Instant for most radios

Mercedes-Benz radio code

The Mercedes Citan uses a Renault radio with a precode — hold presets 1 and 6 and get your code instantly.

  • Free serial check
  • £9.99 per code
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Free check · No account needed · Help finding your serial

Step 1

Which Mercedes-Benz radio do you have?

Find the serial for your radio below. The serial tells us exactly which unit it is.

Renault precode radio: where to find the serial

Renault precode

Instant

Philips 22DC-series Tuner List and Update List, roughly pre-2010

Serial: 1 letter + 3 digits · e.g. A123
  1. Switch the radio on.
  2. Hold presets 1 and 6 together for about 5 seconds.
  3. The display shows a letter and 3 digits (e.g. A123). That is your precode.
  4. No display? Check the label on the radio for "PRE CODE", or the dash display pod.
Becker indexed radio: where to find the serial

Becker indexed

Not available

Three variants, distinguished by the highest digit the fascia accepts — 4, 6 or 8

Serial: 4 digits · e.g. 0007
  1. Remove the radio.
  2. Read the 4-digit serial on the label.
  3. Check the highest digit your radio accepts: 4, 6 or 8.

Variants: Highest digit 4 (fascia accepts 1-4) · Highest digit 6 (fascia accepts 1-6) · Highest digit 8 (fascia accepts 1-8). Choose yours in the radio type list above.

Check the handbook wallet for a code card, or ask a main dealer with your V5C and proof of ID.

I have my serial — check it free

Step 2

How to enter your Mercedes-Benz radio code

Once you have your code, key it in like this.

  1. Use presets 1, 2, 3 and 4 to set each digit.
  2. Hold preset 6 for about 5 seconds until the radio beeps.

Locked out? WAIT or ERROR — leave the radio on for 30–60 minutes and try again.

What we cover

  • Citan and T-Class vans — Renault precode
  • Becker indexed units (4-digit label number)

Popular models

  • Citan
  • T-Class

Years: 2012–2021. The serial decides — radios are often swapped between cars.

What we can’t do (yet)

  • Audio 10/20/50 and COMAND units

We tell you before you pay. Ask us about another radio →

Radio showing LOCKED, WAIT or SAFE?

Don’t keep guessing — each wrong try adds a delay. See how to clear it safely.

FAQ

Mercedes-Benz radio code questions

Where is my Mercedes Citan radio code?

Hold presets 1 and 6 with the radio on. The 4-character precode appears (e.g. A123). Enter it here for your code.

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