Why does my Nissan Micra's engine make a loud ticking noise?

I recently noticed that whenever I turn on my Nissan Micra, the engine makes a loud ticking noise. This noise continues even while the car is running. What could be causing this noise and is it something I should be concerned about? Thank you!

It is possible that the ticking noise is coming from an issue with the spark plugs. They may need to be replaced or simply just tightened. I recommend taking your car to a trusted mechanic to have them take a look.

Another possible cause could be a problem with the engine's oil supply. Make sure to regularly check and change your car's oil to prevent any potential issues. If the noise continues, I suggest bringing your car to a mechanic for further inspection.