How to Replace a BMW Key
The
replacement key for bmw of a BMW key is costly. BMW keys are high-tech, and need to be reprogrammed in order to work with the vehicle.
You can save money by purchasing a new BMW car key on the internet, but you need to find a vendor who is an expert in car keys that has excellent reviews. It is also recommended to visit the dealership to ensure your replacement key is programmed correctly.
Smart Keys
Today, many new BMW models come with an intelligent key system that allows you to lock and unlock your vehicle with just a click of an icon on the steering wheel. Some models also come with a system that lets you start the engine from a distance and also remotely shut the windows and the sunroof. These advanced keys use radio to lock or unlock and infrared to communicate with the dashboard.
The IR circuit is the source of a bidirectional infrared bridge which sends commands to and from the dashboard and to the receptacle within the key. This allows the key to control the car from a few meters away. The key also features an RF coil that receives the car's remote lock signal and transmits it to the dashboard.
These smart keys also have the ability to save information such as mirror and power seat settings. If you'd like to share access with a friend all you have to do is connect the key with an iPhone and follow the instructions on your device. This will provide them with a key that can be used for as long as their device is in Bluetooth range.
In contrast to older key fobs, which transmit the same frequency over and over (which could be affecting other models and makes that use the same system, not to mention makes it easier for tech-savvy thieves to take vehicles) Modern smart keys broadcast a different encrypted signal every time they are used to open or close a door, or open the trunk. The radio antennas in the vehicle respond by creating the corresponding frequency to identify the key, lock it or open it.
Smart key systems could be vulnerable to hacking however. An experienced professional can be able to take over IR transmissions and gain access to your vehicle. Always carry a backup key, or leave your smart key at home if are planning to go out to eat or shop. If you do lose your keys, make sure you have the VIN number of your BMW and government ID available in case you need to get an exchange from the dealer.
Key Fob Batteries
The BMW key fob offers security and convenience with the press of a single button. But, as with everything that relies on a battery, the key fob's battery will eventually die, often at the most inconvenient time. Fortunately, replacing a BMW key fob's battery is easy and quick.
To replace the key fob's battery you must open the fob at the seam that connects its two halves. The fob's backplate is usually fixed by a notch which can be opened using a finger or a screwdriver with a flat blade. After the backplate has been removed, insert a new button cell battery into the slot. The new battery is typically shaped as a small coin and has plus and minus symbols printed 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 whether it functions as you expect. Depending on the model, you could have to re-sync your key fob to your vehicle or take other steps to ensure it is working correctly. If you need to sync your key fob again, consult the vehicle's owner manual for the specific instructions applicable to your BMW.
A weak or dead key fob battery could reduce the range of the signal that communicates with your car, limiting its ability to lock and unlock the doors and trunk and
bmw key fobs arm/disarm the alarm system. If you are noticing that you are required to stand closer and closer to your car 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. After replacing the battery it is crucial to test the key fob's functions by locking and unlocking the vehicle, or inserting it into the ignition. Reassemble the keyfob and then test it again to confirm that it's functioning properly. If you know the time when a key fob's battery must be replaced and how to replace the battery, and also how to start your car with a an empty battery from the key fob then you'll be on your way to taking advantage of all of your BMW's convenient and secure features.
Slant Shaped Key Batteries
If you're a BMW owner, you likely take a lot of advantage of the keyless ignition and keyless entry features. These features make driving your BMW much easier and can help you avoid some common automotive problems. If you don't pay attentively to the indications that your BMW keyfob battery is low, it will eventually be out of charge.
When your BMW key fob is damaged it's not in a position to communicate with the computer in your vehicle to unlock or start the engine. Fortunately, the battery in most
BMW key fobs can be replaced relatively cost-effectively. The process is easy and takes only about a minute. If you have an extra BMW key it's recommended to keep it in your pocket so you can change the battery if it is depleted of power.
When replacing a BMW keyfob battery, it's important to use the correct type of battery. The smart key requires a CR2450 as do the sleek slant-shaped, slant-shaped Comfort Access fobs that were used in a variety of F series models from 2011 until 2017 require a battery CR2032. Both types can be purchased at most auto shops and department stores for fairly cheap prices.
A locksmith or BMW dealership can also supply you with a replacement BMW key. These keys are laser cut and coded by vehicle manufacturers to ensure compatibility with keyless entry and start systems. The downside is that these keys are more expensive than the replacement keys and can take longer to arrive. If you're looking to purchase an alternative key for your BMW look into 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 a "surrogate" key. By using Bluetooth technology smartphones can connect to your BMW's keyless entry and start system. This is especially helpful during hot days in the summer, when you don't want to carry around a bulky BMW Key in your pocket.
Valet Key Batteries
A key fob is a very useful tool however, sometimes you might be unable to recharge your battery. This could make it difficult to lock your car and also prevent you from being in a position to start the engine. Fortunately, changing a BMW key fob battery isn't too difficult and can be done at home. The steps will differ based on the type of key, however they're all fairly similar.
The newer slant-shaped key batteries are simple to replace using a a simple process. You just need to press the small tab that opens the inside of the valet key, located on the bottom or side of the fob. You can then use a flat screwdriver to remove the access port that conceals the battery. After the old battery has been removed, you can install the new one and put it back together.
It isn't easy to replace a battery on the older diamond-shaped keys with rechargeable one. Contrary to the slant-shaped key, these are not designed to have the battery replaced. They can be damaged when trying to pry off the back plate of the key. You can force it open but you'll likely need to hire a professional. If you're looking to replace a battery that is old, it is recommended to contact a dealer to get it done professionally.
BMW keys are available in a variety of different designs.