Audi Q3 Owners & Service Manuals

Audi Q3: LED and battery in the remote control key

Audi Q3 2018-2024 Owner's Manual / Starting and driving / Opening and closing / LED and battery in the remote control key

Opening and closing
Fig. 27 Remote control key (rear side): opening the cover

LED on the remote control key

The LED in the remote control key (front side) indicates the status of the key.

  • If you press a button briefly, the LED blinks once.
  • If you press and hold a button (convenience opening/closing), the LED blinks several times.
  • If the LED does not blink, the vehicle key battery is drained. Replace the battery in the vehicle key.

Replacing the remote control key battery

The replacement battery in the remote control key must meet the same specifications as the original battery (battery type CR 2032).

  • Pry the cover 2 off of the key 1 using a coin fig. 27.
  • Insert the new battery with the "+" facing up.
  • Press the cover back onto the key until it clicks into place.

If the indicator light appears with a corresponding message, the vehicle key battery is drained and must be replaced.


If batteries or coin cell batteries are swallowed or enter the body in any other way, they can cause serious or fatal injuries within a short period of time. There is a risk of chemical burns.

  • Keep vehicle keys and key fobs with batteries out of the reach of children.
  • Keep new or used batteries away from children.
  • If the battery compartment on a vehicle key does not close securely, stop using the key and keep it away from children.
  • Seek medical attention immediately if you suspect that a battery was swallowed or has entered the body in any other way.

For the sake of the environment

Batteries and electrical/electronic devices must be disposed of in an environmentally safe manner.

Remote control key synchronization

The remote control key must be synchronized if the vehicle does not lock/unlock with the remote control.

  • Press the remote control key button.
  • Insert the key in the driver's door lock within 30 seconds.
  • Press the button or button.


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