Hi, I have a mini cooper clubman and today I decided to change my wheels for the winter ones. I changed 3 wheels without problems and on the fourth one the security screw broke when i was trying to unscrew it. It didn't broke the full head but just the piece on the top with the security drawing. So now I am really in trouble. I cannot put it back because the inside of the screw is in very bad shape. Did anyone experienced this problem before? what can i do? In my garage can they take it out easily?

Thank you for your answers...

(i have made pictures of it but i cant put it here...)

With the wheel removed is there any bolt sticking out hub or has it sheared off flush?

The thing is that I can't take the wheel off... I can't unscrew it like that...

Most garages can just drill it out

As said garage will drill out or use a tool like this:
Locking Wheel Nut Remover, Removes 100% of Locknuts with No Damage to the Wheel (http://www.dynomec.co.uk/indexEnglish.html)

ok thank you very much. I'll go to the garage tomorrow and I hope they will be able to do that... Everybody uses these security screws? Nobody already had problems with it? It looks pretty fragile...

In the UK MINI emergency service covers problems like that. So check with your main dealer they may do it for free depending how old your clubman is.