BMW X3 Service & Repair Manual: Notes for repairing aluminum rims

BMW X3 Service & Repair Manual / Body and Frame / Body repair instructions / Notes for repairing aluminum rims

In general, the economic viability must be checked prior to the repair.

It is possible to repair the following damage (applies to cast aluminum rims labelled as AlSi7 AlSi11, AlSi12):

Depth of the damage in the aluminum at maximum 1 mm
Distance of the damage from the outer rim edge at maximum 50 mm
Paintwork damage on the remaining wheel rim

It is not possible to repair the following damage:

Deformation and cracks
Polished, forged aluminum wheel rims are unsuitable for repair.

Materials science

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