Why does my Vauxhall Astra's engine make a loud clicking noise?

I've noticed that when I start my Vauxhall Astra, the engine makes a loud clicking noise that doesn't seem to go away. What could be causing this and should I be concerned?

Hi Sophie, it sounds like there may be an issue with the valve train in your engine. It's best to get this checked out by a mechanic as soon as possible to prevent any further damage.

Hey Sophie, I had a similar issue with my Astra and it turned out to be a faulty lifter. I would recommend taking it to a trusted mechanic for a thorough inspection.

Hi Sophie, check to make sure your oil levels are good. Low oil can cause clicking noises in the engine. If the levels are fine, then it's best to take it to a mechanic for a proper diagnosis.