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BMW Battery Replacement – How to Do it Yourself If your BMW keyfob does not respond to the lock or unlock buttons, or if it has stopped working entirely, then you may need a new battery. It's not difficult to replace the battery at home. You simply need to locate the access port hidden inside the valet key, take it out, it, and then replace the battery to a new one. You will then need to register the new battery. How to Replace the Battery A car battery is among the most important parts of any vehicle. It's likely to require replacement at least once during the life of a driver. However replacing a BMW battery isn't necessarily the most complicated DIY project, and you can even save money by performing the task yourself. Knowing the amount of work necessary to replace a battery is the key to a successful DIY project. The first step is to identify the type of battery your BMW uses. There are three kinds of batteries, each with their own pros and cons. One of the most popular is a lead-acid battery which contains sulfuric acid and lead. It produces electricity through an chemical reaction, and it recharges itself whenever you drive your BMW. Other battery types found in BMWs include Gel or Absorbent Glass Mat. These batteries operate similarly but require different handling and installation. Once you have a clear picture of the type of battery your BMW has, it's time to replace the old one. The majority of auto parts stores have systems that match your BMW's make and model with the appropriate battery, which can save you time. You can also check the owner's manual, which should list the type of battery needed for your particular model. To change the battery in a BMW key fob, switch off your car and then remove the metal blade of the valet key, or a flat screwdriver to reach the lock cylinder. Remove the liner from the fob and locate the battery. After taking the batteries out, clean the terminal connectors, then carefully reinstall them. Don't tighten the brackets too much, as this could cause cracks in the battery case. Connect the positive terminal prior to the negative terminal. Finally, connect the upholstery to its normal position. Registering the battery you have purchased is an excellent thing to do. This will allow the engine control module, also referred to as the DME, be aware that you have an updated battery and it won't be unsure with which one to charge. It will also reset the battery's age statistics which can help to avoid charging too much for your new BMW battery in Smyrna or Alpharetta. How to Replace a CR2032 battery It's a pain to have a dead key fob, but replacing the battery is easy. It only takes just a few minutes and can be done at home. BMW key fobs are powered by CR2032 watches batteries. These batteries are a bit more expensive than other ones but can be purchased at any convenience store or auto parts store. You can replace the battery by taking off the old one and replacing it with a new one. Then you can put the fob back on. This is a straightforward process that will allow you to restart your car within a matter of minutes. If you've been driving your BMW around the Johns Creek area, and you notice that your key fob isn't working it's probably due to an inoperative battery. Fortunately, it's easy to fix! Press the small tab located on the left side of the BMW key fob to open the valet key. Once the key fob is open, you'll notice an access port that is small, in which the battery is. The battery cover is removed using an screwdriver with a flat head, or other similar tool. If you're looking for a brand new BMW or a used car near Decatur Make sure to check our inventory at Tulley BMW Nashua. Contact visit this website if have any questions about our vehicles. We're eager to help you find the perfect car for your requirements! How do you replace a CR2450 battery The BMW key fob provides security and convenience at the push of the button. As time passes the battery in your BMW key fob may be damaged, and require replacement in order for it to continue working properly. Knowing how to replace the BMW key fob can assist you in getting back on the road again swiftly and easily. There are a variety of BMW keyfobs. However, they all use the same type of battery that is a coin cell CR2450 battery. This small, round battery is available in most stores for less than $1 per unit. In addition to being readily available, CR2450 batteries are also very easy to install and take off from the key fob. To replace the CR2450 batteries in your BMW find the tab that opens the metal valet within the fob. Once the metal valet has been removed, look for the small access port that hides the key battery on the front of the fob. Remove the cover using a flat-headed screwdriver, revealing the battery. After the old battery has been removed, replace it with a brand new one with the positive side facing upwards and then reassemble the key fob. Test the key fob after the battery has been replaced to ensure it's working as intended. Contact your BMW dealer if the key fob is still not responding. The older BMW models may require the key fob and vehicle to be re-synced after changing the battery, however this isn't the norm for BMWs made in recent years. Although it is possible to swap the battery on an older BMW key fob by cutting the case and then soldering into a new battery this method is not recommended because it can damage the internal circuit board. Instead, Tulley BMW of Nashua recommends following the instructions in this guide to change the CR2450 battery on the majority of BMW key fobs. This simple task can take only a few minutes and get you back on the road. How to Replace the CR2032 Side Indent Battery It is easy to replace the CR2032 side-indent battery found in BMW series 1 keyfobs (and other models). The battery appears like a penny and can be easily inserted into the slot. Simply use your fingers to take out the battery that was in use, and then replace it with a brand new one, making sure that it be in line with the polarity. You can also find replacement batteries at numerous auto parts stores and on the internet. The process is slightly different depending on whether your BMW includes a “diamond key fob”. The CR2016 battery inside this key isn't identical to a CR2032 or a CR2025, and you can't open the case to replace it. You can test whether it works by rotating a CR2016 with some conductive aluminum foil. If it fails to work, you will need to cut the fob plastic part to expose the battery, and then put into a new one. The tiny access port on most BMW key fobs can be opened with the edge of a key's metal blade or a flat-headed screwdriver. If you don't have an edged blade made of metal, you can make use of the edge of a pen. After you've removed your cover, you can see the CR2032 battery inside. It is important to remember that the CR2032 side indent battery isn't intended to be serviced, and it's impossible to open the case. This battery is rechargeable, and is charged when you insert the ignition key. It's a good idea keep a spare key in the event that your remote is broken or lost. Contact us at Tulley BMW Nashua if you need assistance programming your BMW remote, or replacing a dead phone. We have a team of committed experts who can assist you with any questions or concerns. We are looking forward to having a conversation with you!