Why does my BMW X4 make a clicking noise when starting?

I recently purchased a used BMW X4 and I've noticed that when I start the car, there is often a clicking noise coming from the engine. It doesn't happen every time, but it's becoming more frequent. What could be causing this and should I be concerned?

The clicking noise you are hearing is most likely due to a faulty starter motor. This is a common issue in BMW X4 models and it is recommended to have it replaced as soon as possible to avoid further damage.

It's possible that the clicking noise is caused by a loose or corroded battery connection. I would suggest checking the battery cables and cleaning them if necessary. If the issue persists, it could be a sign of a failing battery.

Another potential cause of the clicking noise could be a worn out serpentine belt. This belt controls several components of the engine, including the alternator and water pump, and if it is worn or damaged, it can make a clicking noise. You should have it inspected and replaced if necessary.