Audi Radio Code & Lockout Recovery Guide
Complete technical walkthrough for Audi stereos locked after battery replacement: serial number identification, step-by-step keying instructions, SAFE / WAIT lockout reset, and official dealer security procedures.
Open the radio code lookup toolAudi Radio Code Keying, Serial Recovery & Troubleshooting
Find Serial Number
Audi radio serial numbers are 14-character codes starting with "AUZ" stamped on the metal chassis (e.g. AUZ1Z3K1234567 or AUZ2Z3...).
Step-by-Step Code Input
When "1000" appears after "SAFE", enter digits via buttons 1-4. Hold down "SCAN" and "RDS" buttons together for 3-5 seconds to confirm and unlock.
SAFE / WAIT / LOCKED Solution
After 2 incorrect attempts, "SAFE" locks the unit. Leave the radio and ignition ON for 60 minutes continuously to restore the "1000" code prompt.
Supported Factory Units
Concert I/II/CD, Symphony II/6CD, Chorus, RNS-E Navigation, BNS 5.0, Audi Navigation Plus.
Authorized Dealer Technical Procedure