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Replacing a BMW Key Replacing a BMW key is a process that can be made easier with the right details. You'll require a valid ID number as well as proof of ownership the keycode, along with the model year and type. To program a new key, you must first close your doors and windows, insert the working key into the ignition, turn it to one position, then back to position zero, then remove it. Keys damaged or lost Most BMW models come with smart keys that can lock and unlock your vehicle at the push of a button. Like any other remote key fob these advanced keys can also experience wear and tear from frequent use and will require replacement every now and then. Based on your BMW model the key may have a physical key inside that inserts into the ignition or is powered by an internal battery. If your key fob isn't functioning correctly, it could be due to a low or dead battery. Our expert parts specialists will assist you in determining if your battery needs replacing. BMW key fobs today provide a variety of functions, from standard remote locking and unlocking to Comfort Access, or a full feature Display Key with touchscreen on newer cars. You can easily replace a BMW fob, regardless of what your needs are. If your BMW features Comfort Access, the new key will need to be programmed in order to function properly. You can do this by scheduling an appointment with a service technician and bringing all your keys replacements. The technician will be capable of programming your new key to the current functions of your vehicle and sync it with your smartphone. You may also have to get your new key fob reset if it gets stolen or lost. This will require an appointment at a dealer and could cost additional money. No matter what kind of BMW you own it's inevitable that you'll have to replace the battery in your key. Use a thin object such as an incredibly small screwdriver or coin to open the key fob out at the edge. Take out the battery. You can then insert the new CR2032 battery and close the key fob securely. If you're looking for an alternative key, be wary by used keys on eBay or other sites. These used fobs may not be compatible with your BMW and could result in many issues. It is recommended to purchase an alternative key from the dealer you are dealing with to avoid problems. They will be able to provide you with a new, authentic keys that has been prepared to match your vehicle's VIN. Key Fob Issues A key fob can be used for more than just unlocking your car in Marietta. It can also enable remote start and many other functions. Key fobs can be affected by issues that stop it from functioning properly. The positive side is that most of these issues are easily identified and corrected. A dead battery is the most common cause of your BMW key fob not being in a position to lock or unlock your vehicle. If this is the problem, you can replace the battery to make your key fob work again. Another issue is the change in the rolling code sequence transmitted by your key fob. This is a simple problem to fix since you can usually resync the key fob by using the key sync process. This will reset your key fob's position within the rolling code sequence, and the system should then recognize your key again. Physical damage to your BMW keyfob may cause it to stop communicating with the system. This could be due to a cracked case, or internal components that have been damaged. A BMW dealership or certified technician may need to identify the issue. Many of the latest BMW models can be connected with multiple key fobs which allows family members to drive in their own vehicle and have their own keys. These fobs also permit each driver to alter their vehicle settings, like the position of the seat and radio presets to suit their preferences. However, it's important to keep in mind that each individual driver is assigned a unique profile that can only be activated with a specific key fob. Most modern BMW models are equipped with a key fob which can remotely start the engine with the press of the button. Older BMW models, on the other hand, don't offer this feature and have a standard key fob that can unlock the doors but not start the engine. It is possible to add remote start capability to your BMW by using an aftermarket device or by installing a software upgrade. Dead Batteries A BMW's electrical system is complicated, which makes it difficult to replace batteries. It requires adhering to the exact procedures. In the absence of this, it could cause a variety of problems that could include damaged or dead batteries and a sluggish engine. A dead battery may signal that there is a problem with the ignition system. This could be due to various issues, including an inoperable switch or a battery that's not properly connected to your vehicle's electrical system. Regardless of the issue the cause, this kind of issue typically can't be fixed by simply replacing a key or jumper cables. Some people try to replace the BMW Battery at home. This could be risky. The intricate nature of the car's electrical system, which includes the IBS (Integrated Battery Safety), makes it critical to know how to do this safely and in a safe manner. Contacting a professional who can handle the task is the best method to accomplish this. The service will verify the new battery and reset the computer and remove the check engine light. This will allow the battery to charge more efficiently, and stop overcharging, which could harm it as well as the electrical system of the car. The BMW computer will also register the battery, set an the battery's capacity at 80, and store current odometer readings while eliminating charge level information. If you have a newer BMW you are likely to find that it uses keys that have a built-in transponder. This is a small chip that sends a distinct signal to the immobilizer system of the car and prevents unauthorized starting. Dealers and locksmiths have the necessary knowledge, equipment, and security protocols to ensure that your new BMW key is secure and operates properly. When it is about BMW keys, there are several different types, ranging from standard keys to advanced Display Keys. Display Keys require specialized tools in order to reprogram and detach the chip. This is a complex and lengthy process which requires the attention of a skilled professional. Lost or Stolen keys The BMW key fob is more than simply unlock the doors and turn on the engine. It has many other 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. If a problem arises it could affect driving safety and comfort. Fortunately, you can usually resolve BMW fob issues without replacing the key fob itself. Sometimes the key fob's battery must be replaced. If you've lost your keys or they've been stolen, you can still utilize the internal key blade to start and enter your car manually, as long as you have a spare. bmw keys as the G11 7 Series, the G12 5 Series and the X5 M40i include the unique Display Key with touchscreen, which goes beyond traditional key fobs. Rather than using Bluetooth technology it uses NFC technology. Display Key uses NFC to connect with your smartphone. It then replaces the key fob when you need to access or start your vehicle. To connect a new device download the BMW Connected app, add your vehicle and follow the instructions to configure the Digital Key. Once the Digital Key is in use, you can invite guests to join via email in. The guest will need to install the app and sign in using their BMW ID, verify their fingerprint and accept the invitation before they are able to gain access to your car. You can temporarily replace the key fob in case you're stuck. Simply pair it with another device that is compatible. Make sure that the other device is running iOS 13.6 or higher, the BMW Connected App installed, and that the Digital Key is activated. If you're in a bind and are unable to locate the original key, you can always call a locksmith to make a duplicate for you. You may need to pay for the new keyfob. For security reasons, BMW requires proof that you are the owner of the vehicle when requesting a replacement key fob, like registration, title or purchase paperwork. For this reason, you should never purchase a used fob from eBay or other marketplaces on the internet.