S212 front camber adjustment

[Shankmeister]

I've just taken my 2010 S212 to my local Protyre for Hunter wheel alignment. They seemed to really know their stuff and gave me plenty of information about what needed doing remedially to resolve the uneven tyre wear I've been suffering but they explained that front camber is a long way out but isn't adjustable unless I buy some special bolts from Mercedes.

I've done a bit of googling for search terms like S212 adjustable front camber bolts and similar but I'm not finding anything. Can anyone tell me what part I need to buy, please?

Thanks in advance!