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How to Replace a BMW Key The cost of replacing a BMW key can be costly. BMW keys are highly-technical, and require reprogramming to function with the vehicle. A new BMW key online could save you money, however it is essential to choose a vendor that specializes in keys for cars and has excellent reviews. It is also recommended that you visit a dealership to ensure that the replacement key is programmed correctly. Smart Keys Today, many of the latest BMW cars come with an intelligent key system that allows you to lock and unlock your car with a simple click of an icon on the steering wheel. In addition, some models come with a feature that allows you to start the engine from a distance and also remotely close the windows and the sunroof. These advanced keys use radio to lock and unlock, and infrared to connect with the dashboard. The IR circuit powers a bidirectional infrared bridge which sends commands from and to the dashboard, and also to the receptacle in the key. The key can control the car from a distance of just a few meters. The key is equipped with an RF coil which picks up and transmits the remote signal to lock the car to the dashboard. The smart keys can also store information such as power seat and mirror settings. If you'd like to share access to a person with whom you share access, all you need to do is pair the key to an iPhone and follow the instructions on your device. This will allow you to provide them with an electronic key that works for as long as your phone is turned on and within Bluetooth range. Modern smart keys, as opposed to older car keys that broadcast the same frequency over and over again (which could affect cars using the same system, making it easier for criminals with tech skills to take cars) They transmit a distinct encrypted message each time they are used to open or close a door or pop out the trunk. The antennas in the vehicle respond by emitting a specific frequency to recognize the key and allow it to unlock or open it. Smart key systems could be vulnerable to hacking, however. G28 Car Keys Solutions can snoop on IR transmissions to gain access to your car. Always keep a spare key in your vehicle, or leave your smart key at home if plan to go out to eat or shop. If you do lose your keys, be sure to have the VIN number of your BMW and a government ID in case you have to get an exchange from the dealer. Key Fob Batteries The key fob is a crucial feature of the BMW driving experience, providing convenience and security by pressing one button. However, like everything that relies on a battery the battery in the key fob is prone to dying at the worst possible time. It's easy to replace BMW key fob's battery. Open the fob along the seam that joins the two halves. The fob's backplate is usually held in place by a notch which can be opened with the fingers or a flat-blade screwdriver. Once the backplate is removed, place a brand new button cell battery into the slot. The new battery will usually look like a small coin and will have plus and minus marks printed on it. The new battery should be placed in the same way as the previous one, then snap the fob's two halves back together. After replacing the battery After replacing the battery, test it by pressing each of the fob's buttons to ensure they function as expected. Depending on your model, you may need to re-sync the key fob to your vehicle or follow other steps to ensure that it functions properly. Refer to the owner's guide of your BMW for detailed instructions on how to sync the key fob. A weak or dead battery in your key fob may reduce the range that the signal communicates with the car, which can limit the ability to lock or unlock the doors or trunk, or arm/disarm your alarm system. If you're finding that you have to stand closer and closer to your car to access the key fob to unlock or start the engine, it's time to replace the battery. Changing the key fob's battery is a simple job that can be accomplished at home. After replacing the battery, test the function of the keyfob by locking and unlocking your vehicle or placing it in the ignition. Then, reassemble the key fob, and then test it again to make sure it functions properly. If you know the moment when a key fob's batteries must be replaced and how to replace the battery, and also how to start your vehicle with an empty battery from the key fob, you will be well on your way to enjoying all of your BMW's convenient and secure features. Slant Shaped Key Batteries BMW owners probably make good use of the keyless entry system as well as ignition. These features can make driving your BMW easier and even help you avoid common car problems. If you're not aware of the signs that your BMW key fob battery is dwindling it could quickly become depleted of power. If your BMW key fob is damaged and cannot communicate with the vehicle computer to open the doors or even start the motor. Fortunately, the battery in the majority of BMW key fobs can be replaced inexpensively. The process is straightforward and usually takes just an hour to complete. If you have an extra BMW key it's a good idea to keep it in your pocket to ensure that you can change the battery if it runs out of power. When replacing the BMW keyfob battery, it is important to choose the correct type of battery. A smart key requires a CR2450 battery, while the Comfort Access and sleek slant-shaped fobs utilized in a number of F-series models between 2011 and 2017 will require the CR2032 battery. Both are available at most auto shops as well in department stores for a reasonable price. Another option is to get a replacement key for your BMW from the dealership or a locksmith. These keys are laser-cut and encoded by the manufacturer of the vehicle to ensure compatibility with the keyless entry and start system. The drawback is that the keys are more expensive than aftermarket versions and can take longer to arrive. BimmerTech offers a convenient online ordering system for BMW keys replacement. This will save you time and money. While the most commonly used method to start your BMW is to use the traditional key, some drivers prefer using their smartphones as a “surrogate” key. Your smartphone can connect to your BMW's keyless entry and start system via Bluetooth technology. This is particularly useful on hot summer days in the summer, when you don't want to carry a heavy BMW Key in your pocket. Valet Key Batteries Key fobs are a very useful tool, but sometimes you may run out of battery power. This can make it difficult to lock your car and also stop you from turning on the engine and drive. Fortunately, replacing the BMW key fob battery isn't difficult and can be done at home. The steps may differ slightly depending on the type of key you have however, they're all very similar. It is simple to replace the more modern slant shaped key batteries with an easy process. Simply press the small tab that releases the inside of the valet key located on the bottom or side of the fob. Then, you can employ a flat screwdriver to remove the access port which is hidden by the battery. After removing the old battery you can replace it with a new one. Then put everything back together. If you own an older, diamond-shaped key that uses a rechargeable battery It can be difficult to replace the battery. Unlike the slant-shaped keys, they are not intended to have the battery replaced. They can be damaged if you try to pry off the back plate of the key. You can force it open, but you'll most likely need an expert. It is advised that if you require to replace a battery, you contact an auto dealer for help from a professional. Another thing to take into consideration is the fact that there are a variety of different kinds of BMW keys available. Each key fob comes with its individual driver profile and can be connected with different drivers. This allows family members to share the same car but still have the ability to personalize their driving experience. The most important part of this article is to know what kind of key you have and the best way to replace it. This is vital if want to ensure that your car can start when you press the buttons on your fob. You will save yourself frustration and money by not needing to pay for an appointment at the dealership when your key doesn't perform as expected.