How To Replace A BMW Car Battery

Whether you’re doing routine maintenance at home or dealing with an unexpected issue on the side of the road, learning how to remove a vehicle battery from a BMW may help you save time and money that you might otherwise spend on professional treatment. Although there is no shame in scheduling servicing, we know that the most pleased drivers are those who understand how their vehicles perform in real life. That’s why we’ve put together a tutorial with everything you need to know about swiftly, securely, and easily removing a BMW car battery.

Why is BMW Battery Replacement Necessary?

A BMW battery will typically last three to five years. However, there are several elements that impact your equipment’s longevity:

  • Heat: The summer heat can cause the liquids inside the automobile battery to evaporate, lowering the battery’s lifespan.
  • Vibrations: When your battery is jostled as it travels over rough roads, the vibrations might put additional strain on your equipment.
  • Jump Starts: When your battery empties sufficiently to necessitate a jump start, your battery’s lifespan is drastically reduced.
  • Quality: OEM parts have a substantially longer lifespan than aftermarket equivalents.

Removing a Car Battery: Step-By-Step

It’s hard to remove a car battery from a BMW if you don’t know where to look for it in the first place! Unlike nearly all other cars, most new BMWs have their batteries in the trunk. Now that we’ve gotten that out of the way, let’s have a look at how to remove a car battery:

  • The battery is often found on the right side of the car, behind the upholstery that covers the trunk.
  • Using your 10 mm socket wrench, disconnect the negative battery connection from the battery. Set the cable to the side where it will not come into contact with any metal or the other cable. If required, secure it with a zip tie and a fabric covering.
  • Next, disconnect the positive battery terminal.
  • You are now prepared to remove the battery bracket. The fasteners that keep it together may be removed using a 13 mm socket.
  • Remove the old battery and replace it with the new BMW battery. Retighten the brackets, but be cautious not to overtighten them. You run the danger of shattering the battery case.
  • Before attaching the terminal connections to the car, clean them one at a time. You may also use an anti-corrosion gel at this time to prevent future issues.
  • Connect the positive terminal first, followed by the negative terminal. Replace the upholstery in its original spot.

If your BMW model is MY2002 or later, you may be required to register the new battery.

Shop for Genuine BMW Parts at Competition BMW

Competition BMW of Smithtown is a family-run business that has been servicing Long Island’s North and South Shores for over 50 years. We are proud to state that we always offer an excellent selection of New, Certified Pre-Owned, Pre-Owned, and Off-Brand Cars to suit any budget!

To make the car purchase process easier, we provide at-home test drives as well as a bespoke ordering function for any interested consumers. Along with at-home test drives, we prioritize health and safety protocols, so you know that when you come into our dealership in the Selden area, your well-being is always put first!

Please contact us if you have any questions or need additional information!