How can I troubleshoot an issue with my Vauxhall Crossland engine making a knocking sound?

I've noticed that my Vauxhall Crossland's engine is making a knocking sound while driving. It's been happening for a few days now and I'm not sure what could be causing it. What could be causing this issue and how can I troubleshoot it?

A knocking sound in the engine could be a sign of low oil levels. Check your oil and if it's low, top it up immediately to see if the noise goes away.

If your oil levels are fine, the knocking sound could be caused by a faulty spark plug. Consider getting it checked and replaced if necessary.

Another possible cause could be a problem with your timing belt. This issue should be addressed by a certified mechanic as soon as possible.

I had a similar issue with my Crossland and it turned out to be a problem with the fuel injectors. Get them checked and cleaned by a professional.