How do I refill the coolant in a BMW 1 Series?

I recently noticed that the coolant level in my BMW 1 Series is low. How can I safely and efficiently refill it?

First, you need to locate the coolant reservoir. It is usually a semi-transparent plastic tank with a blue cap, located near the radiator. Make sure the engine is cool before opening the cap.

Next, check the type of coolant recommended for your BMW 1 Series. It should be specified in the owner's manual or on the reservoir cap. You can purchase the correct coolant from a BMW dealership or an auto parts store.

Once you have the correct coolant, open the reservoir cap and pour the coolant slowly into the tank. Be careful not to overflow it. If necessary, use a funnel to avoid spilling.