10 Replace Bmw Key Tricks All Pros Recommend
How to Replace a BMW Key
The replacement of a BMW key is costly. BMW keys are high-tech, and must be reprogrammed in order to work with the vehicle.
Purchasing a new BMW key online will save you money, however it is essential to choose an online retailer that is specialized in keys for cars and has excellent reviews. It is also recommended to visit the dealership to ensure that your new key is properly programmed.
Smart Keys
Today, many new BMW vehicles come standard with a smart key system that allows you to lock and unlock your car with just a click of one button on the steering wheel. Some models also feature remotes that allow you to start the engine and close the sunroof and windows from the distance. These advanced keys use radio to lock and unlock and infrared technology to communicate with the dashboard.
The IR circuit is powered by a two-way infrared link that sends commands from and to the dashboard, and also to the receptacle inside the key. This lets the key control the car from 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.
G28 Car Keys have the ability to save information such as power seat and mirror settings. If you wish to share access with a friend, all you need to do is connect the key with an iPhone and follow the instructions on your device. This will permit you to give them an electronic key that can be used for as long as your phone is running and within Bluetooth range.
Modern smart keys, in contrast to older key fobs for cars that transmit the same frequency repeatedly (which could harm cars using the same system and make it easier for criminals with tech skills to steal cars), broadcast a different encrypted message each time they are used to open or close a door or pop out the trunk. The antennas in the vehicle respond by creating a similar frequency to recognize the key and allow it to unlock or open it.
Smart key systems may be vulnerable to hacking, however. An experienced professional can be able to take over IR transmissions and gain access to your vehicle. To safeguard yourself, keep a backup key or ensure that you leave the smart keys at home when you go out to eat or shopping. If you do lose your keys, be sure you have the VIN number of your BMW and your government ID in case you have to obtain an exchange from the dealer.
Key Fob Batteries
The key fob is a crucial feature of the BMW driving experience, providing convenience and security with the push of a button. But, just like anything that is dependent on a battery the battery of the key fob can die-often at the most inconvenient time. Fortunately, replacing a BMW key fob battery is quick and easy.
Open the fob at the seam that joins the two halves. The fob's backplate is held in place by a the notch that can be opened using a flat-bladed screwdriver or a finger. Once the backplate is removed, place a brand new button cell battery into the slot. The new battery is typically shaped 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 back together.
After replacing the battery, test it by pressing the buttons on the fob to make sure they function as expected. Depending on your model you may need to re-sync the key fob to your vehicle, or follow other steps to ensure proper operation. Check the owner's manual for your BMW for specific instructions on how to re-sync the key fob.
A weak or dead battery on your key fob could limit the range at which the signal can communicate with the car, which can limit the ability to lock or unlock the trunk or doors, or arm/disarm the alarm system. If you're finding that you have to stand closer and closer to your vehicle to access the key fob to unlock or start your engine, it's time to replace the battery.
Change the battery of the key fob is a simple task that can be accomplished at home. After the battery has been replaced, it's important to verify the function of the key fob by locking and unlocking the vehicle or putting it in the ignition. Then, reassemble the key fob, and then test it again to ensure that it works correctly. Knowing the time when the batteries of the key fob need to be changed, how to replace them, and how to start a vehicle without a battery that is dead will enable you to make the most of BMW's convenient features.
Slant Shaped Key Batteries
BMW owners probably benefit from the keyless entry system and ignition. These conveniences can make driving your BMW more enjoyable and can help you avoid common automotive issues. If you aren't paying attentively to the indications that your BMW keyfob battery is low, it could quickly run out.
When your BMW key fob is damaged it's not able 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 process is easy and takes just about a minute. If you have a spare BMW key, it's an ideal idea to keep it in your pocket so you can swap the battery as soon as it's exhausted.
When replacing the BMW keyfob battery, it's important to choose the correct kind of battery. The smart key requires a CR2450, as do the sleek slant-shaped, slant-shaped Comfort Access fobs used in many F series models from 2011 until 2017 require a battery CR2032. Both are available at most department stores and auto shops at reasonable prices.
A locksmith or BMW dealership can also provide you with an alternative BMW key. These keys are laser cut and coded by vehicle manufacturers to ensure compatibility with keyless entry and starting systems. The disadvantage is that the keys 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 convenient online ordering process to save yourself time and money.

Some drivers prefer using a smartphone as a "surrogate key" to start their BMW. Your smartphone can connect with your BMW's keyless start and entry system using Bluetooth technology. This can be especially useful during hot weather when you don't wish to carry an oversized BMW key in your pocket.
Valet Key Batteries
Key fobs are a extremely useful tool however, sometimes you might be unable to recharge your battery. This can make it hard to lock your car and it can also prevent you from turning on the engine and drive. Luckily, replacing the BMW key fob battery isn't too difficult and can be done at home. The steps may vary depending on the kind of key, but they're fairly similar.
The newer slant-shaped batteries for key batteries are simple to replace using a simple steps. 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. The battery can be accessed by using a flat screwdriver. Once the old battery is removed, you can put in another one and put everything back together.
It can be a challenge to replace a battery in the older diamond-shaped keys with rechargeable ones. These keys aren't intended to be replaced with a battery, and can be damaged if you try to pry the backplate off. You can force it open, but you'll probably need the help of a professional. If you need to replace an old battery it is recommended that you contact a dealership to get it done professionally.
Another thing to consider is that there are different types of BMW keys to choose from. Each key fob comes with its individual driver profile and can be linked to different drivers. This allows family members to share a vehicle, while still being able to customize their driving experience.
This is the most important part because you need to be aware of the type of key you own and how to replace it. This is vital if want to ensure that your car can start when you press the buttons on your fob. This can help you avoid frustration when the key isn't working correctly, and can also save you a lot of money if you are not required to pay for a service appointment at a dealership.