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Home >> Mercedes Benz >> 2003 >> S430 Base >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Rear Axle-- Testing & Repair -- 215 & 220 Chassis - 2 Of 2 >> Testing & Repair >> Disassembling and assembling rear axle differential, adjusting gear set - AR35.31-P-0550A >> Attaching end cover - AR35.31-P-0550-28EA

Attaching end cover - AR35.31-P-0550-28EA

REFER TO COMPONENT MODIFICATIONS Rear axle differential end cover with non-machined sealing surface Model 208.374, 210, 215, 220 with rear axle center piece diameter 210 as of production date 15.5.00 BT35.31-P-0014-01A
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
TORQUE SPECIFICATION REAR AXLE CENTER ASSEMBLY HOUSING

Number Designation Model 215 Model 220
BA35.31-P-1001-02A Bolt, end cover to rear axle differential Bolt+washer Nm - -
Flange bolt
(TORX, internal serrations)		 Stage 1 Nm 30 30
Stage 2 ∠° 45 45
TORQUE SPECIFICATION REAR AXLE DIFFERENTIAL HOUSING

Number Designation Model 203.016/216
BA35.31-P-1004-02B Bolt, end cover to rear axle differential Bolt+washer Nm 50
Flange bolt
(TORX, multipoint socket)		 Stage 1 Nm 30
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-1004-02B Bolt, end cover to rear axle differential Bolt+washer Nm -
Flange bolt
(TORX, multipoint socket)		 Stage 1 Nm 30
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-1004-02B Bolt, end cover to rear axle differential Bolt+washer Nm 50 -
Flange bolt
(TORX, multipoint socket)		 Stage 1 Nm 30 30
Stage 2 ∠° 45 45
Fig 1: Identifying Sealant Gun (112 589 00 25 00)
G04635075Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 2: Identifying Torque Wrench (001 589 66 21 00)
G04635076Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1013-01A Sealant A 003 989 98 20
  1. Clean machined sealing surface (a) or unmachined sealing surface (b) on the old end cover (A) or new end cover (B) as well as the sealing surface on the rear axle differential housing.

    IMPORTANT All sealing surfaces must be free of oil and grease.

    Shown on end cover of rear axle center assembly dia. 185 mm 

    Fig 3: Locating Machined And Unmachined Sealing Surfaces
    G04635077Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
  2. Apply sealing compound around circumference of sealing surface (arrow).

    IMPORTANT The sealing compound must be applied only to the specified sealing surface (arrow)in the form of a sealing compound bead of 2.0 mm ± 0.5 mm. The sealing compound must be applied within 10 min. The sealing compound bead must not be spread. Only the approved sealant may be used.

    Shown on end cover of rear axle center assembly dia. 185 mm 

    Fig 4: Locating Sealing Surface
    G04635078Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

    IMPORTANT Use flange bolts.

  3. Position the end cover (54) and secure with flange bolts.

    IMPORTANT The end cover (54) must not slip.

  4. Tighten the flange bolts with SPECIAL TOOL torque wrench to stage 1 TORQUE SPECIFICATION .
  5. Mark bolt flanges relative to rear axle differential housing (a).
  6. Place mark (b) on rear axle differential offset by 45°.
  7. Tighten flange bolts with 45° tightening angle as per stage 2.

IMPORTANT The markings (a, b) should coincide The tightening angle can also be checked using a commercially available angle tester.

Fig 5: Identifying Flange Bolts Tightening Angle
G04635079Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
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