How to Remove a PCB From a Three


1. Push the 'Key Open/Close' button on the combo unit and fold the key into the notch. Turn the unit over to view the backside with the Audi logo. You'll see a small notch.
2. Insert the flathead screwdriver into the notch and gently turn it. The two sections of the key will partially separate. Grasp the bottom with one hand, grasp the top with another, then pull the sections apart to open the unit.
3. Examine the bottom section of the unit. Pull apart the two halves of the bottom section to access the Audi key's battery and PCB.
4. Lift the PCB from the compartment to remove it. It is not held in place by screws.