Replacing the battery in your BMW 335i key fob is a simple task that can save you time and money. This guide will walk you through the process step-by-step, covering everything from identifying the correct battery type to programming your key fob afterward. We’ll also address common issues and provide helpful tips for a smooth battery replacement experience.
Knowing how to change your BMW 335i key fob battery yourself can be incredibly useful. It prevents you from being stranded with a dead key fob and avoids the cost of a dealership visit. This guide covers all model years of the 335i, so whether you have a 2007, 2009, or 2010 model, you’ll find the information you need. Even if your key fob isn’t working correctly, a simple battery replacement might be the solution. 2010 bmw 335i key fob battery replacement
What Type of Battery Does a BMW 335i Key Fob Use?
Most BMW 335i key fobs use a CR2032 3-volt lithium battery. These are readily available at most electronics stores, pharmacies, and online retailers.
How to Tell if Your BMW 335i Key Fob Battery is Dead?
Several signs indicate a dying key fob battery. Reduced range, intermittent functionality, and the need to be very close to the car for the key fob to work are common symptoms. Sometimes, the car won’t respond at all.
Step-by-Step BMW 335i Key Fob Battery Replacement
- Locate the release button: On most BMW 335i key fobs, there’s a small release button or slot on the side. Press this button or insert a small flathead screwdriver into the slot.
- Separate the key fob halves: Carefully separate the two halves of the key fob. You might need to apply gentle pressure.
- Remove the old battery: Identify the CR2032 battery. Gently pry it out using your fingernail or a small flathead screwdriver.
- Insert the new battery: Insert the new CR2032 battery, making sure the positive (+) side faces upwards, as indicated on the key fob casing.
- Reassemble the key fob: Align the two halves of the key fob and press them together until they click securely into place.
Do I Need to Reprogram My BMW 335i Key Fob After Replacing the Battery?
In most cases, reprogramming is not required after a simple battery replacement. The key fob should automatically synchronize with your car once the new battery is installed. However, if you experience issues, consult your owner’s manual or contact a qualified technician.
Common BMW 335i Key Fob Problems and Solutions
Beyond a dead battery, other issues can affect your key fob. If your 07 bmw 335i key fob wont lock doors, it might be a more complex problem.
“A common misconception is that a new key fob is always the solution. Often, a simple fix like cleaning the contacts or replacing the battery can resolve the issue,” says John Carter, Senior Automotive Technician at Carter’s Auto Repair.
BMW Key Fob Battery Replacement Cost
Replacing the battery yourself is extremely cost-effective. A CR2032 battery typically costs just a few dollars. Dealership or locksmith services can charge significantly more, sometimes upwards of $50 or more for the same service. If you are considering a 2009 bmw key fob replacement, it’s a good idea to explore all your options.
“Remember to always use a high-quality battery for optimal performance and longevity,” advises Maria Sanchez, Electrical Systems Engineer at AutoTech Solutions.
Conclusion
Replacing the bmw 335i key fob battery is a straightforward process that anyone can handle with the right guidance. This guide provides the necessary steps and information to empower you to do it yourself, saving you both time and money.
FAQs
- What type of battery does my BMW 335i key fob need? A CR2032 3-volt lithium battery.
- How do I know if my BMW key fob battery is dead? Reduced range, intermittent function, or no response from the car.
- Do I need to reprogram my key fob after replacing the battery? Usually, no reprogramming is needed.
- Where can I buy a replacement battery? Electronics stores, pharmacies, and online retailers.
- What should I do if my key fob still doesn’t work after replacing the battery? Consult your owner’s manual or a qualified technician.
- How long does a BMW 335i key fob battery last? Typically 2-3 years.
- Can I damage my key fob by replacing the battery myself? Unlikely if you follow the steps carefully.
Common Scenarios and Questions
- Key fob works intermittently: Try replacing the battery. If the problem persists, there might be a deeper issue.
- Key fob completely unresponsive: Check the battery and ensure it’s installed correctly. Consider seeking professional help if a new battery doesn’t solve the problem.
- Key fob range significantly reduced: A new battery often solves this.
For other questions regarding key fobs, including information on where to bmw key fob phone buy, please explore our other articles on KEYFOBPROG.
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