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Replacing a BMW Key Replacing a BMW key is a process that is easier with the right information. You will need to have a valid personal identification number and proof of ownership, the key code, and the year of manufacture and make of your vehicle. To program a new key, you must first close your doors and windows and then insert the key you want to program into the ignition, rotate it to one position, then back to zero, and finally remove it. Lost or Damaged Keys Most BMW models come with a smart key, which can lock, unlock and even start your vehicle by pressing one button. These advanced keys, like any remote key fob, may wear out over time and need to be replaced. Based on the BMW model you have the key could be powered by batteries or the key itself that is put into the ignition. If your key fob isn't functioning correctly, it could be due to a low or dead battery. Our expert parts specialists will help you determine if your battery needs replacing. Today's BMW key fobs offer an ever-growing number of functions, ranging from standard remote locking and unlocking to Comfort Access or a full-featured Display Key with a touchscreen on the latest models. It is easy to replace a BMW fob, regardless of what your needs are. If your BMW comes with Comfort Access, it will require programming to work with the new key to perform as it should. This can be done by making an appointment with a technician and bringing in your replacement keys. The technician can program your new key to function with the functions of your car, and then connect it with your smartphone. If your key fob is lost or stolen, you could require reprogramming it. This will require an appointment with a dealership and could cost additional cost. Regardless of what type of BMW you drive you'll need to replace your key battery. Use a thin object such as an incredibly small screwdriver or coin to break the key fob out at the edge. Remove the battery. bmw replacement key The Key Lab can then put in a new CR2032 battery and then close the key fob securely. If you're in search of a replacement key, be wary by used fobs on eBay or other sites. These used fobs aren't compatible with your BMW and can cause a range of problems. You should purchase the replacement key from the dealer you are dealing with to avoid problems. They will be able to provide you with a genuine, new key that is designed to match the VIN of your vehicle. Key Fob Issues A key fob can be used for more than unlocking your car in Marietta. It can also be used to enable remote start and a variety of other functions. However keys may be affected by issues that stop it from working as intended, and the good news is that the majority of these problems are easy to diagnose and fix. A dead battery is the most common reason for your BMW keyfob not being capable of locking or unlocking your vehicle. If this happens then simply replace the battery and your key fob will work again. A loss of position is another issue. This happens when your key fob sends an unidirectional code sequence. Fortunately, this is a lot easier to troubleshoot, as you can often resync your key fob by performing the key sync procedure. This will reset the key fob's position within the rolling code. The system should recognize your key. Physical damage to your BMW keyfob may cause it to cease communicating with the system. This could be due to a cracked case, or a damaged internal component. A BMW dealership or certified technician could be required to identify the issue. Many of the latest BMW models can be linked simultaneously with multiple key fobs allowing family members to drive their cars of choice and have their own keys. Key fobs allow drivers to modify the settings of their vehicle, such as seats and radio presets, among others to suit their personal preferences. It is important to remember that each driver has a unique profile that can only be activated using the key fob of that specific. The majority of modern BMW models are equipped with a key fob which can remotely start the engine at the push of a button. The older BMW models do not have this feature and only come with basic key fobs that can unlock the doors, but not the engine. The good part is that it's possible to include a remote-start function to your BMW by using an aftermarket accessory or installing a software update. Dead Batteries The electrical system of a BMW is complex, making it difficult to replace batteries. The procedure requires that you follow precise procedures. In the absence of this, it could cause a myriad of problems including a damaged or dead battery and a non-responsive engine. A dead battery could suggest that the ignition system is experiencing issues. There are a variety of reasons that can cause this, including an ignition switch that isn't working properly or a dead battery not connected properly to the electrical system of the vehicle. Regardless of the issue the cause, this kind of issue isn't usually fixed by simply replacing a key or using jumper cables. Some people attempt to change a BMW battery at home, but it can be very dangerous. It is essential to be aware of the IBS (Integrated Battery Safety) and the complexity of the electrical system inside the vehicle. The best way to do this is to contact an expert who can manage the replacement process. The service will reset the computer and clear the check-engine light. This will help the battery charge more efficiently and will prevent overcharging that could damage it and the electrical system of the vehicle. The BMW computer will also register the battery, establish the reference point at 80% capacity and save current odometer readings while deleting charge level data. You may have a BMW with a transponder embedded into the key. This is tiny chip that sends an unique signal to the immobilizer system of the vehicle and helps prevent unauthorized starting. Dealers and locksmiths have the knowledge, equipment, and security protocols to make sure your new BMW key is safe and works correctly. There are a variety of BMW keys. These range from standard keys to advanced Display Keys. Keys that have Display Keys Display Key will require special tools to take out and reprogram the chip. This is a difficult and lengthy process that requires the attention of an experienced professional. Lost or Stolen keys The key fob on your BMW can do more than open the doors and start the engine – it has a number of additional functions. Acceleration, braking, drive position change, minimum steering correction, electromechanical parking brake activation/deactivation and the operation of the rear windows are just a few of these. When a problem occurs it could affect safety and ease of use. Fortunately, you can usually solve BMW fob issues without replacing the key fob itself. For example, sometimes the key fob battery simply requires replacement. If you lose your keys or stolen, you can still manually start your vehicle by using the internal key blade as long as you have a spare. Newer BMW models such as the G11 7 Series, the G12 5 Series and the X5 M40i feature the innovative Display Key with touchscreen, which is a step beyond traditional key fobs. Display Key pairs with your smartphone via NFC instead of Bluetooth, and then serves as a key fob that can start or access your vehicle. To connect a new device, download the BMW Connected app, add your vehicle and follow instructions to configure the Digital Key. Once the Digital Key is activated you can invite guests via email to join in. The guest must install the application and sign in using their BMW ID, confirm their fingerprint and accept the invitation before they are able to gain access to your car. If you're in a tight spot you can connect the key fob to another compatible mobile device and use it temporarily to replace it. Make sure the other device runs an version of iOS 13.6 or later, and also has the BMW Connected app installed and the Digital Key activated. You can always contact an expert locksmith to make you a duplicate if you are in a hurry and cannot locate your original key. You might have to purchase the new keyfob. To protect yourself, BMW requires proof that you're the owner of the vehicle before they can issue the replacement of a key fob like registration and title documents or purchase papers. This is why you should never purchase an old fob on eBay or other online marketplaces.