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How to Replace a BMW Key The cost of replacing a BMW key can be costly. This is due to the fact that BMW keys are high-tech and require reprogramming in order to work with your car. You can save money by purchasing a new BMW car key online, but you must find a seller who specializes in car keys and has good reviews. It is also recommended that you visit the dealership to ensure the replacement key is properly programmed. Smart Keys Keys Many new BMW models are equipped with the smart-key system that lets you lock and unlock your vehicle by simply turning the steering wheel. Some models come with a feature that lets you start the engine from a distance and also remotely shut the windows and sunroof. These advanced keys make use of radio to lock and unlock, and infrared to connect with dashboard. The IR circuit powers a two-way infrared link that transmits commands from and to the dashboard, as well as to the receptacle in the key. The key is able to control the car even at a distance of few meters. The key is equipped with an RF coil which detects and transmits the remote lock signal from the car to the dashboard. The smart keys can also store information such as mirror and power seat settings. To give access to someone else, you need to connect the key to an iPhone and then follow the instructions on your device. This will enable you to provide them with a key that is working when their phone is connected and within Bluetooth range. Modern smart keys, in contrast to older key fobs for cars that transmit the same frequency continuously (which could affect cars using the same system and make it easier for criminals with tech skills to steal vehicles), broadcast a different encrypted message each time they're used to open or close the door or to open the trunk. bmw spare key replacement in the vehicle respond by creating the corresponding frequency to identify the key, unlock it or open it. Hacking is possible, but it isn't impossible. An experienced professional can be able to intercept IR transmissions and gain access to your car. To ensure your safety, keep a backup key or ensure you keep the smart key at home when you go out for a meal or out shopping. If you lose your keys, be sure to have the VIN number of your BMW and government ID available in case you have to request a replacement from a dealer. Key Fob Batteries The BMW key fob is a convenient device that offers security and convenience with the press of a single button. The battery of the key fob could also fail, just like anything that is powered by batteries. This happens at the most inconvenient time. It's easy to replace the BMW key fob batteries. Open the fob along the line that joins the two halves. The fob's backplate is held in place by a the notch that can be opened using a flat-bladed screwdriver or a finger. After the backplate has been removed, place a brand new button cell battery into its place. The new battery is usually formed as a small coin and has plus and minus symbols printed on it. Inject the new battery into the fob in the same orientation that you used to insert the old battery and then connect the two halves. After replacing the battery on the key fob Press each button to verify that it works as expected. Based on genuine bmw replacement key cost of your car you may need to re-sync the key fob to your vehicle or follow other steps to ensure that it functions properly. If you're required to re-sync your key fob make sure you consult the owner's manual for the specific instructions applicable to your BMW. A dead or weak battery on your key fob could reduce the range the signal communicates with the vehicle, limiting its ability to lock or open the trunk or doors, or arm or disarm your alarm system. If you're finding that you are required to stand closer and closer to your vehicle to unlock the key fob, or unlock or start the engine, it is likely time to replace the battery. Change the battery of the key fob is a simple task that can be completed at home. Once the battery is replaced it is important to verify the function of the key fob by locking and unlocking the vehicle, or putting it in the ignition. Reassemble the keyfob, and test it again to confirm that it is working properly. By understanding the time when a key fob's battery must be replaced and how to replace the battery, and how to start your vehicle with the battery of your key fob that is dead, you will be well on your way to taking advantage of the BMW's convenience and secure features. Slant Shaped Key Batteries If you're a BMW owner, then you enjoy the benefits of your car's keyless ignition and entry features. These features make driving your BMW much more comfortable, and they can even help you avoid some common automotive problems. If you're not aware of the signs that your BMW key fob battery is getting low, it can quickly run out of juice. When your BMW key fob is dead and is no longer in a position to communicate with the vehicle's computer in order to unlock or start the engine. The batteries in the majority of BMW keys can be easily replaced. The process is straightforward and usually takes just about a couple of minutes to complete. Keep a spare BMW in your pocket to replace the battery when it runs out. genuine bmw replacement key uk to remember when replacing a BMW key fob battery is to select the correct replacement battery. A smart key will require a CR2450 battery, while the Comfort Access and sleek slant-shaped fobs used in many F-series models from 2011 to 2017 will require the CR2032 battery. Both are available at many auto shops as well as department stores at a reasonable price. Another option is to get an alternative key for your BMW from the dealership or a locksmith. These keys are laser-cut, and coded by the car's manufacturer to ensure compatibility with the keyless entry and start system. The downside is that the keys are more expensive than the replacement keys and can take longer to arrive. If you're looking to purchase an additional key for your BMW, consider using BimmerTech's easy online ordering process to save time and money. While the most common way to start your BMW is using the traditional key, some drivers prefer to use their smartphones as an “surrogate” key. Your smartphone can connect to your BMW's keyless start and entry system using Bluetooth technology. This can be especially useful on hot days when you don't want to carry the weighty BMW key around in your pocket. Valet Key Batteries A key fob can be an excellent tool, but you might run out of batteries. This can make it hard to lock your car and it could also prevent you from turning on the engine and drive. It is easy to replace the battery in the case of a BMW keyfob. The steps can vary a little depending on what kind of key you own however they're fairly similar. The latest slant-shaped key batteries are easy to replace with simple steps. Press the small tab to release the valet key. This can be found on the bottom or side of the fob. You can then make use of a flat screwdriver take out the access port that is hiding the battery. After you've removed the old battery, you can replace it with a new one. After that, you can put it back together. If you have an older diamond-shaped key with rechargeable batteries it could be more difficult to replace the battery. Unlike the slant-shaped keys, they aren't designed to have the battery replaced. They could be damaged if you try to pry off the back plate of the key. You can try to force it open however, you'll need a professional to do so. It is advised that if you require to replace batteries, you call an auto dealer for help from a professional. Another thing to think about is the fact that there are a variety of different types of BMW keys available. Each of these key fobs has its own driver profile, and you can pair them with different drivers in the vehicle. This makes it easier for family members to share a vehicle and still be in a position to personalize their driving experience. This article is most important since you need to know what type of key you own and how to replace it. It is essential to be aware of this if you want your car to start when you push the buttons on the key fob. This can help you avoid frustration when the key is not working correctly, and can also save you a significant amount of money if you are not obligated to pay for a service appointment at the dealership.