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Audi Audi · Radio Codes
Est. 6 Hours

Audi A4 Radio Codes

Audi A4 radio code by serial number. Covers all Concert, Chorus, Symphony, and navigation units fitted across A4 B5, B6, B7, and B8. Enter your AUZ serial from the unit label.

Enter your serial number
Over 1 million codes delivered worldwide.
Not sure which serial to enter? See examples
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Excellent 4.5 stars 22,067 reviews on Trustpilot
Trustpilot 4.5 out of 5 stars on Trustpilot TrustScore  4.5 | 22,067 reviews

Step 1 of 3

How to find your Audi serial number

The guide below will show you exactly where to find your Audi radio serial number.

Remove the radio to find your serial
Audi Chorus / Concert
Remove the radio to find your serial
Insert the four radio release keys into the corner holes of the fascia and apply gentle outward pressure. The unit slides forward. You do not need to disconnect any wires.

The serial is on the label on the back of the casing, starts with AUZ, 14 characters (for example, AUZ2Z3C1420538).
Remove the radio to find your serial
Audi Symphony
Remove the radio to find your serial
Insert the four release keys into the corner holes and slide the unit forward. The serial is on the label on the back of the casing, starts with AUZ, 14 characters (for example, AUZ1Z4H7755256).
Find your serial on screen
Audi RNS-E Navigation
Find your serial on screen
You do not need to remove the unit. Power it on and look at the bottom of the display, the serial number appears along the bottom edge of the screen.

It starts with AUZ, is 14 characters long, and the sixth character is always 7 (for example, AUZBZ7H7145296).
What your Audi serial looks like
AUZ-Series AUZ1Z1F6412082
AUZ-Series AUZBZ7E0902434
Can't find it? Contact us. We'll help you locate your serial before you pay a penny.

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FAQ

Frequently asked questions

Why is my Audi A4 radio asking for a code?
Power was cut to the unit, a flat battery or a battery change being the usual cause, and the anti-theft lock activated. Enter the correct code once and it will not ask again until the next time power is lost.
Which radios were fitted to the A4?
Mostly the Concert, Symphony and Chorus units, plus the RNS-E navigation on higher specs. All carry a 14-character AUZ serial and all are covered. The RNS-E can also show its serial on screen, which saves removing it.
Where is the serial on an A4 radio?
On the label on the casing, a 14-character number starting AUZ. Slide the unit out with release keys to read it, no wires need to be disconnected. RNS-E owners can use the on-screen route instead.
How do I enter the code on an A4?
With the ignition on the display shows SAFE, then 1000. Set each digit with the preset buttons, then confirm. If the radio shows 2 SAFE it has had too many wrong attempts, leave it switched on for about an hour and it will accept entries again.
I have had the car years and never needed a code before. Why now?
The code only comes into play when the radio loses power. Many owners never see it until the first battery change. Nothing has gone wrong with the unit, it just needs its code once.

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5 stars
3 hours ago Trustpilot

Merci pour la récupération de ma…

Merci pour la récupération de ma radio..très précise. Un bon dialogue jusqu'à arriver au bout

Marie -Claude Naulot · FR
5 stars
3 hours ago Trustpilot

Service parfait

J'ai fait appel à OnlineRadioCodes car suite à une panne electrique de ma voiture mon ordinateur de bord ne fontionnait plus J'ai reçu le code dans la minute…

jean-michel GUIBAL · FR
5 stars
7 hours ago Trustpilot

Un site sérieux

Un site sérieux, j'ai reçu le code une demi heure après avoir effectué le payement. Je suis vraiment satisfait.

Javor Show · FR
3 stars
10 hours ago Trustpilot

Leider Passt dieser Code nicht mit dr…

Leider Passt dieser Code nicht mit dr Vin Nummer hat das ganze nichts zu tun. schade

Thomas Schaaf · DE
5 stars
10 hours ago Trustpilot

Schnell und unkompliziert.

Schnell und unkompliziert.

Melanie Birkl · DE
5 stars
1 day ago Trustpilot

Tutto ok

Tutto ok, il primo codice ha funzionato senza problemi.

Roberto · IT
5 stars
1 day ago Trustpilot

C est la première fois que je visite…

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Boyah · MR
5 stars
1 day ago Trustpilot

Code correct and customer sevice is…

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Dragon · ME
5 stars
1 day ago Trustpilot

I was discouraged by my mechanic that…

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Malish Simbe Emmanuel · SS
5 stars
2 days ago Trustpilot

War erst skeptisch

War erst skeptisch, aber hat alles top funktioniert, hätte ich ehrlich nicht gedacht! Sehr zu empfehlen!!

Marcel Müller · DE
5 stars
2 days ago Trustpilot

Soddisfatto

Entro un'ora dall'ordine, come promesso, ho ricevuto tramite mail codice di sblocco corretto per la mia autoradio. Consigliatissimo. A.

Alberto Oddi · IT
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