How to Replace a BMW Key
The cost of replacing a BMW key can be expensive. This is because BMW keys are highly-technical and require reprogramming to function with your vehicle.
Purchasing a new BMW key online can save you money, however it is crucial to find a vendor that specializes in car keys and has positive reviews. It is also recommended that you visit a dealer to ensure that your new key is programmed correctly.
Smart Keys
Nowadays, a lot of new BMW models come with an intelligent key system that allows you to lock and unlock your car with a simple click of a button on the steering wheel. Additionally, certain models come with a feature that lets you start the engine from a distance, and also remotely shut the windows and open the sunroof. These advanced keys make use of radio to lock / unlock, and infrared to connect with the dashboard.
The IR circuit is the source of a bidirectional infrared bridge which sends commands from and to the dashboard as well as to the receptacle inside the key. The key can control the car even at a distance of few metres. The key is equipped with an RF coil that picks up and transmits the remote signal to lock the car to the dashboard.
These smart keys also have the ability to store information such as power seat and mirror settings. If you want to share access to a person with whom you share access, all you need to do is connect the key to an iPhone and follow the prompts on your device. This will enable you to provide them with a key that can be used as long as their phone is on and within Bluetooth range.
In contrast to older key fobs that transmit the same frequency over and over (which could impact other makes and models utilizing the same system, and could make it easier for tech-savvy thieves to take 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 car's antennas respond by emitting a specific frequency to identify the key and unlock or open it.
Smart key systems can still 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 you are going to go out to eat or shop. If you lose your keys, be sure you have the VIN number of your BMW and a government ID in case you need to get a replacement from the dealer.
Key Fob Batteries
The BMW key fob offers convenience and security with the press of a single button. But, just like anything that is dependent 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 you must open the fob at the seam that joins its two halves. The fob's backplate is held in place by a an opening that can be opened with an screwdriver with a flat blade or a finger. Place a brand new button-cell battery after taking off the backplate. The new battery will typically resemble a small coin and have plus and minus symbols printed on it. The new battery should be placed in the same orientation as the old one, and then snap the fob's two halves back together.
After replacing the battery on the key fob make sure to press each button to test that it is working as expected. Depending on the model, you might have to re-sync your key fob to your vehicle or take additional steps to make sure it is working correctly. If you're required to re-sync your key fob make sure you consult the owner's manual for detailed instructions specific to your BMW.
A dead or weak battery in your key fob may reduce the range it communicates with your car, which can limit the ability to lock or unlock the trunk or doors, or arm/disarm your alarm system. If you are noticing that you need to step 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.
It's simple to replace the battery in your key fob at home. After replacing the battery, you should test the function of the keyfob by locking and unlocking your vehicle, or placing it in the ignition. After that, reassemble the key fob, and then test it again to make sure it functions correctly. Knowing when the key fob's batteries require replacement and how to replace them, and how to start a vehicle with a dead battery will help you enjoy all of BMW's features.
Slant Shaped Key Batteries
BMW owners are likely to make the most of the keyless entry system as well as ignition. These conveniences can make driving your BMW more enjoyable and can help you to avoid some common issues with your car. If you don't pay attention to the signs that your BMW keyfob battery is low, it may be out of charge.
When your BMW key fob is dead, it's no longer in a position to communicate with the vehicle's computer in order to unlock or start the engine. The batteries that are found in many BMW keys can be replaced easily. The procedure is easy and typically takes only an hour to complete. Keep an extra BMW in your pocket to recharge the battery if it gets depleted.
The most important thing to keep in mind when changing a BMW key fob battery is to choose the right type of replacement battery. A smart key will require an CR2450 battery. Likewise, the Comfort Access and sleek slant-shaped fobs that are used in a variety of F-series models between 2011 and 2017 will require the CR2032 battery. Both types are available at most auto shops as well in department stores for affordable prices.
A locksmith or BMW dealership can also provide you with the replacement BMW key. The keys are laser-cut and coded by vehicle manufacturers to ensure compatibility with keyless entry and start systems. The disadvantage is that they are more expensive than aftermarket versions and can take longer to arrive. If you're looking to purchase a replacement key for your BMW you should consider BimmerTech's easy online ordering process to save yourself time and money.
While the most common way to start your BMW is to use the traditional key, some drivers prefer to use their smartphones as an "surrogate" key. bmw key fobs can be connected to your BMW's keyless start and entry system using Bluetooth technology. This is especially helpful on hot days when you don't want 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 lock your car and it can also prevent you from turning on the engine and drive. Fortunately, changing the BMW key fob battery isn't difficult and can be done at home. The steps can vary slightly based on the type of key you have, but they are all very similar.
The newer slant-shaped batteries for key batteries are easy to replace through a an easy process. Press the small tab to release the valet key. This can be found 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 put in another one and put it back together.
It can be difficult to replace a battery on the older diamond-shaped keys with a rechargeable one. These keys aren't designed to be replaced with batteries, and could be damaged if you try to pry off the backplate. You can try to force it open however, you'll require the assistance of a professional for doing this. If you need 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. Each key fob comes with its own driver profile and can be connected to various drivers. This makes it simpler for family members to share a car 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 own and how to replace it. It is important to be aware of this if you would like your car to start when you press the buttons on the key fob. This will help you avoid frustration if the key isn't working correctly, and can also save you lots of money if you're not forced to make a repair appointment at the dealership.