Audi · Radio Codes

Est. 24 Hours

Audi A4 Radio Codes

Name: Audi A4 Radio Codes
Brand: Audi
SKU: audi-a4-radio-codes
Price: 24.99 GBP
Availability: InStock
Rating: 4.5 (22099 reviews)

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.

Est. 24 Hours Money back guarantee Secure checkout

Excellent

22,099 reviews on

TrustScore 4.5 | 22,099 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.

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).

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).

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.

Why choose us

The World's Leading Audi Radio Code Service

World's No.1

OnlineRadioCodes.co.uk is the world's leading supplier of car radio codes, with over 1 million codes delivered since 2015. Our radio experts are on hand to help you every day.

Instant delivery

Most codes appear on screen the moment payment clears. For brands that require manual lookup, our team typically delivers within the hour during business hours.

Money back guarantee

If your code does not work, we refund you in full. No questions, no hassle. We are one of very few radio code companies to back every order with a complete money back guarantee.

Lifetime retrieval

Misplace your code weeks or even years from now? Just get in touch and we will resend it free of charge, every time. One purchase gives you access for life.

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.

Verified · Trustpilot

Don't just take our word for it

See all reviews on Trustpilot

38 mins ago

Instant results, worked v well

Needed a code for my Boxster after battery change- quick, efficient and accurate results

jean oosthuizen · CA

2 hours ago

The first code I was given didn’t work

The first code I was given didn’t work. I replied to the mail and they answered really quickly with a new code that worked. Couldn’t be happier!!

Johan Steenkamp · ZA

2 hours ago

Very quick service and professional…

Very quick service and professional after care service on the phone sadly a wasted £9:99 as the radio has an internal fault would only let me input zeros

Steve Davis · GB

3 hours ago

Excellent service quickly delivered

Excellent service quickly delivered, thanks.

Mick · GB

6 hours ago

Brilliant

Brilliant, so easy and completed within the time frame specified.Thank you Online Radio Codes team, you made my day

Sheila Crowsley · JE

6 hours ago

Radio Code given in a matter of hours

For mere convenience I decided to rather use online radio codes rather than going into Nissan directly and have to wait for an appointment. I recently had to…

Dusana Merven · GB · Nissan

7 hours ago

Excellent service

Excellent service, code worked amazingly . No more holding buttons to override the input code .

Kayleigh · GB

10 hours ago

snel en echt de goeie radio code ik…

snel en echt de goeie radio code ik denk binnen 3 min had ik hem helemaal top!

Jeroen · NL

12 hours ago

Absolut Super

Absolut Super, vielen Dank für die schnelle Code Ermittlung. Das Radio funktioniert jetzt, dafür ist der Preis mehr als gerechtfertigt Der Code der beim Radi…

Martin Hofmann · DE

12 hours ago

Der code kam nach ca 6 stunden und…

Der code kam nach ca 6 stunden und funktionierte direkt

Tom Goeke · DE · Ka

22 hours ago

Literally 10 minutes start to finish to…

Literally 10 minutes start to finish to get the code highly recommended

Steve Grainger · IM

23 hours ago

Fast and it's works perfectly

Eva · GB

See our 22,099 reviews on

Online Radio Codes is an independent radio code service and is not affiliated with, authorised by, or connected to Audi AG or any of its subsidiaries or affiliated companies. All manufacturer names, model names and trademarks are the property of their respective owners and are used solely for identification and reference purposes.

Get my radio code