2011 Audi A6
Key Replacement - Save vs Dealer in San Diego

2011 Audi A6 Remote Flip Key Replacement - Fast, Affordable & Professional

Audi uses what they call an immobilizer system. Every Audi key since the early 2000s has a tiny transponder chip embedded in the head. When you insert the key or bring the smart fob near the car, the immobilizer sends a challenge signal to the chip. If the chip responds with the correct encrypted code, the engine starts. If not, nothing. On older Audis this is a Megamos 48 chip. On newer models it is a more advanced encrypted system tied to the BCM2 module. Either way, that chip is why your key costs more than a hardware store copy.

A tax accountant at the dry cleaner in San Diego thought only the dealer could handle the "computer part" of his 2011 Audi A6 key. The dealer quoted $462 and he assumed that was his only path because Audi is a luxury brand with proprietary systems.

I brought my Smart Pro to his car. The Smart Pro is a dedicated key programming computer with solid coverage on older Audi IMMO3 and IMMO4 platforms. It walks through the immobilizer sequence, reads the stored security data, and registers new keys to the system. His Remote Flip Key, FCC ID IYZ3314, was a 3-button smart key. The technology inside is real. The dealer markup on that technology is not.

His spare was programmed and tested in about 30 minutes. Total was $243. Same chip, same programming, same result. The difference is $462 minus $243 still in his pocket.

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