A battery basically stores electrical energy and then delivers it on demand to start your engine and run all the electrical systems in your car – things like your lights, radio, power windows, even the computer controlling the engine. It’s a chemical reaction creating that electricity. Modern cars rely on the battery even for simple things like remembering your radio presets. Think of it as the heart of your electrical system. It provides the initial power to get everything going. Once the engine is running, the alternator takes over and recharges the battery while also powering everything. But the battery still handles the big initial draw – that’s why a weak battery will struggle to start the car, especially in cold weather. It also acts like a shield, protecting sensitive electronics from voltage spikes and surges. A healthy battery is absolutely crucial. You'll notice if it’s failing because your car might crank slowly, struggle to start, or not start at all. Dim headlights or a flickering dashboard are early warning signs. Leaving you stranded is the biggest concern, of course. Plus, a failing battery can put extra stress on other electrical components. If you’re noticing anything like that, it's best to get it checked. We often have a good selection available, and you can find a lot of options at places like Fixparts Online if you want to browse yourself. A good battery is a relatively inexpensive way to avoid a lot of hassle. Shop smarter: Battery (MPN 66120141710) is covered for 12 months!

About BMW

The iconic three-pointed star represents Mercedes-Benz's vision of motorization on land, sea, and air.

Why Choose BMW?

• Get parts made exactly for your BMW, so they fit and work perfectly. • BMW parts are designed to last, keeping your car running smoothly for years. • Using genuine BMW parts helps maintain your car's value. • You can trust the quality and performance of parts made by the same people who built your BMW. Drive with confidence – choose BMW parts at FixParts Online.