Audi A4   Controls   Doors and windows  Central locking system
LED on remote control key
The LED -A- lights up when you press the buttons.
The LED should flash once when you press one of the buttons briefly.
The LED should flash repeatedly when you press and hold one of the buttons (convenience open/close).
If the LED does not flash, the battery in the remote control key is flat. In addition, the indicator lamp will light up and the message Please change key battery will appear. Replace the battery.
Replacing the battery for the remote control key
Remove the emergency key Link.
Press the release catch -B- on the battery carrier and at the same time pull the battery carrier out of the remote control key in the direction of the arrow.
Insert the new battery with the "+" symbol facing downwards.
Slide the battery carrier carefully into the remote control key.
Insert the emergency key.
For the sake of the environment
Used batteries must be disposed of appropriately and must not be discarded with ordinary household waste.
Note
The new battery must be of the same type as the original one.

All images, logos and text are property of © Audi. This site has no relationship with the company Volkswagen - Audi Spain nor any of its affiliates worldwide. For more information.