Mercury Milan 2008 will not start in cold weather after a few times sometimes it

What is your question?

after a few tries sometimes it will and sometimes you gp back next day and it starts Summer no problem does a beautiful job please help Thanks

What makes this problem better or worse?

Only does it in cold weather

How long has your 2008 Mercury Milan had this problem?

every winter I have had it in shops and no one can find the problem