Why does my BMW X5's engine struggle to start on really cold days?

I recently purchased a used BMW X5 and have noticed that on colder days, the engine struggles to start. Is there a specific reason for this and is there anything I can do to prevent it from happening?

This is a common issue with BMW X5 models, especially on really cold days. The cold temperatures can cause the battery to lose some of its charge, making it harder for the engine to start. One way to prevent this is by using a trickle charger during the winter months to keep the battery charged.

Another reason for your engine struggling to start could be due to old spark plugs. I recommend checking and replacing them if needed. This will improve the overall performance of your engine and make starting on cold days much easier.