2018 Audi A3
Key Replacement - Save vs Dealer in San Diego
No Spare Needed | We Make Keys On-Site

Lost all your keys? Don't panic, and don't call a tow truck. Our mobile locksmith comes to your vehicle and creates a brand new key from scratch, even with zero working keys.

Emergency key, plus 10% off
2018 Audi A3
Key Options
Dealer-grade key for a fair, honest price
No Audi Key? See Your Best Option
No key? See which option gets you driving faster
2018 Audi A3 Key Replacement - Fast, Affordable & Professional
She was sitting outside one of the brunch spots right on the main stretch in Cardiff-by-the-Sea, Encinitas, waiting on her ride to the airport and running out of time. Flight attendant on a layover. She'd already paid another locksmith that morning, and the car still wasn't right.
The story came out in pieces. The other tech had made a new key for her 2018 A3, and the car would crank, turn over, start to fire, and then die inside two seconds. She got shown a parts invoice and told the car had a module problem. The locksmith left.
That's not a module problem. That's a stalled immobilizer registration. The vehicle security system on these cars runs a PIN-based security handshake, and it has timed steps built into the process. If the procedure gets rushed, skipped, or run with the wrong sequence for this generation of Audi, the system accepts the key data in a temporary state and never commits it to permanent memory. The car starts, the immobilizer catches up, and it kills the engine. Every time.
I connected through the OBD port with my key programming tool. Cleared the incomplete registration from the previous attempt, pulled a fresh PIN from the immobilizer, ran the correct sequence with the security timer respected, and got a confirmation that the key was written permanently. She drove it around the block herself before I packed up, just to be sure. Clean start, no stall, no warning lights.
She'd already paid once for a job that wasn't finished. I made sure this one was.
Save vs the Dealer on Your Audi A3 Key
Get your key for hundreds less than the dealer. Same quality, same result, better price.
Audi A3 Rapid Response, Done Right
Rapid response in the field
Real Emergency, Real Relief
Stranded drivers who found relief
“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.”
Audi A3 Key Service Areas
All-keys-lost service in every city

Emergency service available in all listed cities





