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Looking to change the battery for your BMW key? We’ve got you covered! In this article, we will walk you through the simple steps to replace the battery in your BMW key fob. Don’t worry, it’s easier than you might think. By following our guide, you’ll be able to keep your key functioning smoothly and avoid any inconvenience. So, let’s dive right in and learn how to change the battery for your BMW key.

Step-by-Step Guide: Changing BMW Key Battery in 2021

How to Change the Battery for BMW Key

The BMW key fob is an essential part of your vehicle, allowing you to lock and unlock the doors, start the engine, and perform other functions remotely. To ensure that your key fob functions smoothly, it’s important to replace its battery when it becomes weak or dies. In this guide, we’ll walk you through the step-by-step process of changing the battery for your BMW key.

Step 1: Gather the Required Tools

Before you begin the battery replacement process, gather the necessary tools. You’ll need:

  • A new battery: Check the user manual or the old battery for the correct battery type, typically a CR2032 lithium battery.
  • A small flathead screwdriver: This will help you open the key fob’s casing.
  • Tape or a small container: It’s useful to have something to hold the key fob components securely while you work.

Step 2: Locate the Key Fob Battery Slot

To access the battery, you need to open the casing of your BMW key fob. The battery slot is usually located on the back of the key fob, identified by a small indentation or slot. Use the small flathead screwdriver to carefully pry open the casing.

Step 3: Remove the Old Battery

Once you’ve opened the key fob casing, you’ll see the old battery. Use your finger or the screwdriver to gently lift the battery out of its slot. Be cautious not to damage any other components while doing so.

Step 4: Insert the New Battery

Take the new battery and align it properly with the contacts in the battery slot. Make sure the positive (+) side of the battery is facing up. Press the battery down firmly until it fits securely in place.

Step 5: Close the Key Fob Casing

Now that the new battery is in place, carefully align the key fob casing and press the halves together. Ensure that the casing is fully closed and secure.

Step 6: Test the Key Fob

With the battery replaced and the casing closed, it’s time to test your key fob. Stand near your vehicle and press the buttons on the key fob to check if they are functioning correctly. If everything is working as expected, you’ve successfully changed the battery for your BMW key.

Troubleshooting Tips

If you encounter any issues after replacing the battery, here are a few troubleshooting tips:

  • If the key fob buttons are not responding: Try pressing the buttons multiple times or from different angles to ensure proper contact between the buttons and the internal circuit board.
  • If the key fob is not working at all: Double-check the battery installation to ensure it is correctly oriented. If the issue persists, consider replacing the battery with a new one.
  • If the key fob still doesn’t work: It’s possible that there may be a more significant issue with the key fob or the vehicle’s system. In this case, contact your local BMW dealership or a professional locksmith for further assistance.

Changing the battery for your BMW key is a straightforward process that you can easily do yourself. By following the steps outlined in this guide, you can ensure that your key fob remains functional and reliable. Remember to use the proper tools and handle the key fob with care to avoid any damage. If you have any doubts or encounter difficulties, it’s always best to seek professional help.

Frequently Asked Questions

How do I change the battery in my BMW key?

To change the battery in your BMW key, follow the steps below:

What type of battery does a BMW key use?

A BMW key typically uses a CR2032 battery, which is widely available and can be found at most electronic stores.

Where is the battery located in a BMW key?

The battery in a BMW key is located inside the key fob. It can be accessed by using a small screwdriver to open the key fob.

Do I need any special tools to change the battery in my BMW key?

No, you do not need any special tools to change the battery in your BMW key. A small screwdriver is typically all that is required.

How often should I replace the battery in my BMW key?

The battery in your BMW key should be replaced every 1-2 years, or when you notice a decrease in the key’s range or responsiveness.

Is it necessary to reprogram the key after changing the battery?

In most cases, there is no need to reprogram the key after changing the battery. However, if you experience any issues with the key’s functionality, you may need to consult your BMW dealership for further assistance.

Final Thoughts

To change the battery for your BMW key, follow these simple steps. First, locate the small indentation on your key fob and use a small flathead screwdriver to gently pry it open. Next, remove the old battery and replace it with a new one of the same type (usually a CR2032). Finally, close the key fob back together, making sure it snaps securely. By following these instructions, you can easily change the battery for your BMW key without any hassle. Remember to always have a spare battery on hand in case of emergencies.