Unusual Noise Coming from My Ford Mondeo Engine

I have noticed a strange knocking sound coming from my Ford Mondeo's engine. It seems to only happen when the car is idling or running at low speeds. What could be causing this and how can I fix it?

It is possible that the knocking noise could be caused by worn out engine bearings. I would recommend taking your car to a trusted mechanic to have it checked and repaired if necessary.

Have you checked the oil level in your car? Low oil can also cause strange engine noises and damage your engine if left unaddressed. Make sure to check your oil regularly and top it off if needed.

I had a similar issue with my Ford Mondeo and it turned out to be a faulty air intake valve. I would suggest having that component checked and replaced if necessary.