How to Change Porsche Key Battery: A Quick Guide

February 9, 2024


How to Change Porsche Key Battery: A Quick Guide

Replacing the battery in a Porsche key is a practical skill for any Porsche owner to master. With use, the battery inside the key fob will eventually deplete, necessitating a change to maintain the key's remote functionality. This process can be accomplished with a few simple tools and does not typically require a trip to the dealership or a professional mechanic, saving both time and expense.

Porsche factury

Understanding the correct procedure is essential to avoid any potential damage to the key fob. Porsche key designs can vary depending on the model and year of manufacture. It is important to identify the specific type of Porsche key one has before attempting to replace the battery.

Most Porsche keys are designed to be easily opened, with the battery itself being readily accessible for replacement. A new battery restores the key fob's functionality, ensuring that the remote locking and unlocking of the vehicle, along with any other features controlled by the key, continue to operate effectively.

Identifying your porsche key type

Before attempting to change the battery in a Porsche key, one must accurately identify the type of key they have. Porsche keys can vary depending on the model and year of the vehicle.

Traditional key

The Traditional Key is often found with older Porsche models. It consists of a metal blade and a plastic head that contains the transponder chip. Characteristics:

• Metal blade key

• Plastic head with Porsche logo


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Keyless Remote

A Keyless Remote, or fob, is standard for various Porsche models from the late 2000s onwards. It allows for remote door locking and unlocking but still requires physical insertion into the ignition. Features:

• Button-operated

• Transmitter signal for locking/unlocking

Advanced Keyless Entry

The Advanced Keyless Entry system permits drivers to unlock and start their vehicles without using a traditional key. These keys are typically equipped with sensor-based technology. Identification Tips:

• Smart functionality (unlock/start without insertion)

• Rechargeable battery/Non-traditional battery type

Changing the Key Battery

Changing the battery in a Porsche key is a simple process that requires minimal tools. The procedure ensures that your key fob continues to work efficiently and reliably.

Gathering the Necessary Tools

Small flathead screwdriver: To open the key housing.

New CR2032 battery: The replacement battery typically used in Porsche key fobs.

Locating the Battery Compartment

The battery compartment is located inside the key fob. To access it, one must first look for a small notch or slot that is designed to fit a flathead screwdriver. This is typically found along the seam where the two halves of the key fob join together.

Removing the Old Battery

Gently insert the flathead screwdriver into the notch to pry open the key fob. It should split into two halves, exposing the old battery. Care must be taken to avoid damaging the key fob's components. The old battery can then be removed from its compartment, often by lifting it out of its retaining clips.

Installing the New Battery

Place the new CR2032 battery in the battery compartment, ensuring it is facing the correct direction as indicated by the '+' and '-' symbols inside the compartment. The battery should fit snugly within the retaining clips without forcing it.

Testing the Key Functionality

After the new battery is installed, snap the two halves of the key fob back together. Press the buttons on the key to test that LED illuminates and that the key fob is functioning properly, signaling a successful battery replacement.

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