Hi all, just a word or warning, do not fit these cheap type things you can get off eBay. I fitted them to my Audi A5 last year and because it's cheap chinese metal they corrode on the inside quite quickly and then seize to your valve so basically you can't get them off which is a problem when you want to pump up your tyre.
I ended up using a mini blow torch to expand them and mole-grips but damaged the rubber valve stems getting them off.
Avoid like the plague and spread the word.
http://www.ebay.co.uk/itm/4-x-Chrome-Tyre-Valve-Dust-Caps-Fits-Bmw-M-Alloy-Wheel-/252431757045?hash=item3ac61aeef5:g
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I ended up using a mini blow torch to expand them and mole-grips but damaged the rubber valve stems getting them off.
Avoid like the plague and spread the word.
http://www.ebay.co.uk/itm/4-x-Chrome-Tyre-Valve-Dust-Caps-Fits-Bmw-M-Alloy-Wheel-/252431757045?hash=item3ac61aeef5:g