Set of keysSet of keys  - Central locking system - Doors and windows - Controls - Audi A4 Owner's Manual - Audi A4

Keys supplied with the vehicle

Keys supplied with the vehicle

A Remote control key

The remote control key will lock and unlock the car and start the engine.

B Spare key

The spare key is intended for temporary use only and should be used only in an emergency. Keep it in a safe place and do not carry it on the keyring.

Replacing a key

If you should lose a key, please contact an Audi dealer. Have the remote control coding for that key deactivated. For this purpose you should bring all available keys with you. It is also important to notify your insurance company if a key has been lost.

Electronic immobiliser

The immobiliser is designed to prevent unauthorised persons from driving the vehicle. If an uncoded key is used, SAFE will appear in the mileage recorder display.

It may not be possible to start the engine with the key if there is another ignition key from a different make of vehicle on the same key ring.

Data stored on remote control key

Data related to the service and maintenance of the vehicle are stored continuously on your remote control key. Your Audi dealer can read out the data and will then be able to tell you what service work is required. This also applies to vehicles with advanced key.

Personal convenience settings

If two people use the same car regularly, it is a good idea for each person to have his or her УownФ remote control key. When you switch off the ignition or lock the vehicle, your personal settings for the following convenience features are stored and assigned to the remote control key:

  • Х Air conditioner
  • Х Central locking system
  • Х Windows
  • Х parking system*
  • Х adaptive cruise control*
  • Х Audi drive select*
  • Х Seat memory*

The stored settings are then recalled automatically the next time the vehicle is unlocked, the doors are opened or the ignition is switched on.


  • Х Always take the key with you when leaving the vehicle - even if you only intend to be gone for a short time. This is especially important if children are left in the car. They might otherwise be able to start the engine or use power-operated equipment such as the electric windows - this could lead to injuries.
  • Х Wait for the vehicle to come to a standstill before removing the ignition key from the lock. Otherwise the steering lock could engage suddenly, causing an accident.

The function of the remote control key may be impaired by interference from Note

The function of the remote control key may be impaired by interference from other nearby radio signals (for example from a mobile telephone or TV transmitter) if these are in the same frequency range.