Adding a new remote to your Audi A4 B6 using VCDS can be tricky. While the Ross-Tech website provides instructions, they may not be entirely accurate for all VCDS versions. This guide offers a clarified process based on experience with a 409.1 VCDS version, specifically for a 2002 Audi A4 B6.
Locating the Key Matching Function in VCDS
First, connect your VCDS interface to your vehicle’s OBD-II port and launch the software. The key adaptation function is usually found within module 46 – Central Convenience. However, the specific channel may vary depending on your vehicle model. For the A4 B6, it’s typically Adaptation Channel 21. In some VW models, it might reside in module 35 – Central Locking, Adaptation Channel 1. Use the [Select] button in VCDS to navigate through the modules and channels until you find the correct one. Look for a label indicating “Number of Remote Keys Matched” or similar.
Adding a Remote Key with VCDS: Step-by-Step Instructions
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Clear Existing Key Entries: In the identified adaptation channel (e.g., Channel 21), set the value to “0” and click [Save]. This step clears any previously stored key entries, ensuring a clean start.
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Prepare for Key Learning: After saving “0,” increase the value to “1” by clicking the [Up] arrow. You’ll notice the [Test] button grays out; this is normal behavior as using the arrow keys automatically tests the new value. The display should now indicate a status of “ADJUSTING” or similar.
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Register the First Remote: Do not click [Save] yet. Press and hold the unlock button on your first remote key for approximately one second. The status in VCDS should change to “LEARNED” or “REGISTERED.”
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Register Subsequent Remotes (if applicable): Increase the channel value by one for each additional key you need to program. For example, for a second key, increase the value to “2”. The status will revert to “ADJUSTING.” Press and hold the unlock button on the second remote for one second until it changes to “LEARNED” or “REGISTERED.” Repeat this step for any remaining keys.
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Save the Configuration: After all keys have been successfully registered, click the [Save] button to finalize the process. This is crucial; saving prematurely will prevent successful key registration.
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Test all Keys: Verify that all programmed keys function correctly by locking and unlocking the vehicle doors and trunk.
Important Considerations for VCDS Remote Key Adding
This process contradicts the information provided on the Ross-Tech website for VCDS version 409.1. The key difference is the timing of the [Save] function. In this method, saving occurs only after all keys have been learned, not after each individual key.
While these instructions are specific to a 2002 Audi A4 B6 with VCDS version 409.1, the general principles may apply to other VAG vehicles. Always double-check your specific vehicle and VCDS version information before proceeding. If unsure, consult a qualified automotive technician.
