You can try wreckers asides from authorised BMW dealers, which are everwhere.

I've got a couple of wreckers here on the Gold Coast that I've already checked out whilst looking for a wrecked X5, mainly a 4.6 or 4.8, but to no avail. I would've thought though that the number of X5's in Sydney would far outweigh what we have here and for that matter even Melbourne would have more thereby increasing your chances of coming across one in a yard. I'd start with 'ol mate Google and then register your interest with as many yards as you can and let them know the particular make, part(s) etc you are after. Don't just sit back and wait, get in their face every week and you might just get lucky. Good luck.

BTW, what spare parts are you specifically referring to ??

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