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BMW Battery Replacement – How to Do it Yourself If your BMW key fob isn't responding to the locks and unlock buttons or has stopped working altogether it may need an upgrade to the battery. It's simple to replace the battery yourself. The battery can be replaced by removing the access port from the valet key. After that, you need to register the replacement battery. How to replace a battery A car battery is the most important part of any vehicle and will need to be replaced at least once during the course of a driver's career. However replacing bmw car key replacement does not have to be the most complicated do-it-yourself project, and you may even save money by doing it yourself. The key to an effective DIY battery replacement is knowing the amount of work the job actually requires. It is crucial to know the type of battery that your BMW makes use of. There are three different types, each of which has its particular pros and cons used. One of the most common is a lead-acid battery, that is made up of lead and sulphuric acid. It generates electricity by an chemical reaction, and it recharges itself when you drive your BMW. Other types of batteries in BMWs include Gel or Absorbent Glass Mat. These batteries operate similarly however they require a different installation and handling. It's time to replace your old battery once you know which one your BMW makes use of. Many auto parts stores have a system that matches the BMW model and include the right battery. This will help you save time. You can also refer to your owner's guide which will include the type of battery required for your particular model. To replace the battery on the BMW key fob, switch off your vehicle and take out the metal blade of the valet key, or a flat screwdriver that can access the lock cylinder. Then, you can remove the fob's liner, and locate the battery. After removing the battery clean the terminal connections and then reinstall them with attention. Don't tighten brackets too much, as this could cause cracks in the battery case. Connect the positive terminal first, then the negative. Then, reconnect the upholstery to its normal position. Registering your new battery is a good thing to do. This will allow the engine control module, also referred to as the DME, know that you've got new batteries and it won't be unsure about which one to charge. It will also reset the statistics on battery age which can help to stop overcharging of your brand new BMW battery in Smyrna or Alpharetta. How to Replace a CR2032 battery It's a hassle to lose a key fob, however replacing the battery is simple. It takes only some minutes and can be done right at home. BMW key fobs are powered by CR2032 watches batteries. These batteries are a bit more expensive than others but are available at any convenience store or auto parts store. If you've got the new battery, you can simply remove the old one and replace it with the new one, and put the cover back on. This is a simple procedure that will allow you to get your car running in a matter of minutes. A dead battery is likely to be the cause of your BMW key fob not working when you're driving around Johns Creek. Fortunately, it's easy to repair! Press the small tab located on the left side of the BMW key fob to open the valet key. You'll see a small port near the battery once the key fob has been opened. The cover for the battery can be removed using a flat-headed screwdriver, or other similar tool. If you're looking for a new BMW or a used car in the vicinity of Decatur, then be sure to check our inventory at Tulley BMW Nashua. Contact us today if you have any questions about our vehicles. We look forward to helping to find the perfect car for you! How do you replace the CR2450 Battery The BMW key fob offers security and convenience with the touch of one button. However with time, the battery inside the BMW key fob will weaken and require replacement to continue working correctly. Understanding how to replace the BMW key fob can assist you in getting back on the road again quickly and quickly. There are many different kinds of BMW key fobs most use the same battery type, a CR2450 or CR2032 coin cell battery. This small, round battery can be commonly found in most shops and can be bought for less than a dollar per unit. CR2450 batteries are able to be installed and removed from the key fob. To replace the CR2450 battery in your BMW, first find the key fob's tab that releases the metal valet key within the fob. Once the metal valet has been removed, locate the small access port that conceals the key battery on the front of the fob. Using a flat screwdriver, remove the cover and expose the battery. Once the old battery is removed, replace it with a brand new one with the positive side facing up and then reassemble the key fob. Test the key fob after the battery has been replaced to ensure it is still working properly. If the key fob still does not respond, contact your BMW dealership for further troubleshooting assistance. Some older BMW models require that the key fob be synchronized with the vehicle after replacing the battery. However, this is not the case with BMWs produced in recent years. It is possible to replace the battery inside an old BMW key fob by opening the case and then soldering the new battery in. However, this procedure is not recommended as it may damage the internal circuitry. Instead, Tulley BMW of Nashua recommends following the steps in this guide to replace the CR2450 battery for most BMW key fobs. This simple task will take only a few minutes to return you to the road. How do I replace a CR2032 Side Indent Battery It is easy to replace the CR2032 side-indent batteries found in BMW series 1 keyfobs (and other models). The battery looks like a penny, and can be easily inserted into the slot. Replace the battery you have used before with the new one using your fingers. Make sure to make sure that the polarity matches. There are replacement batteries in a variety of auto parts stores, as well as on the internet. The procedure differs slightly in the event that your BMW is equipped with a “diamond key fob”. The CR2016 battery inside the key is not the same as either a CR2032 or a CR2025 however, and you are unable to open the case to replace it. However, you can try shimming a CR2016 cell with some electrically conductive foil to determine if it will work. If it doesn't work, you'll need to cut off the plastic fob to expose the battery. Then solder in a replacement. The small access port on most BMW key fobs is accessible with the edge of another key's blade made of metal or a screwdriver that is flat. If you don't have a metal blade or a flat screwdriver, you can use the tip of a pencil. Once you remove the cover and then open the cover, the CR2032 batteries are clearly visible. The CR2032 side-indent battery is not designed to be maintained and the case is not opened. The battery can be recharged and will charge when the key is inserted in the ignition. It's a good idea to have a spare key available in the event that your remote is damaged or lost. If you need help programming your BMW remote or replacing batteries that are dead, call us at Tulley BMW of Nashua. We have a dedicated team of experts who are ready to address any questions or concerns. We look forward to hearing from you!