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HOMESERVICE MANUALSBMW2021Z4 SDRIVE M40IREPAIR AND DIAGNOSISGENERAL INFORMATIONOEM GENERAL INFORMATIONGENERAL ORPHAN DATA (1 OF 2)(INSTALLING FRONT BRAKE DISC)
2021 BMW Z4 sDrive M40i

(Installing front brake disc)

2021 BMW Z4 sDrive M40iSECTION (Installing front brake disc)
  • Clean contact surface of wheel hub thoroughly and remove any traces of rust if necessary.

    Irregularities in the contact surface can cause distortion in the brake disc!

  • Mount brake disk (2).
  • Position and tighten the screw (1).
  • Replace screw.

Parts:  Screw

G16620927Courtesy of BMW OF NORTH AMERICA, INC.
(TIGHTENING TORQUES SPECIFICATION)

Brake disc to front wheel hub 
M8
Replace screw.		 Tightening torque  16 Nm


  • Position brake disc (2) on wheel hub.
  • Replace the screw (1).

    Parts:  Screw

  • Position and tighten the screw (1).
(TIGHTENING TORQUES SPECIFICATION)

Brake disc to front wheel hub 
M8
Replace screw.		 Tightening torque  16 Nm
G16620974Courtesy of BMW OF NORTH AMERICA, INC.
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.