VCDS New Key Programming for VW and Audi

Programming a new key for your Volkswagen or Audi vehicle can be done using VCDS (Vag-Com Diagnostic System). This guide provides step-by-step instructions for matching new radio-frequency remote keys to various VW and Audi models. Important Note: This procedure focuses on matching the remote’s radio frequency, not the immobilizer component. For immobilizer matching, consult your vehicle’s factory repair manual or other resources specific to immobilizer programming.

Using VCDS to Program a New Key

Before starting, gather all the remotes you intend to program, including existing ones.

Procedure 1: Adaptation Channel Method

1. Connect VCDS: Connect your VCDS interface to your vehicle’s OBD-II port and launch the VCDS software.
2. Select Controller: Navigate to [Select] -> [46 – Cent. Conv.] or [35 – Cent. Locking], depending on your vehicle. You can refer to the Ross-Tech website for specific controller information for your model.
3. Access Adaptation: Go to [Adaptation – 10].
4. Enter Channel: Enter channel “01” or “21” (some Audi models use “21”). Click [Read]. The “Stored Value” will display the number of currently matched remotes.
5. Enter New Value: In “New Value,” enter the total number of keys you want to program (including existing keys), up to a maximum of 4. Click [Test] to verify the number in “Test Value” is correct.
6. Save and Match: Click [Save]. Within 15 seconds, press and hold the UNLOCK button on each remote for at least one second, one at a time. Your vehicle may acknowledge each successful match with flashing lights or a horn beep.

Procedure 2: Measuring Blocks Method (If Procedure 1 Fails)

1. Insert Working Key: Insert a working key into the ignition and turn it to the ON position (do not start the engine).
2. Select Controller and Measuring Blocks: Navigate to [Select] -> [46 – Cent. Conv.] or [35 – Cent. Locking] -> [Meas. Blocks – 08].
3. Enter Group: Enter group “003” or “007” (some vehicles use “007”). Click [Go!]. Field 2 displays the number of matched remotes and their memory positions (e.g., “0001” indicates one transmitter in position 1).
4. Lock Car: Lock the car from the outside using the new, unmatched key in the driver-side door lock. You might need to hold the key in the unlock position for the next step.
5. Press Unlock Button: Within 5 seconds, press the UNLOCK button on the new key enough times to reach the next available memory position (e.g., if Field 2 showed “0001,” press the unlock button twice to place the new key in position 2). The vehicle might acknowledge this action.
6. Unlock and Test: Wait 5 seconds, press the unlock button to unlock the door, turn the ignition OFF, and remove the old key. Test the new key by locking and unlocking the car.
7. Verify Matching: Insert the new key in the ignition, turn to ON, and repeat steps 2 and 3. Field 2 should now reflect the newly matched key (e.g., “0011” in the previous example).

Clearing Existing Matched Remotes:

If necessary, clear existing matched remotes: [Select] -> [46 – Cent. Conv.] or [35 – Cent. Locking] -> [Adaptation – 10]. Enter channel “00,” click [Read] then [Save], and confirm with [Yes] when prompted. This will erase all matched remotes, requiring you to reprogram all keys using one of the procedures above.

Important Considerations

Always code new keys into free memory positions (indicated by a “0” in Group 003, Field 2). Using an occupied position will overwrite the existing key in that position. Consult your vehicle’s factory repair manual for specific instructions and precautions. This guide provides general information; procedures may vary slightly between models. Ross-Tech is not responsible for any damage or issues arising from following these instructions.