How to troubleshoot a noisy engine on a Kia Ceed?

My Kia Ceed's engine is making a loud noise, what could be the possible causes and how can I fix it?

There are a few possible reasons for a noisy engine, such as worn bearings, low oil level, or faulty spark plugs. I would recommend checking these components first and replacing them if necessary. If the issue persists, it's best to take your car to a certified mechanic for further inspection.

Before taking your car to a mechanic, you can try using a high-quality fuel additive to clean any build-up in the engine. This may help reduce the noise and improve engine performance. Remember to always follow the instructions on the product carefully.

In some cases, a noisy engine could be a sign of a more serious issue, such as a damaged timing chain. If you suspect this may be the case, it's best to have a professional diagnose and repair it. Ignoring a problem with the timing chain can lead to more costly repairs in the future.