How to Replace a BMW Key
Replacement of a BMW key is expensive. BMW keys are highly-technical, and must be reprogrammed to function with the vehicle.
A
new BMW key online will save you money, but it is important to find an online retailer that is specialized in car keys and has positive reviews. It is also recommended to visit a dealership to ensure that the replacement key is programmed correctly.
Smart Keys
Today, many new BMW models come with a smart key system that allows you to lock and unlock your vehicle by simply pressing one button on the steering wheel. Some models also have a remote system that allows you to start the engine and shut the sunroof and windows from a distance. These keys are advanced and use radios for locking and unlocking as well as infrared (IR) to communicate with the dashboard.
The IR circuit is a two-way infrared link that sends commands from and to the dashboard, and also to the receptacle in the key. The key is able to control the car at a distance of few metres. The key also features an RF coil that receives the remote lock signal of the car and transmits it to the dashboard.
These smart keys also store information such as mirror and power seat settings. If you wish to share access to a person with whom you share access all you need to do is pair the key with an iPhone and
BMW key follow the prompts on your device. This will the key to be shared with them that can be used when their phone is connected and within Bluetooth range.
Modern smart keys, unlike older car key fobs that broadcast the same frequency over and over again (which could impact cars that use the same system, making it easier for criminals with tech skills to steal cars), broadcast a different encrypted message each time they're used to open or close doors or open the trunk. The radio antennas in the vehicle respond by generating the corresponding frequency to identify the key, unlock it or open it.
Smart key systems may be vulnerable to hacking, however. A skilled professional can intercept IR transmissions and gain access to your car. To safeguard yourself, keep a backup key on hand or make sure to leave the smart keys at home whenever you go out to eat or out shopping. If you lose your keys, be sure to have your VIN number and government ID in case you require an replacement.
Key Fob Batteries
The key fob is an important element of the BMW driving experience, providing security and convenience at the press of a button. But, as with everything that relies on a battery the battery in the key fob will eventually die, often at the worst possible time. Fortunately the replacement of a BMW key fob battery is easy and quick.
Open the fob along the seam that joins the two halves. The fob's backplate is secured by a a notch which can be opened with a flat-bladed screwdriver or a finger. Place a brand new button-cell battery into its place after removing the backplate. The new battery is typically shaped as a small coin and has plus and minus symbols on it. Place the new battery inside the fob in the same way that you used to insert the old battery and then join the two halves.
After replacing the battery on the key fob, press each button to verify that it is working as expected. Depending on the model, you could have to re-sync your key fob to your vehicle, or take other steps to ensure it works properly. Check the owner's manual for your
bmw keys replacement for specific instructions on how to sync the key fob.
A weak or dead battery in your key fob may limit the range at which the signal communicates with the car, which can limit the ability to lock or open the trunk or doors, or arm/disarm your alarm system. If you notice that you are required to stand closer and closer to your car to unlock the key fob, or
BMW key unlock or start your engine, it's time to replace the battery.
It is easy to change the battery in your key fob at home. After replacing the battery, test the keyfob's functionality by locking and unlocking your vehicle or placing it in the ignition. Reassemble the keyfob and test it again to confirm that it is working properly. Knowing the time when the batteries of the key fob need to be replaced and how to replace them, and how to start a vehicle with a dead battery will help you enjoy all of BMW's useful features.
Slant Shaped Key Batteries
BMW owners will likely make good use of the keyless entry system and ignition. These features can make driving your BMW easier and even help you to avoid some common automotive issues. If you aren't paying attention to the indicators that your BMW keyfob battery is low, it will eventually run out.
If your BMW key fob is damaged, it can't communicate with the car computer to unlock the doors or even start the motor. The battery in most BMW keys can be easily replaced. The procedure is simple and takes only minutes. Keep a spare BMW in your pocket to charge the battery if it gets depleted.
When replacing the BMW keyfob battery, it is important to use the correct type of battery. A smart key requires the CR2450 battery, whereas the Comfort Access and sleek slant-shaped keys that are utilized in a number of F-series models from 2011 to 2017 will require the CR2032 battery. Both are available in most auto shops as well in department stores for a reasonable price.
Another option is to purchase an alternative key for your BMW from an authorized locksmith or dealer. The keys are laser-cut and encoded by the manufacturer of the vehicle to ensure compatibility with the keyless entry and start system. The disadvantage is that these keys are more expensive than the aftermarket versions and can take longer to arrive. If you're interested in getting an alternative key for your BMW look into BimmerTech's online ordering system to save time and money.
Some drivers prefer to use smartphones as a "surrogate key" to start their BMW. Your smartphone can connect with the keyless entry and start system using Bluetooth technology. This can be particularly useful during hot weather when you don't wish to carry an oversized
BMW key in your pocket.
Valet Key Batteries
Key fobs are very useful tool but at times, you may be unable to recharge your battery. This can make it difficult to secure your car and it can also prevent you from being able to turn on the engine and drive. Fortunately, replacing a BMW key fob battery is not difficult and can be done at home. The steps can differ based on the type of key, but they're quite similar.
It is simple to replace the newer slant shaped key batteries with an easy process. You just need to press the small tab that opens the inside of the valet key, which is found on either the side or bottom of the fob. You can then use a flat screwdriver to take out the access port that conceals the battery. After removing the old battery, you can replace it with a new one. Then put everything back together.
If you have an older diamond-shaped key that has rechargeable batteries, it can be more tricky to replace the battery. These keys are not designed to be replaced with batteries, and they can be damaged if you try to pry the backplate off. You can force it open but you'll most likely need a professional. It is recommended that if you have to replace the battery, you contact an auto dealer for help from a professional.
Another thing to think about is that there are many different kinds of BMW keys available. Each of these key fobs has its own driver profile, and you can connect them to different drivers in the vehicle. This allows family members to use the same vehicle but still have the ability to personalize their driving experience.
The most important thing to remember in this article is that you need to know the type of key you have and how to replace it.