Why is my Vauxhall Insignia engine struggling to start?

I have a Vauxhall Insignia and recently it has been struggling to start, especially during colder weather. It seems like the battery is not the issue, as all the electronics turn on fine. Any ideas on what could be causing this?

One possible reason for your issue could be a faulty starter motor. If it's not functioning properly, it could be causing the struggle to start. I would recommend taking it to a mechanic to have it checked and potentially replaced.

Another possibility could be an issue with the fuel pump. If it's not delivering enough fuel to the engine, it could cause difficulties starting it up. I suggest getting the fuel pump checked and potentially replaced if necessary.

Have you checked the spark plugs recently? If they are worn out or dirty, it could affect the engine's ability to start. Consider getting them replaced to see if it improves the starting issue.