1997 Audi A4
Key Replacement - Save vs Dealer in Ventura County
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1997 Audi A4
Key Options
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1997 Audi A4 Remote Flip Key Replacement - Fast, Affordable & Professional
A flight attendant on a layover was grabbing brunch in Oxnard near Five Points Shopping Center, Sunday morning. She called me because another locksmith had already tried and failed on her 1997 Audi A4. The car would crank, fire for about two seconds, then the immobilizer killed fuel. Classic incomplete IMMO learn on the Megamos system.
The other tech told her it was a module problem and left.
It was not a module problem. On the IMMO-1 system in these B5 A4s, the immobilizer controller lives in the instrument cluster, part number prefix 8D0 919 xxx. Programming requires a PIN-based handshake pulled from the SKC (secret key code) tied to that cluster. If you rush the timed steps or run the wrong generation procedure, the key data writes temporarily but never commits to permanent memory. The car starts, then shuts down. Every time.
I connected through the OBD port with my IM608, cleared the botched key data from the previous attempt, pulled a fresh SKC from the cluster, and ran a clean IMMO-1 registration with the correct timed sequence. Her flip key, the 4D0837231P with all four buttons, started the car with no two-second cutoff. Held the idle steady, no flicker on the IMMO light.
She had already paid one locksmith for a job that was never finished. All I could do was make sure this time the car actually ran when she turned the key.
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Audi A4 Rapid Response, Done Right
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Mobile Service, Five-Star Results
Mobile service, five-star feedback
“I had two Subaru key fobs made and Marco provided excellent service. He stayed persistent through multiple part orders to make sure everything was correct. Very thorough, punctual, and great communication throughout.”
“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.”
“My key fob stopped working while I was at Oxnard Harbor and I thought I was going to need a tow. EZ Car Keyz showed up fast, programmed a new fob, checked everything carefully, and made sure the car was fully functional before leaving.”
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