What is the most common issue with Ford Mondeos engines?

I've been having problems with my Ford Mondeo's engine lately. It seems like it's not running as smooth as it used to. Can someone give me some insight on what could be causing this issue?

It sounds like you may have a clogged fuel filter or a dirty air filter. Try replacing those first and see if it improves the engine performance.

Another common issue with Ford Mondeos is faulty spark plugs. Have those checked and replaced if necessary.

If your engine is making a knocking noise, it could be a sign of low oil pressure. Make sure to regularly check your oil levels and top up as needed.