BMW X3 Service & Repair Manual: 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.

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.