The Top Replace Bmw Key Gurus Do Three Things How to Replace a BMW Key

The cost of replacing a BMW key can be expensive. This is due to the fact that BMW keys are high-tech and require reprogramming in order to work with your vehicle.

Purchasing a new BMW key online can save you money, but it is crucial to find an online retailer that is specialized in car keys and has good reviews. It is also recommended to visit a dealer to ensure that your replacement is programmed correctly.

Smart Keys Keys

A lot of new BMW models come with the smart-key system that allows you to lock and unlock your car with just a click on the steering wheel. Some models also have remote systems that allow you to start the engine and close the sunroof and windows from a distance. These advanced keys make use of radio to lock / unlock and infrared to communicate with dashboard.

The IR circuit powers an infrared connection that sends and receives commands from and to the dashboard, and also to the receptacle inside the key. This allows the key to control the car from just a few meters away. The key is equipped with an RF coil that detects and transmits the remote signal for locking from the car to the dashboard.

These smart keys can also be used to store information such as mirror and power seat settings. To share access with someone, you need to connect the key with an iPhone and then follow the instructions on your device. This will enable you to provide them with a digital key that will work when the phone is turned on and is within Bluetooth range.

Contrary to older key fobs for cars that transmit the same frequency over and over (which could be affecting other makes and models utilizing the same system, not to mention make it easier for thieves with a tech background to steal cars), modern smart keys transmit a distinct encrypted signal each time they're used to open or close a door, or pop the trunk. The vehicle's embedded antennas then respond by generating a corresponding frequency to recognize the key and allow it to unlock or open it.

Smart key systems could be vulnerable to hacking, however. An experienced professional can be able to intercept IR transmissions and gain access to your car. Always carry a backup key, or leave your smart key at home if are going to eat out or shop. If you lose your keys, make sure you have the VIN number of your BMW and your government ID in case you need to obtain an exchange from the dealer.

Key Fob Batteries

The key fob is an essential element of the BMW driving experience, offering convenience and security at the press of one button. The battery of the key fob could also die, as with anything that is powered by a battery. This happens at the worst time. Fortunately, replacing the BMW key fob's battery is easy and quick.

Open the fob along the line which connects the two halves. The backplate of the fob is secured by a a notch which can be opened using a flat-bladed screwdriver or a finger. Install a new button cell battery in 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 in the same way as the old one, and then snap the fob's two halves together.

After replacing the battery on the key fob, press each button to verify that it is working as expected. Based on the model you have you may need to re-sync the key fob to your vehicle, or follow other steps to ensure proper operation. If you need to re-sync your key fob, consult the vehicle's owner manual for the specific instructions applicable to your BMW.

A weak or dead battery for the key fob can reduce the range of the signal that communicates with your vehicle, limiting its ability to lock and unlock the trunk and doors, or arm/disarm the alarm system. bmw series 1 key is time to replace your battery if find yourself needing to be closer to your vehicle to unlock the doors or start the engine.

It's simple to replace the battery inside your key fob at home. After replacing the battery, you should check the functionality of the keyfob by locking and unlocking your vehicle or placing it in the ignition. Reassemble the keyfob and test it again to confirm that it's working as intended. 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 without a battery that is dead will allow you to take advantage of all of BMW's convenient features.

Slant Shaped Key Batteries

BMW owners probably make the most of the keyless entry system and ignition. These conveniences make driving your BMW much easier and can assist you in avoiding some common car issues. If you aren't paying attention to the indicators that your BMW keyfob battery is low, it will eventually go out.

If your BMW key fob dies and cannot communicate with the computer in the vehicle to unlock the doors or start the motor. Fortunately, the battery inside the majority of BMW key fobs can be replaced inexpensively. The procedure is easy and typically takes only about a couple of minutes to complete. Keep an extra 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 use the right type of replacement battery. The smart key requires a CR2450, while the sleek slant-shaped and Comfort Access fobs used in many F series models from 2011 to 2017 require a CR2032 battery. Both are available at the majority of auto shops as in department stores for an affordable price.

Another option is to get a replacement key for your BMW from a locksmith or dealership. The keys are laser cut and digitized by the car manufacturers to ensure compatibility with keyless entry and start systems. The downside is that they are more expensive than the replacement keys and can take longer to arrive. If you're considering purchasing an alternative key for your BMW look into BimmerTech's online ordering system to save yourself time and money.

While the most common way to start your BMW is using the traditional key certain drivers prefer using their smartphones as a "surrogate" key. By using Bluetooth technology, your smartphone can connect to the keyless entry and start system. This can be especially useful on hot days when you don't wish to carry a heavy BMW key in your pocket.

Valet Key Batteries

A key fob can be an effective tool, however you might run out of batteries. This can make it difficult to lock your car and it could also prevent you from being able to turn on the engine and drive. Fortunately, replacing the BMW key fob battery isn't too difficult and can be done at home. The steps may vary depending on the type of key, but they're all pretty similar.

The latest slant-shaped key batteries are easy to replace through a a simple process. You simply need to press the small tab to release 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 remove the access port which is hiding the battery. After you've removed the old battery, you can replace it with a brand new one. After that, you can put it back together.

It can be difficult 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 and can be damaged by trying to pry off the back plate of the key. You can try to open it but you'll need a professional to do so. If you're looking to replace an old battery it is recommended to contact an authorized dealer to have it done properly.

BMW keys are available in different varieties. Each key fob has its own driver profile, and you are able to pair them with different drivers in the vehicle. This allows family members to share the same car but still have the ability to personalize their driving experience.


This article is most important because you need to know what type of key you own and how to replace that key. It is essential to be aware of this if you would like your car to start when you push the buttons on your key fob. This will save you from frustration if your key isn't working correctly, and it could also save you a significant amount of money if you are not obligated to pay for a service appointment at an auto dealership.