How to Replace a BMW Key
The cost of replacing the BMW key could be expensive. BMW keys are high-tech and need to be reprogrammed in order to work with the vehicle.
The purchase of a new BMW key online could save you money, however it is crucial to find a seller that specializes in keys for cars and has excellent reviews. It is also recommended that you visit the dealership to ensure that your new key is programmed correctly.
Smart Keys
Today, many new BMW vehicles come standard with a smart key system that allows you to lock and unlock your vehicle with a simple click of an icon on the steering wheel. Additionally, certain models come with a feature that allows you to start the engine from a distance and also remotely shut the windows and open the sunroof. These advanced keys use radio for locking or unlocking and infrared (IR) to communicate with the dashboard.
The IR circuit is an infrared connection that sends and receives commands from the dashboard, and also to the receptacle in the key. This allows the key to control the car from just a couple of 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 store information, such as the power seat and mirror settings. To share access with someone else, you simply need to pair the key with an iPhone and then follow the directions on your device. This will allow you to share the key digitally and it will work as long as the phone is running and is within Bluetooth range.
In contrast to older key fobs, which transmit the same frequency over and over (which could be affecting other makes and models utilizing the same system, and could making it easier for tech-savvy thieves to steal cars), modern smart keys broadcast a different encrypted signal every time they're used to open or close a door or open the trunk. The car's antennas respond by generating a corresponding frequency in order to recognize the key and allow it to unlock or open it.
Hacking is possible however, it is not impossible. An experienced professional can be able to intercept IR transmissions to gain access to your vehicle. Always keep a spare key in your vehicle, or leave your smart key at home if are going to eat out or shop. If you lose your keys, make sure to have your VIN number and ID from the government in case you require a replacement.
Key Fob Batteries
The BMW key fob provides security and convenience at 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 worst possible time. It's easy to replace the BMW key fob's battery.

To replace the key fob's battery open the fob in the seam that connects its two halves. The fob's backplate is secured by a a notch which can be opened using the flat-bladed screwdriver or finger. Insert a new button-cell battery in its place after taking off the backplate. The new battery is typically designed to look like a small coin with plus and minus symbols printed on it. Insert the new battery in the same way as the previous one, then snap the fob's two halves together.
After replacing the battery Test it by pressing each of the fob's buttons to ensure they function as you expect. Based on learn the facts here now , you could have to re-sync your key fob to your vehicle or take additional steps to ensure it works 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 on your key fob could reduce the range it communicates with your car, which can limit the capability to lock or unlock the trunk or doors or arm or disarm your alarm system. If you notice that you have to stand closer and closer to your vehicle to unlock the key fob, or unlock or start your engine, it's time to replace the battery.
The battery replacement for the key fob is a simple task that can be accomplished at home. After the battery has been replaced it is important to test the functions of the key fob by locking and unlocking the vehicle or inserting it into the ignition. Reassemble the keyfob, and test it again to make sure that it's functioning properly. If you know the time when a key fob's battery must be replaced and knowing how to replace the battery, and knowing how to start your car with a a dead key fob battery then you'll be on your way to enjoying the BMW's convenient and secure features.
Slant Shaped Key Batteries
If you're a BMW owner, you probably take a lot of advantage of your car's keyless entry and ignition features. These conveniences can make driving your BMW easier and even help you avoid common issues with your car. If you're not attentive to the indicators that your BMW key fob battery is depleting it will soon become depleted of power.
If your BMW key fob is damaged and cannot communicate with the vehicle computer to unlock the doors or even start the motor. The battery in most BMW keys can be replaced. The process is simple and takes only a few moments. Keep a spare BMW in your pocket to charge the battery if it gets depleted.
The most important thing to keep in mind when changing a BMW key fob battery is to select the right type of replacement battery. A smart key requires the CR2450 battery, whereas the Comfort Access and sleek slant-shaped fobs that are utilized in a number of F-series models from 2011 to 2017 will require a CR2032 battery. Both are available in the majority of auto shops as in department stores for affordable prices.
Another option is to get a replacement key for your BMW from the dealership or a locksmith. The keys are laser-cut and coded by vehicle manufacturers to ensure compatibility with keyless entry and starting systems. They are more expensive and take longer to arrive than aftermarket versions. BimmerTech offers a convenient online ordering system for BMW replacement keys. This will save you time and money.
Some drivers prefer to use a smartphone as an "surrogate key" to start their BMW. Smartphones can be connected to the keyless entry and start system by using Bluetooth technology. This is especially helpful during hot weather when you don't want carry an oversized BMW key in your pocket.
Valet Key Batteries
A key fob is a extremely useful tool however, sometimes you might run out of battery power. This could make it difficult to lock your car and stop you from being able to start the engine. Fortunately, changing a BMW key fob battery isn't too difficult and can be done at home. The steps can differ based on the kind of key, but they're fairly similar.
It is simple to replace the more modern slant shaped key batteries with an easy procedure. Press the small tab to unlock the valet key. It can be found on the bottom or side of the fob. You can then use a flat screwdriver to remove the access port that is hidden by the battery. After you have removed the old battery, you can replace it with a brand new one. After that, you can put it back together.
If you have an older diamond-shaped key with rechargeable batteries, it can be more tricky to replace the battery. Contrary to the slant-shaped key, they aren't designed to have the battery replaced. They could be damaged when trying to remove the back plate of the key. You can attempt to open it but you'll need a professional to do the job. It is recommended that if you need to replace the battery, you contact 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 key fob comes with its individual driver profile and can be connected with different drivers. This allows family members to share a vehicle while being capable of adjusting their driving experience.
The most important part of this article is that you need to know which type of key you have and how to replace it. This is crucial if you want to ensure that your car will be able to start when you press the buttons on your fob. This will save you from frustration when the key isn't functioning correctly, and can also save you lots of money if you're not forced to make a repair appointment at the dealership.