Citroën C1 I radio code

From the outside the C1 I looks like an ordinary city car, but beneath the plastic lies a special story: Citroën built this model entirely together with Toyota. That collaboration has a direct impact on the radio — and on the question of whether you need a code after a battery change.

Do the following test before you reach for any tools:

The Citroën C1 I is not built on the classic PSA platform of the C3 or C4. This model is the result of a unique collaboration between PSA (Peugeot-Citroën) and Toyota that started in 2005. The three models that came out of this project — the Citroën C1, the Peugeot 107 and the Toyota Aygo — share not only their engine and chassis, but also the entire audio system.

The radio unit in these three cars is a simple OEM radio from the Toyota/PSA B platform. Toyota does not use mandatory PIN protection for basic radios in the small-car segment. The result: the majority of C1 I examples simply start up the radio after a battery disconnect, without asking for any code.

This applies to all three models from the same generation (2005-2014). The procedures on this page are identical to those for the Peugeot 107.

The Citroën C1 I has no Blaupunkt RD4, no Clarion RD3 and no Continental RD45 either. Those systems are found in larger Citroën models such as the C3 and C4. The C1 I has a simple OEM unit from the Toyota/PSA B platform.

Depending on the year and trim level:

• Base versions: single-DIN radio with CD player, small display, limited functions. Part number 86120-0H010 (also used in the Toyota Aygo and Peugeot 107).
• Later (2009+): some examples got a slightly more comprehensive unit with RDS and MP3 support.
• Facelift (2012-2014): similar, sometimes with an aux input.

There's no BP serial number visible on the unit, and no C7 number or VDO sticker either. If your C1 I does show "CODE", it has a variant with a security code and you read off the serial number via the label on the unit.

The radio is held in place with DIN clips. You'll need DIN removal keys — the same as for other PSA and Toyota models. Product code PC5-83 (universal PSA set) or a generic DIN removal set. Price: three to six euros.

Step by step

If your C1 I does require a code, the serial number is on a sticker on the top or side of the radio unit. The format varies by version:

• Some units have a Toyota-style serial number — alphanumeric, without a BP prefix
• Others have a PSA-style label similar to older RD1 radios
• Note down all characters — letters, digits and any dashes

There are several numbers on the label. You want the serial number, not the part number (which starts with 86120-... on Toyota-style labels).

Practical tip: Take a photo with your phone and then zoom in. The labels are sometimes narrow and the characters are small. Don't confuse the letter I with the digit 1, or the letter O with the digit 0.

If the display shows "CODE", use the preset buttons:

After several incorrect attempts, the radio may set a waiting time. The display no longer responds to input.

Does your Citroën C1 I need a code after all and have you read off the serial number? Then request the code directly online.

Order your Citroën C1 radio code via RadioCodeLookup.com →