Weasel56, thanks for the reply. Yes the hose #3 on the realoem.com parts list has to slide in then turn to lock. If it would have just slide on like the other hoses it would have been on by now. I purchased the hoses from my BMW dealer. The other question I had is that the o.s. and all the hoses are exact same as the ones I pulled off. I thought that BMW had modified them so not to freeze.
Thanks again