11 28 010 Replacing drive belt for alternator (N55)

2011 BMW 1MSECTION 11 28 010 Replacing drive belt for alternator (N55)

Special tools required: 

  • 11 0 390

Necessary preliminary tasks: 

Drive belt route 

NOTE: Mark the direction of travel of the drive belt if it is to be reused.

Turn belt tensioner (1) in direction of arrow until belt tensioner bore hole (2) is flush on crankcase.

Hold belt tensioner (1) under tension.

Secure special tool 11 0 390.

Remove drive belt (3).

Fig 1: Drive Belt Routing Diagram
G09845187Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Installation note: 

Check drive belt for correct installation position and, if reusing, observe direction of travel. Risk of damage  .

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.