2012 BMW 7 Series
Key Replacement - Save vs Dealer in San Diego
Licensed & Insured | Mobile Key Experts
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2012 BMW 7 Series
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2012 BMW 7 Series Emergency Key Replacement - Fast, Affordable & Professional
A customer at the VFW near Santee Lakes told me he'd already paid another locksmith for a 2012 BMW 7 Series key that never started the car. The engine cranked but the immobilizer killed it immediately. The other locksmith blamed the CAS module and walked away.
The CAS was fine. The locksmith had skipped the ISN read from the DME. BMW requires the key, the CAS, and the DME to all share the same internal security number. Without that three-way match, the engine computer won't release fuel. It's not optional.
I used my HU92 Lishi to verify the blade cut, then connected through OBD. I read the CAS3 data, pulled the ISN, and reprogrammed the key with the complete security sync. His fob, FCC ID , was a 3-button slot key. Engine start was clean on three consecutive tests. I showed him the IM608 screen confirming the ISN match between the CAS, DME, and key so he could see for himself that the three-way sync was complete.
He paid me $95. Dealer charges $200 for the same work. He'd already paid the first locksmith too, which was money gone. But I could make sure the job was done right this time.
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“My Sprinter van key broke and I was stranded. Marco was very friendly and helped me get three new keys quickly. I will definitely be using them again.”
“My son had an issue opening the driver door on his Honda Civic. I called on New Year's Day and expected a nightmare, but they arrived quickly and fixed the problem in about half an hour.”
“I needed a second key made for my 2012 Nissan Altima. They arrived quickly, finished in about 15 minutes, and gave me the best price I could find.”
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