Citroën Radio Code Retrieval (All Models)

Hello Dear Citroën Owners,

Did your radio lock and display “CODE”, “LOCKED”, or “Security” after a battery change in your Citroën (C3, C4, C5, Berlingo, Nemo, Jumper, etc.)? To bypass this security measure and get your music back, you need the 4-digit password calculated from your radio’s serial number.

In this guide, we will explain how to find the codes for Philips, Clarion, Blaupunkt, Daiichi, Siemens VDO and Continental brand radios used in Citroën vehicles.

If you know your serial number, you can instantly find your code using our Online Radio Code Finder Service below.

Important: Where is the Serial Number?

To calculate the Citroën radio code, you need to remove your radio from its slot and read the label on the casing.

• To remove the radio, insert the appropriate removal tool into the holes on the front panel and pull.
• Note down the part labeled Barcode or Serial No on the label.

Once you have your serial number, you can use the calculation tool below.

1. Citroën Philips & Clarion Series

Philips Series: Usually found in older model Citroën Xsara and Berlingo vehicles. The serial number starts with ‘T0’ under the barcode.

How to Enter? You must enter all characters you see in the serial number (e.g., if the label says T0S123, enter the full serial number T0S123 into the box and search).

Clarion Series: Frequently seen in Citroën C3 and commercial models. The serial number starts with ‘C7’ and is 12 digits long.

How to Enter? You must enter all 12 digits including C7 (e.g., C70000001234).

2. Citroën Blaupunkt Series (BP, 815… and 905…)

Used especially in Citroën Nemo and Jumper models. There are two types:

• Standard: Starts with ‘BP’ (14 digits). Enter as is.
• Special Series (Nemo/Jumper): Serial number starts with ‘815’ or ‘905’ and is 17 digits long (e.g., 815BP… or 905CM…).
  Attention: In these series, you must enter the full number completely, including the 815/905 at the beginning.

3. Citroën Daiichi and Continental Series

Daiichi: Models with screens found in vehicles like Nemo. It is a 5-digit number or letter+number combination (e.g., A1234 or 12345).

Continental: Found in new generation vehicles, starts with A2C… or A3C…. Enter the full long code.

4. Citroën Siemens VDO Brazil Series

In Siemens VDO RFM-1 MP3 brand radios, the last 4 characters at the end of the barcode or inside the box labeled “SECURITY” (one letter and three digits, e.g., D770) is the “pre-code” serial number information used to calculate the radio password.

5. Citroën Continental Brazil Series

In Continental RFM-1 MP3 brand radios, the last 4 characters to the left inside the box labeled “SECURITY” or next to the barcode on the label (consisting of one letter and three digits, e.g., I952) is the “pre-code” serial number information used to calculate the radio’s lock password (radio code).

Citroën Radio Code Finder Program;

Citroën Radio Code FAQ