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HOMESERVICE MANUALSBMW2006M5REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1713 (ENGINE - REPAIR)CRANKSHAFT WITH BEARING11 21 500 REPLACING CRANKSHAFT
2006 BMW M5

11 21 500 Replacing crankshaft

2006 BMW M5SECTION 11 21 500 Replacing crankshaft
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 535xi, 2010 BMW 535i, 2009 BMW 535xi, 2009 BMW 535i, and 2008 BMW 535xi. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required: 

IMPORTANT:

Aluminium screws/bolts must be replaced each time they are released  .

Aluminium screws/bolts are permitted with and without color coding (blue).

For reliable identification:

Aluminium screws/bolts are not magnetic  .

Jointing torque and angle of rotation must be observed without fail (risk of damage  ).

Necessary preliminary tasks: 

Release bolts (1).

Tightening torque 11 13 5AZ .

Installation note: 

Replace aluminium screws. 

Remove oil deflector (2).

Fig 1: Identifying Bolts And Screws
G04751093Courtesy of BMW OF NORTH AMERICA, INC.

Release bolts (1).

Tightening torque 11 11 2AZ .

Release screws (2).

Tightening torque 11 11 3AZ .

Installation note: 

Replace aluminium screws. 

Fig 2: Identifying Bolts And Screws
G04751094Courtesy of BMW OF NORTH AMERICA, INC.

Release bolts (1).

Tightening torque 11 11 4AZ .

Release screws (2).

Tightening torque 11 11 2AZ .

Installation note: 

Replace aluminium screws. 

Release steel screws (1 to 14) from outside inwards.

Tightening torque 11 11 1AZ .

Fig 3: Crankcase Bolts Tightening/Loosening Sequence
G04751095Courtesy of BMW OF NORTH AMERICA, INC.

Release bolts (1).

Tightening torque 11 11 3AZ .

Installation note: 

Replace aluminium screws. 

Remove crankshaft lower section in upward direction.

Fig 4: Identifying Bolts Location
G04751096Courtesy of BMW OF NORTH AMERICA, INC.

Remove both crankshaft radial seals (1).

NOTE: Illustrations show N46.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.