Are you experiencing issues with your BMW X5 key fob? Many BMW X5 owners eventually encounter a common problem: a key fob that no longer unlocks or locks the car remotely. While your key might still start your BMW just fine, the convenience of remote entry can be lost. If this sounds familiar, the likely culprit is the battery inside your key fob. Understanding the Bmw X5 Key Fob Battery Type and how to address this issue is crucial for maintaining the functionality of your vehicle.
The original BMW X5, particularly the E53 model discussed in forums, uses what’s often referred to as a “diamond key.” These keys are designed with a rechargeable battery system. Unlike standard key fobs that use disposable batteries, the BMW diamond key recharges its battery inductively when inserted into the ignition. This ingenious system was intended to provide a long-lasting power source for the key’s remote functions.
However, like all rechargeable batteries, the battery in your BMW X5 key fob has a lifespan. Over time and charge cycles, these batteries degrade, leading to a reduced ability to hold a charge. This is why you might find your key fob working intermittently or not at all for remote functions, even though it still starts the car. The starting function relies on a separate transponder chip (EWS) which doesn’t depend on the rechargeable battery.
So, what is the bmw x5 key fob battery type? The battery commonly found in BMW diamond keys, including those used for the E53 X5, is the Panasonic VL2020. This is a rechargeable coin cell battery known for its reliability and suitability for inductive charging. It’s important to note that while some might consider replacing it with a non-rechargeable battery, this is generally not recommended. BMW designed these key fobs to work with rechargeable batteries for a reason. Using a non-rechargeable alternative could lead to issues with charging circuitry and potentially shorten the lifespan of your key fob.
If you’re considering a DIY fix for your BMW X5 key fob battery, replacing the VL2020 battery is a viable option. Online resources, like the YouTube video mentioned in forums, demonstrate the process. It involves carefully opening the key fob, removing the old battery, and soldering in a new VL2020 battery with the correct 90-degree connection geometry. While this can be a cost-effective solution compared to purchasing a new key fob from BMW, it requires some technical skill and careful handling of delicate electronics.
To summarize, when addressing issues with your BMW X5 key fob’s remote functions, remember that the bmw x5 key fob battery type is likely a rechargeable VL2020. Understanding this allows you to explore options like DIY battery replacement to restore your key fob’s full functionality and convenience. Keeping your key fob battery in good condition ensures you can continue to enjoy the keyless entry and remote locking/unlocking features of your BMW X5.
