Free Smart Radio Code

Smart radios unlocked online — from the eight-character serial on the Becker unit.

Own decoding algorithms
Free code — instant with one share
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On the same label as the serial: BE and four digits, for example BE 4715.
1234
Look at the display: count the dashes it shows for the code. If it wants five digits, count the numbered buttons that actually enter them — a five-digit Becker code is built only from the digits 1 to that many. Some radios have more buttons than they use for the code, so count the ones you press, not the ones you see.
Please enter the 8-character serial from the unit label — eight digits, or a letter and seven, like R2035446.
Code delivery time: free and instant — a share unlocks it
The 8-character serial from the unit label — eight digits, or a letter and seven.

How to Find your Smart Radio Code

Smart shared its head units with Mercedes, and the Becker-built navigation and sound units ask for a code once the battery has been off.

The serial is on the label on the casing, so the unit normally has to come forward out of the dash to read it.

Eight characters and nothing else — a longer number with letters through it is a part number, not the serial.

We hold the full Becker tables, but no Smart owner has confirmed a code to us yet, so this one is free: a share unlocks it and we ask you whether it worked.

Becker label

Serial number example:

11157338

Models and Makes Covered

Fortwo Forfour Roadster City-Coupé

How to Enter your Smart Radio Code

  1. Turn the radio on — the display asks for the code.
  2. A four-digit code uses any digits, 0 included. Set each digit the way your unit prompts — usually by pressing a preset button repeatedly, or by turning the tuning knob.
  3. On units with numbered buttons, a five-digit code is typed directly: button 1 types a 1, button 2 a 2, and so on, so it only uses the digits from 1 up to the buttons that enter it.
  4. Some units start by themselves after the last digit; others need a confirm key. If nothing happens after the last digit, tell us what the display shows rather than pressing other buttons.