BMW Battery Replacement - How to Do it Yourself
If your BMW key fob isn't working with your locks and unlock buttons or has stopped working altogether, it probably needs a new battery. It's easy to replace the battery on your own.
The battery can be replaced by simply taking the access port off the valet key. You must then register the new battery.
How to replace a battery
A car battery is among the most vital components of any vehicle and will have to be replaced at least once during the life of a driver. It's not hard to replace the BMW battery yourself, and you may even save money. Knowing how much work is required to replace batteries is the first step to an effective DIY project.
It is important to be aware of the type of battery your BMW uses. There are three different types, each of which has its own pros and cons when used. Lead-acid batteries are the most well-known because they contain sulfuric and lead. It generates electricity by a chemical reaction, and it recharges itself whenever you use your BMW. Other types of batteries used in BMWs are Gel or Absorbent Glass Mat (AGM). These batteries are similar in operation 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 retailers will have systems in place to match your BMW's make and model with the right battery, which will save you some time. You can also check your owner's guide which will include the battery type needed for your particular model.
To replace the battery on the BMW key fob, turn off your vehicle and take out the metal blade of the valet key or flat screwdriver to access the lock cylinder. Remove the liner from the fob and locate the battery. After removing the battery clean the terminal connections, and then reinstall them with careful. Do not tighten brackets too tight, as they could break the battery case. Connect the positive first before connecting the negative. Finally, connect the upholstery to its original position.
Registering your new battery is also an excellent thing to do. If you do this the engine control module (known as the DME) will be aware that the battery is installed and won't be confused about which one to charge. This will also reset the battery's age statistics to ensure that you don't overcharge your brand new BMW battery.
How to Replace the CR2032 Battery
A dead key fob is difficult, but fortunately, it's also quite simple to replace the battery. It only takes about a minute and can be done at home.
The key fobs found in BMW automobiles use CR2032 batteries that are a typical watch battery. They're a little more expensive than other types of batteries, but they are easily found at any convenience store or parts centre. When you've purchased an entirely new battery, you'll need to take the old one off and put in the new one, and put the cover of the fob back on. This is a straightforward process that will allow you to get your car running within a matter of minutes.
A dead battery could be the cause of your BMW key fob not working when you are driving around Johns Creek. It's a good thing that it's simple to fix!
The first step is to press the small tab on the back of your BMW key fob to unlock the valet key inside. There will be a small port near the battery after the key fob has been opened. You can make use of a flat screwdriver or similar tool to remove the cover of the battery, and then you can replace it with a new one.
If you're in the need of a new BMW or to buy a used car available near Decatur, be sure to check out our inventory at Tulley BMW of Nashua! Contact us today if have any questions about our vehicles. We're eager to help you find the ideal vehicle for your requirements!
How to Replace a CR2450 battery
The BMW key fob provides security and convenience at the touch of one button. However with time the battery in your BMW key fob will weaken and require replacement to ensure that it functions properly. Understanding how to replace the BMW key fob will assist you more info in getting back on the road again swiftly and easily.
While there are several different kinds of BMW key fobs however, they all utilize the same type of battery that is a CR2450 or CR2032 coin cell. This small, round battery is often found in shops and can be bought for less than a dollar for each unit. In addition to being easily accessible, CR2450 batteries are also very easy to install and remove from the key fob.
To replace the CR2450 batteries in your BMW look for the tab that opens the valet made of metal inside the fob. When the metal valet keys is removed, search for an access port small on the front of the fob which conceals the key battery cover. Using a flat screwdriver, remove the cover to reveal the battery. Insert 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 ensure it's working as intended. Consult your BMW dealer if the key fob is still not responding. Certain older BMW models require that the key fob is synchronized with the vehicle after changing the battery. However this isn't the case for BMWs made in recent years.
Although it is possible to replace the battery in an older BMW key fob by cutting open the case and soldering to a new battery, this is not recommended because it could damage the internal circuit board. Tulley BMW Nashua recommends that you follow the steps in this guide for changing the CR2450 batteries in the majority of BMW keyfobs. This simple task can be completed in just a few minutes and will help you get back on the road sooner.
How do I replace the CR2032 Side Indent Battery
The CR2032 side indent battery on the BMW series 1 key fob (and some other models) is easy to replace. The battery is shaped as a nickel, and it pops in and out of the slot easily. Simply use your fingers to take out the old battery, and then replace it with a brand new one, being sure to match the polarity. You can find replacement batteries at many auto parts stores, as well as on the internet.
If your BMW has an engraved key fob the procedure is slightly more complex. You cannot replace the CR2016 battery as it is different from a CR2032, CR2025 or a CR2032. You can check if it functions by shimming the CR2016 with aluminum foil that conducts electricity. If you are unable to get it to work, you will need to cut off the fob part of the plastic to expose the battery and then solder in the new one.
Most BMW key fobs have an access port that can be opened with the edge of a blade made of metal from a different key or a flat screwdriver. If you don't own an edged metal blade, you can use the edge of a pen. When you take off the cover, the CR2032 batteries are clearly visible.
It's important to know that the CR2032 side indent battery isn't designed to be serviced, and you can't open the case. This battery is rechargeable and charges when the key is inserted in the ignition.
It's essential to have an extra key in case you break your key or lose it somewhere. Contact us at Tulley BMW Nashua if you need help programming your BMW remote, or replacing a dead cell. We have a group of dedicated experts who will assist you with any questions or concerns. We are looking forward to hearing from you!