How to Find Your Car Radio Serial Number — VW, Audi, Škoda, SEAT Guide

Why Do You Need the Serial Number?

Every VAG group radio (Volkswagen, Audi, Škoda, SEAT) has a unique serial number that links it to the manufacturer's database. This serial number — not your VIN — is what's needed to generate the correct unlock code for your specific radio unit.

Serial numbers follow a brand-specific format: VWZ for Volkswagen, AUZ for Audi, SKZ for Škoda, and SEZ for SEAT. The full serial is typically 14 characters long.

Method 1: Button Combination (No Removal Needed)

Many VAG radios can display the serial number directly on screen. This is the easiest method and works on most models from 2005 onwards:

1. Turn the ignition to the "ON" position (don't start the engine).
2. Turn the radio on. If it shows "SAFE" or "CODE", that's fine.
3. Press and hold buttons 1 and 6 simultaneously for 3–5 seconds.
4. The display will cycle through several codes. Look for the one starting with VWZ, AUZ, SKZ, or SEZ.

Alternative: On some older models, try holding buttons 2 and 5 instead. On Audi Concert/Symphony systems, press and hold FM1 and FM2.

Method 2: Physical Label on the Radio Unit

If the button combination doesn't work, the serial number is always printed on a label attached to the radio housing:

1. You'll need radio removal keys (available at auto parts stores for €5–10, or use two thin metal strips).
2. Insert the keys into the four holes on the radio faceplate.
3. Gently pull the radio out about 5 cm — you don't need to disconnect any cables.
4. Look for a white or silver sticker on the top or side of the unit.
5. The serial number is the 14-character code starting with VWZ/AUZ/SKZ/SEZ.

Method 3: Vehicle Documentation

Some dealers record the radio serial in the vehicle service booklet at the time of purchase. Check:

• The original radio code card (a small credit-card-sized card)
• The vehicle service booklet or owner's manual
• Purchase documents from the dealership

Common Mistakes to Avoid

• Confusing serial with part number: The part number (e.g., 1K0 035 186) is NOT the serial number. Look specifically for the VWZ/AUZ/SKZ/SEZ prefix.
• Misreading characters: O (letter) vs 0 (zero), I (letter) vs 1 (one). Take a clear photo in good lighting.
• Using the VIN instead: VIN-based code retrieval is unreliable for VAG radios. Always use the radio serial number.

Ready to Get Your Radio Code?

Once you have your serial number, getting your radio code takes less than 60 seconds. Our automated system supports all VAG radio models from 1995 to 2026.