My Mitsubishi Colt (2009 plate) driver side (two door) won't open. I have taken this into an auto electrician but unless they try forcing it open and potentially breaking the door card (which costs roughly £400-500). I can't really afford this so I was wondering if someone knew of an easier way to trick the door into opening. I think the reason why the door was playing up in the first place was due to it being really cold and now in the summer it being very warm. Can someone help?