2010 Audi A4
NASTF Certified Key Service in Santa Barbara County
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2010 Audi A4
Key Options
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All Audi A4 Keys Lost? Compare Options
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2010 Audi A4 Smart key Replacement - Fast, Affordable & Professional
When a 2010 Audi A4 key is done wrong, it does not just partially work. It fails. The engine might crank but the immobilizer kills fuel injection after two seconds. The remote might lock but not unlock. The comfort access might detect the fob one day and ignore it the next. Or the key programs initially but the car rejects it after a drive cycle.
A veterinary technician at the dog grooming shop in Old Mission Santa Barbara, Santa Barbara had a key made by another locksmith for her A4 that stopped working after about a week. It would start the car fine in the morning, then by evening the push-to-start refused to detect it. She thought the car had an antenna problem.
The previous locksmith had used a generic transponder chip that was close to the Megamos spec but not exact. On Audi's immobilizer system, a close-but-wrong chip can pass initial registration but fail after the car runs its deeper verification over multiple drive cycles. I used my VVDI2 to read the chip in her bad key, confirmed the data was wrong, and programmed a new key with the correct Megamos generation matched to her FCC ID IYZFBSB802. Her fob also had a low CR2032 battery making the intermittent detection worse.
The replacement has been working since. Her cost was 278. The dealer would have charged 512. The difference between a key that works and one that works for a week is chip accuracy.
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BSIS licensed, NASTF certified, Google Guaranteed. Trusted by 1,000+ customers in Old Mission Santa Barbara, Santa Barbara.
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“Tim went above and beyond. I struggled all day trying to program a new FOB and nothing worked. Tim helped me patiently, even recommending cheaper options since I was on a tight budget. He eventually came all the way to Ojai late at night and fixed everything.”
“Tim was GREAT. I honestly swear he must have had my keys made before he even showed up. The entire process was insanely fast, from the initial phone call to having the keys in my hand. No one will beat the pricing, efficiency, or outstanding service.”
“My car keys were stolen on a cold evening and Nick drove all the way out to Santa Barbara. He got into my car, made a new key, and charged $100 less than another company. Friendly, skilled, trustworthy, and genuinely caring. Nick is a hero.”
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