How to Replace a BMW Car Key

BMW Digital Key allows owners to share their access with family and friends. This feature is accessible to iPhone and Android users through the BMW Connected App.

The procedure for replacing the small battery inside your BMW key fob is simple. Find out how to do it on The Changing Lanes, your weekly source for everything BMW.

How do you replace the key fob

A lost or damaged key fob isn't just a minor inconvenience. You're not able to use keyless entry if you own a car that has Comfort Access or smart keys. Therefore, it's essential to know how to replace a BMW key fob with a fresh one to avoid being stuck on the side of the road.

Fortunately, it's easy to learn how to replace the BMW key fob at home. In most cases, you'll only have to replace the battery. These tiny, rechargeable batteries (CR2450 or 2032 coin cell) can be purchased at many hardware stores and big retailers for about $10 each. There are also videos on YouTube and many owner's guides provide instructions on how to replace the battery.

If you're looking to save a little money, you can attempt to replace the battery yourself. Be careful not to damage the metal blade of your key. After removing the old battery, carefully replace it with the new one and replace the cover. If you're not confident in replacing the battery, you can seek out a dealer or a locksmith who is certified to do it.

The dealer is your most expensive option, however they're likely the only ones that have authentic OEM replacement parts. Additionally, they have the equipment and knowledge needed to reprogram a replacement key fob.

If your car is equipped with an ignition key with a display, a dealership may be the only alternative. These advanced key fobs include features that require a special key to program, such as keyless entry, or the ability to remotely start the car.


Additionally the key fobs have to be programmed with the vehicle's specific VIN. Fobs purchased used from eBay or other online retailers won't work. However, you can look to see if your warranty covers a replacement or if you have roadside assistance coverage that covers it. You can also check whether your insurance policy covers the cost of replacement or offers discounts if you purchase one. If they do, purchase a spare unit and learn how to programme it.

How to Replace a Batterie

BMWs are popular with drivers who want luxury and power. Like every vehicle, they require to be taken care of and maintained properly, which includes replacing the battery with a new one when required. Although a battery might appear to be the last thing on a driver's mind when it comes to car maintenance however, it's actually a simple do-it-yourself project. Some drivers will bring their vehicle to a professional to have the battery replaced however, if you're a pro at what you're doing you can change your BMW battery yourself.

Before you begin, make sure that you have all the tools, such as a toolkit, a car jack, and a battery replacement. Find the battery in the trunk of your BMW, which is usually in the trunk floor or beneath a liner. Unlock the trunk and take off the upholstery that covers the battery. Remove the negative battery terminal with the 10mm wrench and move it on the side. The next step is to connect the positive terminal. It is important not to overtighten the case of the battery.

Many older BMW models use the traditional round key fob that features a small access port. To replace lost bmw keys on these models, first you need to remove the valet keys by pressing the button. Next look for the small groove and turn the screwdriver clockwise to take off the cover. After removing the metal key blade, you can place a new CR2032 battery into the slot. After placing the key fob back together, you can start your car by pushing the button once more.

If your car won't start after installing a new battery, this could be an indication that the anti-theft device has been activated and hindering it from operating. This could happen if the new key isn't paired with the immobilizer or hasn't been registered to the vehicle. It could be a sign of an issue with the ignition switch for the engine. If this is the case, you'll need to contact the local BMW dealership to request a repair estimate.

How to replace a transponder

BMW cars are renowned for their quality and reliability. However, they may still face issues. One of the most frequent problems is the loss of your BMW key and this can be an enormous hassle if you don't know how to replace it. There are a few easy things you can do to get your car back on its wheels without too much stress.

It is first necessary to determine the type of BMW key you have. The majority of BMWs have transponders, which are chips in the key that send an electronic code to the car computer when you insert the key. This code is used to authorize the vehicle and allow it to start. If your BMW has a chip, then only a locksmith or dealer with special tools can make you new keys.

If your BMW keys have an indentation at the side, it's an old-style BMW key and doesn't use a transponder. These keys are less expensive and can be replaced by a standard key bought at the local hardware store. The key is powered by a battery which needs to be changed periodically.

The latest BMW keys are equipped with a transponder, which means they'll require replacement by a locksmith or a dealer. You can purchase an online replacement from a vendor that is specialized in BMW keys, but you'll have to pay to have it programmed to your specific car. A reputable locksmith or dealer will be able to do this quickly and affordably.

The steps are identical whether you wish to replace your BMW key fob battery or fix a broken BMW keyfob. You'll first need to remove the fob and then find the tiny hole close to the keyhole inside the trim. Once you've found it, you'll be able to pry the trim panel off and expose the keyhole. You'll then be able replace the key fob's battery, which is usually an CR2032 cell.

BMW is one of the most sought-after luxury vehicles on the market. It's a great car to travel between Chino Hills and Corona, and it comes with a variety of comfort features for drivers. However, just like any vehicle, it can have issues. Contact Sure Lock & Key if you require assistance with your BMW.

How to Replace a Remote

As your BMW vehicle becomes more sophisticated it will require more features from its fob. You'll likely require replacing your battery or fob at some moment. It is important to follow the correct procedure to avoid your vehicle from being disabled or locked.

The new BMW key fob must be programmed before it can unlock the vehicle or start the engine. Insert the working fob in the ignition and turn the key until it is in position 1 without triggering the engine. After 30 seconds, remove the key from position 1. Insert the new fob into the ignition, and turn it to another position. Don't start the engine. Repeat step three for each additional BMW key fob you wish to connect within 30 seconds after the initial sync.

Certain BMW key fobs also have keys that are removable at the bottom of the body, which could be used as an ordinary key in emergency situations. Some individuals prefer to keep their key fob inside an enclosure that blocks signals, which will prevent anyone from using an amplifier to listen for an identifying signal broadcast by the fob, and then use it to clone the key.

Another useful feature is Remote Control Parking, which lets owners manage their car's parking movements from inside the vehicle with the touch of a button on the Display Key. This feature is particularly useful for parking in tricky spots or in an outdoor driveway or garage with a unique shape.

Lastly, the latest BMW models are also equipped with Digital Key Plus, which lets drivers lock, unlock, and start their car using an iPhone or Apple Watch, eliminating the need for a physical key fob altogether. This feature is compatible with the 2021 model and later X1 and iX1 and makes use of Ultra Wideband technology to detect the proximity of your car.

To make use of this feature, your device will need to have at least iOS version 11.x and running the most recent version of BMW Connected Drive. If you encounter any problems, please contact your local BMW Dealer or Sure Lock & Key.