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Tightening diagram of crankshaft bearing caps - AR03.20-P-4351-02AV

TORQUE SPECIFICATION Crankshaft bearing cap

Number Designation Engines 112,113
BA03.20-P-1003-01D Crankshaft bearing cap bolt M10 Stage 1 Nm 5
Stage 2 Nm 30
Stage 3 ∠° 90
Fig 1: Identifying External Torx Set (001 589 76 09 00)
G04605701Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
  1. Moisten the thread and head contact surface of the bolts of the crankshaft bearing caps with oil.
  2. Tighten the bolts of the crankshaft bearing caps as specified in the tightening diagram.

    IMPORTANT Pay attention to tightening torque and tightening angle of crankshaft bearing cap bolts.

    Fig 2: Identifying Bolts Of Crankshaft Bearing Caps
    G04605702Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

    IMPORTANT If no tightening angle wrench is available, tighten crankshaft bearing cap bolts further by the specified angle at a stroke, using a socket wrench and locking handle.

    Do not use a flexi-rod torque wrench for tightening in order to avoid any angle errors.

  3. Turn the crankshaft (to check that it moves freely).
    Fig 3: Locating Crankshaft Bearing Cap Bolts
    G04605703Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
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