Hi Guys, I feel really dumb for asking this but I just can't seem to get air into my tyres. Im running Event WL905 XL's on my standard 18" S3 wheels. I've tried three different service stations' air machines and none of them seem to make a seal or start sending air, it just sounds like it's letting it out. Tried on all four tyres and it's the same problem. Usually the machine just comes up with an error or a really low psi like 8 and stays there. Any ideas?