Why is the BMW Z4 engine making strange noises?

I recently noticed that my BMW Z4 engine is making unusual sounds when I start the car. What could be causing this and how can I fix it?

It's possible that there is an issue with the spark plugs in your BMW Z4. I would recommend getting them checked and replaced if necessary.

Another potential cause could be a problem with the timing belt. Have a mechanic inspect it and replace it if needed.

Make sure you're using high-quality gasoline as low-quality fuel can also cause strange noises in your BMW Z4 engine.