BMW Battery Replacement - How to Do it Yourself

If your BMW key fob isn't responding to your lock and unlock buttons, or BMW series 1 key has stopped working altogether it may need a new battery. It's not difficult to replace the battery at home.

You simply need to locate the access port hidden inside the valet key, then remove it, and switch out the battery to a new one. After that, you need to register the new battery.

How to replace a battery

A car battery is among the most crucial components of any vehicle and will require replacement at least once during the lifetime of a driver. It's not difficult to replace the BMW battery on your own and you can even save money. The key to a successful DIY battery replacement is knowing the amount of work the job actually requires.

The first step is to identify the type of battery your BMW uses. There are three types of batteries, each with their own pros and cons. One of the most common is a lead-acid batteries, which is composed of sulfuric acid and lead. It generates electricity by an chemical reaction, and it recharges itself when you use your BMW. Other types of batteries that are used in BMWs are Gel or Absorbent Glass Mat (AGM). These batteries operate similarly but require different handling and installation.

It's time to replace your old battery when you know which one your BMW makes use of. Most auto parts stores will have a system that matches the BMW model and include the correct battery. This can save you time. You can also look up the owner's manual that will list the battery type needed for your model.

To replace the battery in a BMW key fob, shut off your vehicle and remove the metal blade of the valet key or a flat screwdriver that can access the lock cylinder. Remove the liner from the fob and locate the battery. After taking the battery off, clean the terminal connections, and then reinstall them with attention. Make sure to not put too much tension on the brackets because this could damage the battery case. Connect the positive terminal first, then the negative. Finally, reconnect the upholstery to its original position.

Registering the battery you have purchased is a good thing to do. This will inform the engine control module, also known as the DME and the DME know that you've got a new battery and it won't get confused with which one to charge. This will also reset the battery's statistics regarding age to prevent overcharging your brand new BMW battery.

How to Replace a CR2032 battery

It's frustrating to lose a key fob, but changing the battery is simple. It only takes a few minutes and can be done at home.

BMW key fobs make use of CR2032 watches batteries. They are more expensive than others, but they can be purchased at any convenience store or auto parts store. You can change the battery by taking off the old one and replacing it with the new one. Then you can put the fob back in. It's an easy process and you'll be able to start your vehicle again in the blink of an eye.

A dead battery is likely to be the reason for your BMW key fob not working when you're driving around Johns Creek. It's not difficult to fix!

First, you'll need press the small tab on the back of your BMW key fob to release the inside valet key. There will be a small port close to the battery once the key fob has been opened. You can use a flat screwdriver or similar tool to open the cover of the battery, and then replace it with a brand new one.

If you're looking for an all-new BMW or a used vehicle near Decatur, then be sure to check our inventory at Tulley BMW Nashua. Contact us today if have any questions regarding our vehicles. We're looking forward to helping you to find the perfect car for you!

How to replace a CR2450 battery

The BMW key fob is a crucial part of your driving experience. It provides security and convenience at the touch of the button. As time passes the battery in your BMW keyfob can weaken, and it will need to be replaced in order for it to work effectively. Understanding how to replace the BMW key fob can help you get on the road again swiftly and quickly.

There are many different kinds of BMW key fobs, the majority of them utilize the same type of battery, a CR2450 or CR2032 coin cell battery. This small, round battery is available in a majority of stores for less than $1 per unit. In addition to being readily available, CR2450 batteries are also very simple to install and take off from the key fob.

To replace the CR2450 battery in your BMW first, locate the tab on the key fob that opens the metal valet key inside the fob. Once the metal valet key is removed, search for an access port small on the front of the fob which covers the key battery cover. Using a flat screwdriver, remove the cover to expose the battery. After the old battery has been removed, replace it with a brand new one with the positive side facing up and then put it back together.

Once the new battery is installed Test the key fob to ensure that it is operating properly. Check with your BMW dealer if the key fob is not responding. Older BMW models might require the key fob and the vehicle to be re-synchronized following a change in the battery, however this isn't the norm for BMWs manufactured in recent years.

While it is possible to change the battery in an older BMW key fob by cutting the case and soldering in a new battery, this method is not recommended as it could damage the internal circuit board. Tulley BMW Nashua suggests that you follow the instructions in this guide for changing the CR2450 batteries on most BMW keyfobs. This simple task will take you just a few moments and get you back on the road.

How do I replace a CR2032 Side Indent Battery

The CR2032 side indent battery in the BMW series 1 key fob (and other models) is simple to replace. This battery is shaped like the shape of a nickel, and can be removed and put back into the slot with ease. Simply use your fingers to take out the old battery, then replace it with a brand new one, making sure that it match the reverse. You can also find replacement batteries in numerous auto parts stores and online.

If your BMW has a diamond key fob the procedure is slightly more difficult. It is not possible to replace the CR2016 battery since it's different from a CR2032, CR2025 or a CR2032. You can test whether it works by shimming a CR2016 using aluminum foil that is conductive. If it isn't working, you'll have to cut off the plastic fob and expose the battery. Then solder to a new battery.

The majority of bmw key 1 series key fobs come with a small access port which can be opened by using the edge of a metal blade from a different key or a flat screwdriver. If you don't own an edged blade made of metal, you can use the edge of pen. When you take off the cover and the CR2032 batteries will be visible.

It's important to note that the CR2032 side indent battery isn't designed to be serviced, and you aren't able to open the case. The battery is rechargeable and charges when you insert the ignition key.

It's important to have a backup key in case you break your key or lose it in a different location. If you need assistance programming your BMW remote or replacing the battery that is dead, contact us at Tulley BMW of Nashua. We have a team of dedicated experts who can assist you with any questions or concerns. We look forward to hearing from you!