Why is my Vauxhall Zafira Life struggling to start?

I have a Vauxhall Zafira Life and it is having trouble starting. I've replaced the battery and had it checked at a mechanics, but the problem persists. What could be causing this issue?

One common culprit for this issue is a faulty starter motor. It could be failing to engage properly, preventing the engine from starting. I would recommend having it checked and potentially replaced if necessary. This should solve the starting issue.

Another possibility could be a problem with the fuel system. If the fuel pump is not functioning properly, it could cause issues with starting the engine. I suggest having the fuel system checked and potentially replaced to see if it resolves the problem.

It's also possible that there could be an issue with the ignition switch. If it is failing, it may not be sending the proper signals to start the engine. Have a mechanic check the ignition switch and replace it if necessary.