In this study, the dry sliding wear characteristics of Al-6Si-3Cu-(0.3-2) Mg-aluminium alloys produced by the thixoforming process were examined. The cooling slope technique was employed to produce feedstock alloys before they were thixoformed at 50% liquid fraction. A pin-on-disc rig was used to carry out the wear tests at 50N load, 1m/s speed and 9km distance. The results revealed that adding magnesium to Al-Si-Cu alloy led to precipitate Al5Cu2Mg3Si5 and Mg2Si intermetallic phases. The platelet -Al5FeSi was transformed to a Chinese script -Al8Mg3FeSi6 phase with the addition of magnesium. The thixoformed alloys showed a fine globular primary phase microstructure surrounded by uniformly distributed silicon and refined fragmented intermetallic phases. Moreover, in comparison with alloys produced by the conventional casting method, the morphology and size of the primary Mg2Si particles were modified, and the Chinese script morphology of -Al8Mg3FeSi6 changed to a compact shape. The hardness of the thixoformed Al-Si-Cu alloys increased continuously with the increase in magnesium content. The wear resistance of the thixoformed alloys improved with the addition of magnesium content up to 1.5%, above which the trend reversed. The dominant wear mechanism was found to be a combination of abrasion and adhesion in the low-Mg alloys and delamination with some abrasion in the high-Mg alloy.