BMW Battery Replacement - How to Do it Yourself

If your BMW keyfob isn't responding to the lock or unlock buttons, or if it isn't working at all and you're in need of a new battery. It's simple to replace the battery on your own.

The battery can be replaced by simply disconnecting the access port from the valet key. Then you have to make sure that the new battery is registered.

How do you replace a battery

A car battery is one of the most vital components of any vehicle and will require replacement at least once throughout a driver's lifetime. It's not hard to replace the BMW battery on your own and you can even save money. The most important thing to do a successful DIY battery replacement is knowing the amount of work is required for the task.

It is crucial to know the type of battery your BMW uses. There are three types, each of which has its own pros and cons when being used. One of the most common is a lead-acid battery which contains sulfuric acid and lead. It produces electricity through a chemical reaction and then recharges itself using your BMW. Other battery types in BMWs include Gel or Absorbent Glass Mat. These batteries have similar operation but require a different installation and handling.

Once you've got a good idea of the battery your BMW is using and you know the battery's name, it's time to replace the old one. The majority of auto parts stores have systems that match the BMW model and make with the right battery. This can save you time. You can also refer to your owner's guide, which should list the type of battery needed for your model.

To change the battery of a BMW keyfob, turn the vehicle off and take the blade made of metal from the valet key. You can also employ a flat screwdriver, or a valet key to access the lock-cylinder. Then, take off the fob's liner and locate the battery. After taking the batteries out clean the terminal connectors, then carefully reinstall. Don't tighten brackets too much, as they could break the battery case. Connect the positive terminal prior to the negative. Then, reconnect the upholstery to its normal location.

Registering your new battery is also an excellent idea to do. This will allow the engine control module, also referred to as the DME, know that you've got a new battery and it won't be confused with which one to charge. This will also reset the battery's age data to ensure that you don't overcharge your new BMW battery.

How do you replace the CR2032 Battery

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

The key fobs that are used in BMW vehicles are powered by CR2032 batteries that are a typical watch battery. They're more expensive than other kinds of batteries, but they are easily found at any convenience retailer or parts store. You can change the battery by taking off the old one and replacing it with a new one. Then, put the fob back in. It's a simple process and you'll be able start your vehicle again in minutes.

If you've been driving your BMW around the Johns Creek area, and you suddenly realize that your key fob isn't functioning, it's likely because of a dead battery. It's not difficult to repair!

First, you'll need press the small tab on the back of your BMW key fob to release the valet key that is inside. You'll notice a small port near the battery once the key fob has been opened. The cover for the battery can be removed using the flat-headed screwdriver or a similar tool.

If you're looking to buy a new BMW or a pre-owned vehicle near Decatur Be sure to check our inventory at Tulley BMW Nashua. If you have any questions about our vehicles, don't hesitate to contact us today. We're eager to help you find the ideal vehicle for your needs!

How to Replace the CR2450 Battery

The BMW key fob offers convenience and security with the push of the button. However with time, the battery inside your BMW key fob can become weak and need replacement to continue working correctly. Knowing how to replace the BMW key fob will help you get to the road again quickly and easily.

There are many different types of BMW key fobs however, they all utilize the same type of battery, a CR2450 or CR2032 coin cell battery. The 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 batteries in your BMW find the tab that releases the metal valet inside the fob. Once the metal valet key is removed, search for a small access port on the front of the fob that covers the key battery cover. Remove the cover with a flat-headed screwdriver, revealing the battery. Install a new battery with the positive side up and then reassemble your key fob.

Test the key fob after the battery has been replaced to make sure it's working as intended. Contact your BMW dealer if your key fob is not responding. Older BMW models may require the key fob and vehicle to be re-synchronized after changing the battery, but this is not the norm for BMWs made in recent years.

While it is possible to replace the battery on an older BMW key fob by removing the case and soldering in a new battery, this procedure is not recommended as it could damage the internal circuit board. Instead Tulley BMW of Nashua suggests following the steps in this guide to replace the CR2450 battery on the majority of BMW key fobs. This simple task will take only a few minutes and return you to the road.

How to replace the CR2032 Side Indent Battery

The CR2032 side indent battery on the BMW series 1 key fob (and some other models) is simple to replace. The battery is shaped as a nickel and can be removed and put back into the slot with ease. Replace the battery you have used before with the new one using your fingers. Be sure to make sure that the polarity matches. You can also find replacement batteries in various auto parts stores as well as online.

The process is a bit different in the event that your BMW includes a "diamond key fob". The CR2016 battery inside this key isn't the same as a CR2032 or a CR2025 however, and you are unable to open the case to replace it. You can test whether it works by shimming a CR2016 with some aluminum foil that is conductive. If you are unable to get it to work, you'll need to cut the fob plastic part to expose the battery, and then put into a new one.

The small access port found on many BMW key fobs can be opened with the edge of another key's metal blade or a flat-headed screwdriver. If you don't have a metal blade you can try using the tip of a pencil. Once you have removed the cover, you will be able to see the CR2032 battery inside.

It's important to note that the CR2032 side indent battery wasn't designed to be serviced and you can't open the case. This battery is rechargeable and will charge when the key is placed in the ignition.

It's essential to have an extra key in case you accidentally break your fob or lose it. Contact us at Tulley bmw key programmer BMW Nashua if you need help programming your BMW remote, or if you need to replace a dead cell. We have a team of dedicated experts who can assist you with any questions or concerns. We look forward having a conversation with you!