How to Replace a BMW Key
The cost of replacing a BMW key can be expensive. BMW keys are high-tech, and need to be reprogrammed to function with the vehicle.
You can save money by purchasing a brand new BMW car key online, but you must locate a dealer who is specialized in car keys with good reviews. It is also recommended to visit the dealership to make sure your replacement key is properly programmed.
Smart Keys
Today, many of the latest BMW models come with an intelligent key system that lets you lock and unlock your vehicle by simply pressing a button on the steering wheel. Certain models also come with remote systems that allow you to start the engine and shut the windows and sunroof from the distance. These keys feature radio for locking / unlocking as well as infrared (IR) to communicate with the dashboard.
The IR circuit powers an infrared bridge bidirectional that transmits commands to and from the dashboard as well as to the receptacle inside the key. This allows the key to control the car from just a couple of meters away. The key is equipped with an RF coil which detects and transmits the remote signal for locking from the car to the dashboard.
These 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 prompts on your device. This will allow you to share the key digitally and it works for as long as your phone is powered up and is within Bluetooth range.
In contrast to older key fobs, which transmit the same frequency repeatedly (which could affect other models and makes using the same system, and could make it easier for tech-savvy thieves to steal vehicles) Modern smart keys broadcast a different encrypted signal every time they're used to open or close a door, or pop the trunk. The antennas in the vehicle respond by creating a similar frequency to identify the key and allow it to unlock or open it.

Smart key systems could be vulnerable to hacking however. A skilled professional could intercept the IR transmissions and gain access to your vehicle. Always carry a backup key, or leave your smart key at home when you are going to go out to eat or shop. If you do lose your keys, be sure you keep the VIN number of your BMW and a government ID in case you need to get an exchange from the dealer.
Key Fob Batteries
The BMW key fob provides convenience and security with the push of a single button. But, just like anything that relies on a battery the battery of the key fob can die-often at the worst possible time. Fortunately the replacement of a BMW key fob's battery is simple and quick.
To replace the battery in the key fob you must open the fob at the seam that joins its two halves. The backplate of the fob is held in place by a a notch which can be opened with an screwdriver with a flat blade or a finger. Insert a new button-cell battery into its place after taking off the backplate. The new battery will typically resemble a small coin with plus and minus signs printed on it. Insert the new battery into the fob in the same orientation that you did when inserting the old battery and then join the two halves.
After replacing the battery on the key fob Press each button to verify that it works as expected. Based on the model you have, you may need to re-sync the key fob with your vehicle, or follow other steps to ensure proper function. Check the owner's manual for your BMW for detailed instructions on how to re-sync the key fob.
A dead or weak battery in your key fob may reduce the range the signal can communicate with the vehicle, limiting its ability to lock or unlock the doors or trunk, or arm/disarm the alarm system. It is time to replace the battery if you discover that you must be closer to your vehicle to unlock the doors or start the engine.
It's easy to replace the battery on your key fob at home. After the battery has been replaced, it's important to test the key fob's functions by locking and unlocking the vehicle or placing it in the ignition. Then, you can reassemble the key fob and test again to ensure that it works correctly. Knowing when the key fob's batteries require replacement and how to replace them and how to start a car with a dead battery will help you enjoy all of BMW's convenient features.
Slant Shaped Key Batteries
If you're a BMW owner, then you enjoy the benefits of the keyless ignition and entry features. These features make driving your BMW much easier and could assist you in avoiding some common automotive problems. If you aren't paying attention to the indicators that your BMW keyfob battery is low, it could quickly run out.
If your BMW key fob dies, it can't communicate with the car computer to open the doors or even start the motor. Fortunately, the battery inside most BMW key fobs can be replaced cheaply. The process is easy and takes only a few moments. If you have an extra BMW key it's an ideal idea to keep it in your pocket to ensure that you can change the battery as soon as it runs out of power.
The most important thing to remember when replacing a BMW key fob battery is to use the right type of replacement battery. The smart key requires a CR2450 while the sleek slant-shaped slant-shaped Comfort Access fobs used in many F series models from 2011 to 2017, require a battery CR2032. Both types can be purchased at most auto shops and department stores at 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 coded by the car's manufacturer to ensure compatibility with the keyless entry and start system. These keys are more expensive and take longer to arrive than replacement versions. BimmerTech offers a convenient online ordering system for BMW replacement keys. This will save you time and money.
Some drivers prefer using smartphones as a "surrogate key" to start their BMW. With Bluetooth technology, your smartphone can connect to your BMW's keyless entry and start system. This is especially helpful during hot weather when you don't wish to carry an oversized BMW key around in your pocket.
Valet Key Batteries
Key fobs can be a useful tool, but you may sometimes run out of batteries. This can make it hard to lock your car and it can also prevent you from being able to turn on the engine and drive. It is simple to change the battery in the case of a BMW keyfob. The steps may differ slightly depending on the kind of key you have however, they're all very similar.
The newer slant-shaped batteries for key batteries are easy to replace through a simple steps. Simply press the small tab that releases the inside of the valet key, which is found on either the bottom or side of the fob. You can then make use of a flat screwdriver remove the access port that is hiding the battery. After you have removed the old battery you can replace it with a new one. After that, you can put it back together.
It isn't easy to replace a battery in an older diamond-shaped key with a rechargeable one. he has a good point aren't intended to be replaced with batteries, and could be damaged if you attempt to pry off the backplate. You can attempt to open it however, you'll need a professional to do the job. If you are looking to replace a battery that is old, it is recommended to contact a dealer to get it done by a professional.
BMW keys are available in a variety of different designs. Each key fob comes with its individual driver profile and can be connected to different drivers. This allows family members to share the same vehicle, while still being able customize 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. It is crucial to know this if you want your car to start once you press the buttons on your key fob. This will help you avoid frustration when the key isn't working properly, and it can also save you a lot of money since you're not required to pay for a service appointment at a dealership.