Replace Mini Key Fob Batteries
If your key fob comes with an internal battery that requires to be replaced, it's a relatively easy and cheap fix. Make sure you are aware that you may need to get it reprogrammed and activated.
Doing so will ensure that your car's Driver Profile is linked to the new key fob as well as all its settings including mirror position as well as seating position.
Battery
Modern key fobs offer superior convenience and functionality over a traditional car remote or flip key. This technology is not without costs the battery of your key fob will eventually wear out. If you wait until it's completely gone, you may be stranded without a way to unlock your car. To avoid this, you should replace the battery in your car key fob whenever you begin to notice signs of weakening power.
The LED light on a key fob may be used to test the battery voltage. If the buttons on the key fob fail to activate after pressing them then the battery is dead or nearly dead. The majority of key fobs make use of small coin-shaped batteries, referred to as CR2025 or CR2032. They can be purchased at auto parts stores and home improvement stores and general stores. You should buy the right type of battery because different fobs have different cell thicknesses.
A voltmeter can be used to determine the voltage of a fob battery. A good battery should have an voltmeter reading of 3 Volts. If your fob's battery has less than 2.8 Volts, it needs to be replaced. Change the battery of your fob is fairly simple and can be done at home using the right tools. You can find detailed instructions in your owner's manual or on YouTube. Be careful not to break any of the tabs made of plastic connecting the parts.
Chip
If your key fob won't come on when you press the lock/unlock button, it could need new batteries. You can purchase a new battery from an online retailer or hardware store. Most fob batteries are less than $10. Follow the instructions in the owner's manual, or on YouTube to replace the battery yourself.
Modern electronic keys are more practical and convenient than traditional metal keys. They also serve as a deterrent for car theft. When more information lose or break your key fob, it's important to disable it in order to make sure that it doesn't get into the improper hands.
A key fob has an embedded security chip that transmits a signal to your car's ignition system. This disables the standard immobiliser within your engine control unit which allows you to start your vehicle without a key. This feature can cost up to $300 for the key fob.
Certain newer models come with an electronic switchblade key that houses the metal part of the key's plastic. These keys can be copied by a locksmith for less than a metal key, but dealers must program the replacement in order to get the car started. Some dealers offer this service for free or at a minimal cost however, others might charge an additional fee. Online retailers sell pre-programmed keys fobs at a reasonable price. However the majority of these online retailers require proof of ownership from buyers prior to shipping their product.
Reprogramming
When your key fob stops functioning, the first thing that comes to your mind is that it's been damaged and needs to be replaced. However, before you go to the dealership there are some things to be sure to check first.
Modern electronic key fobs are more convenient and useful than traditional metal keys. They can open and close your car's doors, open the windows, summon your car, and even park it for you.
Replace the battery when your fob ceases to function properly. A dead battery can cause the functionality of your device to be affected or to cease working completely. Fortunately, replacing the battery is an easy fix. Simply remove the battery that was in use and replace it.
Another common reason for a malfunctioning fob is that it has lost its driver profile. This feature allows the car to detect which driver is using the fob and adjusts car's settings according to the user's profile. This feature is especially helpful for families with multiple drivers in your household.
It is possible to purchase an additional fob from a third-party company however, it's crucial to select a model that is compatible. The fob should have a special program inside that can be connected to the specific vehicle's immobiliser unit. While you can sometimes find replacement fobs online but they will not function as well as the original and could even damage your immobiliser unit.
Replacement
Key fobs today do much more than just unlock or lock the car. They also serve as a security measure and theft deterrent. They are extremely complicated pieces of equipment that are expensive to replace if lost or broken. While you can get an old metal key cut by a locksmith, modern smart keys must be programmed by an authorized dealer and can cost up to $200.
Fortunately, replacing the battery in the battery in your BMW key fob is easy. A new battery can be found at an auto parts retailer or an online retailer for less than $10. You'll need to remove the old battery and carefully open the case prior to inserting the new one. Refer to the owner's guide for instructions, as you do not want to cause damage to the case by forcing it to open.
Some of the most sophisticated key fobs will even roll down your windows, call or even auto-park your car. It's a good idea to assign Driver Profiles to an identical MINI keyfob that you intend to give to a partner or a different driver. This lets you set their preferred mirror settings such as seat and climate control and more.