BMW X3 Service & Repair Manual: General information on light alloy disc wheels

BMW X3 Service & Repair Manual / Suspension / Disc wheels (rims) / General information on light alloy disc wheels

NOTE: It is sometimes difficult to distinguish light alloy disc wheels visually from steel disc wheels.

Identifying features:

  • Sticker on light alloy disc wheel. (1) = Indication "Aluminum"
  • Wall thickness of rim dish: approx. 8 mm.
  • Light alloy disc wheels are not magnetic.
  • Light alloy disc wheels can be identified from their BMW parts numbers.

Suspension

IMPORTANT:

  • Use only BMW-approved two-part balancing weights.
  • When fitting two-part balancing weights, always use specified tools.
  • Do not straighten light alloy disc wheels: always replace damaged light alloy disc wheels.
  • Notches in light alloy disc wheels can lead to cracking.
  • Do not lubricate wheel studs.
  • When fitting tires, avoid damaging light alloy disc wheels, e.g. on sharp-edged retaining claws on tire fitting machine.
    Checking wheel rim for lateral and radial runout
    Necessary preliminary tasks: Remove WHEEL. Check WHEEL for lateral and radial runout. Remove TIRE from disc wheel. Remove dirt from rim base ...

    Initializing run flat indicator (rpa)
    NOTE: Checking the tire pressure is based on speed monitoring of the wheels in relation to each other. A tire puncture is detected and signalled by ...

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