /610 BT35.31-P-0013-01A
    Rear axle differential dia. 198 mm, 210 mm dia. rear axle differential in rear axle differential 210E AR35.31-P-0540-05C 
    SPECIAL TOOL Drift Figure
REFER TO COMPONENT MODIFICATIONS Radial seal on side of rear axle housing and connecting flange modified As of 01.10.01 with model 170, 202, 203, 208, 209, 210 with rear axle differential dia. 198 mm and with model 203, 208, 210 with rear axle differential dia. 210 mm in rear axle differential 210E BT35.31-P-0013-01B
    Rear axle center assembly dia. 210 mm AR35.31-P-0540-05B
    SPECIAL TOOL Drift Fig 11
10 Replace breather (55) of rear axle differential (50) TORQUE SPECIFICATION Model 170, 202, 208, 210 *BA35.31-P-1005-02A 
    TORQUE SPECIFICATION Model 203, 209 *BA35.31-P-1003-02B 
11 Install in the reverse order    
12 Check oil level in rear axle center assembly (50) 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.  
    Model 170, 202, 208, 210 AR35.31-P-0520-03A 
    FLUID SPECIFICATION Model 170 rear axle differential filling capacity *BF35.31-P-1001-01F 
    FLUID SPECIFICATION Model 202 rear axle differential filling capacity *BF35.31-P-1001-01D 
    FLUID SPECIFICATION Model 208 rear axle differential filling capacity *BF35.31-P-1001-01H 
    FLUID SPECIFICATION Model 210 rear axle differential filling capacity *BF35.31-P-1001-01E 
    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 for rear axle differential *BA35.31-P-1002-02A 
    Model 203, 209 AR35.31-P-0520-03I
    FLUID SPECIFICATION Filling capacity of rear axle differential *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 for rear axle differential *BA35.31-P-1001-02B 
REFER TO COMPONENT MODIFICATIONS Oil filler/drain screw on rear axle differential modified Phased in as of 19.01.04 BT35.31-P-0015-01A
Test values for connecting flange/differential housing

Number Designation Model 170 Model 202 Model 203.006/016/ 064/206/216/ 264/706, Model 203.004/204 with code 450
BE35.31-P-1001-05A Axial play between connecting flange and differential housing mm 0.03...0.3 0.03...0.3 0.03...0.3
Test values for connecting flange/differential housing

Number Designation Model 208 Model 209 Model 210
BE35.31-P-1001-05A Axial play between connecting flange and differential housing mm 0.03...0.3 0.03...0.3 0.03...0.3
TORQUE SPECIFICATION Rear axle center assembly housing

Number Designation Model 208 Model 210
BA35.31-P-1001-02A Bolt, end cover to rear axle differential Bolt+washer Nm - 50
Flange bolt (TORX, internal serrations) Stage 1 Nm 30 30
Stage 2 ∠° 45 45
BA35.31-P-1002-02A Oil filler screw, rear axle differential Nm 50 50
BA35.31-P-1003-02A Oil drain screw for rear axle differential Nm 50 50
BA35.31-P-1005-02A Breather, rear axle center assembly Nm 25 30
TORQUE SPECIFICATION Rear axle center assembly housing

Number Designation Mode 170 Model 202
BA35.31-P-1001-02A Bolt, end cover to rear axle differential Bolt+washer Nm - 50
Flange bolt (TORX, internal serrations) Stage 1 Nm 30 30
Stage 2 ∠° 45 45
BA35.31-P-1002-02A Oil filler screw, rear axle differential Nm 50 50
BA35.31-P-1003-02A Oil drain screw for rear axle differential Nm 50 50
BA35.31-P-1005-02A Breather, rear axle center assembly Nm 25 25
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
BA35.31-P-1002-02B Oil drain screw, rear axle differential Nm 50
BA35.31-P-1003-02B Breather, rear axle center assembly Nm 25
BA35.31-P-1004-02B Bolt, end cover to rear axle differential Bolt+washer Nm -
Flange bolt Stage 1 Nm 30
(TORX, multipoint socket) Stage 2 ∠° 45
TORQUE SPECIFICATION Rear axle differential housing

Number Designation Model 203.006/007/ 008/064/206/ 207/208/264/ 706/707/708/ 764, Model 203.004/204 with code 450 up to 08/2002 Model 203.007/207/ with code 450
BA35.31-P-1001-02B Oil filler screw, rear axle differential Nm 50
BA35.31-P-1002-02B Oil drain screw, rear axle differential Nm 50
BA35.31-P-1003-02B Breather, rear axle center assembly Nm 25
BA35.31-P-1004-02B Bolt, end cover to rear axle differential Bolt+washer Nm 50
Flange bolt Stage 1 Nm 30
(TORX, multipoint socket) Stage 2 ∠° 45
TORQUE SPECIFICATION Rear axle differential housing

Number Designation Model 203.035/045/ 235/245/735/ 745/747, 203.061/261 up to 08/2002, Model 203.004/006/ 204/ 206/706 up to 08/2002
BA35.31-P-1001-02B Oil filler screw, rear axle differential Nm 50
BA35.31-P-1002-02B Oil drain screw, rear axle differential Nm 50
BA35.31-P-1003-02B Breather, rear axle center assembly Nm 25
BA35.31-P-1004-02B Bolt, end cover to rear axle differential Bolt+washer Nm 50
Flange bolt Stage 1 Nm 30
(TORX, multipoint socket) Stage 2 ∠° 45
TORQUE SPECIFICATION Rear axle differential housing

Number Designation Model 203.016/216
BA35.31-P-1001-02B Oil filler screw, rear axle differential Nm 50
BA35.31-P-1002-02B Oil drain screw, rear axle differential Nm 50
BA35.31-P-1003-02B Breather, rear axle center assembly Nm 25
BA35.31-P-1004-02B Bolt, end cover to rear axle differential Bolt+washer Nm 50
Flange bolt Stage Nm 30
(TORX, multipoint socket) Stage 2 ∠° 45
TORQUE SPECIFICATION Rear axle differential housing

Number Designation Model 209.316, Model 209.375/ 376/475/ 476 up to 23.4.04
BA35.31-P-1001-02B Oil filler screw, rear axle differential Nm 50
BA35.31-P-1002-02B Oil drain screw, rear axle differential Nm 50
BA35.31-P-1003-02B Breather, rear axle center assembly Nm 30
BA35.31-P-1004-02B Bolt, end cover to rear axle differential Bolt+washer Nm -
Flange bolt Stage 1 Nm 30
(TORX, multipoint socket) Stage 2 ∠° 45
TORQUE SPECIFICATION Rear axle differential housing

Number Designation Model 209.341/ 342/343/ 361/441/ 442/461 Model 209.365/ 465
BA35.31-P-1001-02B Oil filler screw, rear axle differential Nm 50 50
BA35.31-P-1002-02B Oil drain screw, rear axle differential Nm 50 50
BA35.31-P-1003-02B Breather, rear axle center assembly Nm 25 25
BA35.31-P-1004-02B Bolt, end cover to rear axle differential Bolt+washer Nm 50 -
Flange bolt Stage 1 Nm 30 30
(TORX, multipoint socket) Stage 2 ∠° 45 45
FLUID SPECIFICATION Rear axle differential

Number Designation Model 202.033/093/ 133/193 model 202.085 with 5-speed manual transmission, model 202.134/194 with (code 450) Taxi version
BF35.31-P-1001-01D Filling capacity Rear axle differential Liters 1.1
Specifications for Operating Fluids Sheet -
Sheet BB00.40-P-0235-07A
FLUID SPECIFICATION Rear axle differential

Number Designation Model 210.003/004 except code 450 Model 210.010/020/ 035/037/048/061 /062/210/235/ 237/248/261/262 /610 Model 210.006/015/017/ 025/045/053/055/ 063/065/08/206/215/ 217/225/245/263/ 265/28/606/663, 210.007 with code 450
BF35.31-P-1001-01E Filling capacity Rear axle differential Liters 0.7 1.1 1.1
Specifications for Operating Fluids Sheet BB00.40-P-0235-07A BB00.40-P-0235-07A BB00.40-P-0235-07A
FLUID SPECIFICATION Rear axle differential

Number Designation Model 210.070/ 074/270/274 up to 31.01.98, 210.072/272/617 Model 210.003/004 with code 450, 210.007 except code 450 Model 210.070/ 074/270/274 as of 01.02.98, 210.016/026/ 216/226/616
BF35.31-P-1001-01E Filling capacity Rear axle differential Liters 1.3 1.1 1.6
Specifications for Operating Fluids Sheet BB00.40-P-0235-07A BB00.40-P-0235-07A BB00.40-P-0235-07A
FLUID SPECIFICATION Rear axle differential

Number Designation Model 170.465/466
BF35.31-P-1001-01F Filling capacity Rear axle differential Liters 1.1
Specifications for Operating Fluids Sheet BB00.40-P-0235-07A
FLUID SPECIFICATION Rear axle differential

Number Designation Model 208.365/ 370/465/470 Model 208.374/474
BF35.31-P-1001-01H Filling capacity Rear axle differential Liters 1.1 1.6
Specifications for Operating Fluids Sheet BB00.40-P-0235-07A BB00.40-P-0235-07A
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 203.016/216
BF35.31-P-1001-01K Filling capacity Rear axle differential Liters 1.1 1.6
Specifications for Operating Fluids Sheet BB00.40-P-0235-07A BB00.40-P-0235-07A
FLUID SPECIFICATION Rear axle differential

Number Designation Model 209.341/342/343/ 361/441/442/461 Model 209.308/354/ 356/365/454/456/465 Model 209.316, Model 209.375/376/475/476 up to 23.4.04
BF35.31-P-1001-01K Filling capacity Rear axle differential Liters 1.0 1.1 1.6
Specifications for Operating Fluids Sheet BB00.40-P-0235-07A BB00.40-P-0235-07A BB00.40-P-0235-07A
Fig 2: Identifying Assembly Stand (201 589 03 31 00)
G04636381
Fig 3: Identifying Assembly Stand (129 589 00 31 00)
G04636382
Fig 4: Identifying Supports (2 EA.) (140 589 40 63 00)
G04636383
Fig 5: Identifying Supports (220 589 01 63 00)
G04636384
Fig 6: Identifying Sealant Gun (112 589 00 25 00)
G04636385
Fig 7: Identifying Removal And Installation Tool (116 589 01 62 00)
G04636386
Fig 8: Identifying Drift (201 589 03 15 00)
G04636387
Fig 9: Identifying Drift (126 589 00 15 00)
G04636388
Fig 10: Identifying Drift (140 589 10 15 00)
G04636389
Fig 11: Identifying Drift (140 589 06 15 00)
G04636390
Fig 12: Identifying Drift (140 589 16 15 00)
G04636391
Repair materials

Number Designation Order number
BR00.45-Z-1061-01A Sealant, Omnifit 100H (50 g) -
BR00.45-Z-1013-01A Sealant A 003 989 98 20
BR00.45-Z-1010-01A Sealant A 001 989 25 20
BR00.45-Z-1046-04A Cleaning spray, Loctite 7063 (150ml) A 001 986 71 71 10
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