Why is my Vauxhall Insignia's engine making weird noises?

I have noticed that my Vauxhall Insignia's engine is making some odd noises, like rattling and clicking sounds. It seems to happen mostly when I accelerate, but sometimes it happens even when I'm idling. What could be causing this and what should I do?

It sounds like you may have a problem with your engine's timing chain. This can cause the engine to make strange noises and it's important to get it fixed as soon as possible before it causes further damage.

I had a similar issue with my Vauxhall Insignia and it turned out to be a problem with the spark plugs. They were worn out and needed to be replaced. Have your mechanic checked them to see if they need replacing.

Another possible cause for the strange noises could be a faulty air filter. If it's clogged or dirty, it can cause the engine to make strange sounds. I would recommend having it checked and replaced if necessary.