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How to Replace a Dead BMW Key Fob Most BMW owners will need to change their key fob batteries at some point. This is a simple task that will not cost you a fortune. The key fob is powered by a standard CR2032 battery and can easily be repaired at a hardware store or online, or an actual BMW dealership. Replacement Battery A dead key fob is more than a hassle to deal with. It could also be a risk. You don't want towards your car, press the unlock button, and then discover that there is no response. This is typically an indication that your BMW key fob battery is dead. Luckily, this is easy to fix at home with a replacement battery. First, you need to identify the type of battery that is needed for your BMW key fob, which is a Comfort Access/sleek slant shape keys or a Smart Key CR2450. These batteries can be purchased at hardware and auto parts stores for under $5 each. Once you have the correct type of battery, all that is left to do is replace the old battery with the new one. Make sure to shut the two halves of your key fob securely after inserting the new battery. Remove the blade made of metal from the BMW key fob. Utilize a valet, or a flat screwdriver to take it off and reveal the tiny port at the back. After that, you can remove it off the back and replace the batteries that have died. When you remove the key fob, you must be cautious not to damage the plastic. Wrapping a small amount of tape over the end of your tool will protect against scratches. After you have replaced the battery, you can put back together your BMW key fob and test it. You have successfully reprogrammed your BMW key fob if the car locks your door and starts. If not, you might require a look-up in your owner's manual, or visit a dealer for assistance. replacement bmw car key There are many places to buy replacement BMW keys regardless of whether you've lost the key fob, or just need to replace your battery. Certain online retailers offer discounts and free shipping, making them a great option for those who are on a tight budget. However, it's important to note that these prices might not include the cost of programming the new key into your vehicle. Certain BMW models include a “proximity-key” that allows you to start or unlock the vehicle by pressing a button. Certain BMW models come with a metal “proximity key” concealed in the remote control that must be inserted into ignition to start the car. Both types of BMW keys are a little different, however the procedure to replace them is almost identical. If the battery in your BMW key fob is dead and you lose it, you won't be able to unlock your car, or use Comfort Access if it is equipped. Fortunately, it's possible to replace the battery in just a few easy steps. Ensure that the windows and doors of your vehicle are closed. Next, find the unlock and lock buttons on your working BMW key fob. Press and hold the lock button until you see the electronic components inside the key fob turn on however the engine remains off. Install the new battery inside the key fob, and sync the key within 30 seconds after having synced the original key. Smart Keys are available in many cars today, including BMWs. They can be used to unlock and start a car without the traditional key. These keys have a built-in transponder that transmits a unique signal to the vehicle's immobilizer system, which prevents unauthorized key-cloning and starting. These keys are more expensive than standard key fobs, due to the fact that they require a higher level of technology and programming. Some BMW models come with a feature called Summon that allows you to summon your vehicle from parking spaces or garages by pressing a button on your key fob. This feature isn't offered on all models, however it's a useful feature that can save you from having a taxi arrive to pick up your car, or fighting an intruder to get it back. Start/Stop Button The latest BMW key has a push button built in that will turn on your car for you. This feature can save you time by avoiding the need to remove your keychain from your car. The starter/stop button isn't difficult to use on the BMW key fob replacement. The first step is to ensure the key fob is properly associated with your car. This can be done by following the steps in this guide. It is now time to set up the key fob to your BMW. The process may differ according to the type of key you own. This guide will explain how to program a key fob that displays on certain models of the present. However, older BMW models might require a visit our dealer for the key fob to be programmed. Check whether the key blade on the new key fob is working. You can test this by inserting it into the keyhole and pressing the lock/unlock buttons. If it works then the BMW iDrive system will ask you to assign a name on the key. You can then press the start/stop button to start your vehicle. Then, you'll need to schedule an appointment with Patrick BMW to program the new key fob. We will require a valid driver's license to confirm your identity, as well as an official copy of your vehicle's registration. This will allow us to determine the code needed for your key fob. You'll either have a standard key fob that doesn't require programming, or a key fob smart with a transponder integrated that requires more advanced technology. Once the key fob has been programmed, you are able to begin to use it for your daily commute on the roads of Decatur. If you lose your key fob, you can contact our dealership for a service which will disable the key fob in the system and prevent it from being used to unlock or start your vehicle. If you are concerned that your keys could be stolen this is a great solution to stop theft. Programming If your replacement BMW key fob comes with an upgraded battery, but isn't working as it should, you may have to reprogram it. The service staff at our dealership in San Diego can help walk you through the steps to do this. Begin by inserting your working key into the ignition. Turn it quickly five times from position zero to one. Next, take the key from the ignition and press the unlock button (the BMW logo) on the new key. Within 30 seconds, press the BMW logo three times. Finally press the unlock button and you should hear the doors automatically lock and unlock. The procedure for programming the replacement BMW key fob is similar to that for other BMW models, and can be completed in less than 30 minutes. After you've completed the process you can start your engine and use the new key to start your car. It's important to replace your BMW key battery frequently. You should do it once a year, or every month based on your lifestyle. Changing the key battery is easy and cheap. The BMW key battery comes in an standard size and can be found at many hardware stores, or even the parts department of local dealerships. The ownership of a BMW car is a symbol of status and it feels like you've arrived take a drive through Longmont in your BMW. However, BMW owners need to be aware that their luxurious vehicle can fail as any other. It is recommended to learn how to program the BMW remote control before you actually need it. Our service department at Princeton can show you how to reprogram your BMW X3. The first method is when you already have a key that works and you want to add a new one or the other if you are beginning from scratch and don't have an existing key.