Hi, I’m new to the forum, never really had to ask for help as everything’s on here but I have a problem I can’t find an answer to. I have a 2010 2.0D Astra J that won’t start when it’s cold. Initially I thought it was the battery and have replaced that. I then changed the glow relay and plugs and I’m still having trouble when it’s cold. It will start with easy start (I know I shouldn’t use it in a diesel) but after using that it will continue starting all day until the engine gets cold again. I