2015 BMW 535i Key Fob Battery Replacement: A Comprehensive Guide

Replacing the key fob battery in your 2015 BMW 535i is a simple task that can save you time and money. This guide provides a step-by-step walkthrough, troubleshooting tips, and answers to frequently asked questions, ensuring you can get back on the road quickly. Learn how to change your 2015 BMW 535i key fob battery with ease.

Identifying the Need for a 2015 BMW 535i Key Fob Battery Replacement

Several signs indicate your key fob battery is dying. These include decreased remote range, requiring you to be closer to the car for it to unlock, intermittent functionality, where the key fob works sometimes but not others, and a dim or non-functioning key fob light. Ignoring these signs can eventually lead to complete key fob failure, leaving you stranded. Regularly checking and replacing your key fob battery is preventative maintenance that can avoid this inconvenience. bmw battery replacement for key fob This proactive approach can save you the hassle of dealing with a dead key fob at an inconvenient time.

Gathering the Necessary Tools for the Job

Before starting the battery replacement, gather the following: a new CR2032 battery (widely available at most stores), a small flat-head screwdriver or a plastic pry tool, and optionally, a small container to keep the screws organized. Having everything ready beforehand will make the process smoother and prevent losing any small parts.

Step-by-Step Guide to 2015 BMW 535i Key Fob Battery Replacement

1. Release the valet key: Locate the small button on the side of the key fob and press it to release the valet key.
2. Open the key fob casing: Insert the flat-head screwdriver or pry tool into the slot where the valet key was released. Gently pry open the key fob casing. Be careful not to damage the plastic.
3. Remove the old battery: Identify the CR2032 battery. Carefully pry it out using your screwdriver or pry tool. Avoid puncturing the battery.

Opening the casing of a BMW 535i key fob using a small flathead screwdriver

4. Install the new battery: Insert the new CR2032 battery, ensuring the positive (+) side is facing upwards. Press it firmly into place.
5. Close the key fob casing: Align the two halves of the key fob casing and press them together until they snap shut.
6. Reinsert the valet key: Slide the valet key back into its slot.

BMW 535i key fob with a newly installed CR2032 battery.

Troubleshooting Common Issues

• Key fob still not working: If the key fob doesn’t work after replacing the battery, try re-synchronizing it with your car. Consult your owner’s manual for the specific procedure for your 2015 BMW 535i.
• Key fob casing damaged: If you accidentally damage the casing during the process, you may need bmw fob key replacement.

Conclusion

Replacing the 2015 BMW 535i key fob battery is a straightforward process that anyone can do with the right tools and instructions. By following this guide, you can save time and money and avoid the inconvenience of a dead key fob. Regular battery replacement is a small investment that ensures the reliable operation of your key fob and keeps your BMW running smoothly.

FAQs

1. How often should I replace my key fob battery? Typically, every 2-3 years.
2. What type of battery does the 2015 BMW 535i key fob use? A CR2032 battery.
3. Can I replace the battery myself, or do I need to go to a dealer? You can easily replace it yourself.
4. What if my key fob still doesn’t work after replacing the battery? Try re-synchronizing the key fob with your car.
5. Where can I buy a replacement CR2032 battery? Most electronics stores, pharmacies, and online retailers.
6. How do I know if my key fob battery is low? Decreased range, intermittent functionality, and a dim key fob light are common indicators.
7. Is it safe to pry open the key fob casing? Yes, with a proper tool and gentle pressure.

Other common scenarios and questions

• Key Fob Not Detected: This can be a battery issue or a problem with the key fob receiver in the car.
• Key Fob Programming: If you have a new key fob, you’ll need to get it programmed to your specific vehicle.

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