Becker car radios — BE-code, Mercedes-Benz OEM and COMAND

Becker radios belong with Mercedes-Benz. For decades this German audio company exclusively supplied the premium OEM radios and navigation systems to Stuttgart. The BE-code on the sticker of your Mercedes radio, the specific entry procedure using buttons 1-4, and the COMAND navigation system: it all traces back to Becker.

Max Egon Becker founded the eponymous company in 1945 in Stuttgart. As early as the 1950s, Becker was supplying car radios to Mercedes-Benz — a partnership that would last more than fifty years. Becker became synonymous with quality audio in the premium segments of the automotive sector.

In the 1980s and 1990s, Becker was one of the earliest manufacturers of integrated car navigation. The company combined radio, cassette, CD and later GPS into a single unit — a format that would later become the standard.

Acquisition by Harman

In 1999, Becker was acquired by Harman International Industries, known for brands such as JBL, Harman Kardon, Infinity and AKG. Within Harman, Becker initially continued to operate as a separate brand. Afterwards, the name was gradually phased out for consumer products. Harman itself was acquired by Samsung Electronics in 2017.

Becker's technology and expertise live on in the Harman products now fitted in Mercedes-Benz (and other brands), but the Becker name has disappeared from the product line.

The most recognisable feature of a Becker car radio is the BE-code — the unique serial number found on every unit.

Format

The BE-code consists of:

• The letters BE
• Followed by four digits (the model number of the radio)
• Then a space or hyphen
• Followed by a unique serial number of five to seven digits

Example: BE4717 123456

This format is consistent across the entire Becker OEM range for Mercedes-Benz. Whether it's a simple cassette radio from the 1990s or a COMAND navigation system from the early 2000s: the BE format is the same.

Where is the BE-code?

The sticker with the BE-code is on the side of the radio unit. On some Becker models the sticker is on the back. You need to slide the radio partly out of the dashboard to read the sticker.

On Mercedes-Benz models with a DIN-format radio (C-Class W202, first-generation Sprinter) you use T20 Torx screws. On models with a double-DIN or proprietary format (E-Class W210, S-Class W220) removal is more complex and model-dependent.

For the removal procedure, consult the model page for your Mercedes, such as Mercedes-Benz C-Class W203 or the corresponding guide for your specific model.

The entry procedure for Becker radios differs slightly from the standard VW or Renault method. Becker uses buttons 1 to 4 to set the digits, but confirmation works differently.

Standard procedure (most models)

1. Turn the ignition on (the engine does not need to be running).
2. The display shows CODE or a row of zeros.
3. Press button 1 to increase the first digit. Each press moves it up one step (0 → 1 → 2 ... → 9 → 0).
4. Use button 2 for the second digit.
5. Use button 3 for the third digit.
6. Use button 4 for the fourth digit.
7. Hold button 1 and button 3 at the same time to confirm the code.

Alternative confirmation (depending on model)

On certain Becker generations you confirm the code by:

• Holding button 5
• Holding button 6
• Button 1 + button 3 together (most common on older models)

It's advisable to check first which Becker model you have. The model number is part of the BE-code (the four digits after BE). Below is an overview of common models:

Unsure about the procedure? Enter the code and try confirming with button 1+3 first. Only do this if you're sure of the code — incorrect attempts can trigger a time lock.

Becker radios generally allow three attempts before the radio locks. After three incorrect codes, the display shows a wait timer — often at least 30 minutes with the ignition on. Once the wait time has elapsed, you can try again.

Don't disconnect the battery during the wait time. As with Clarion radios, doing so doesn't reset the counter but in some cases extends the wait time.

Becker's most ambitious project was the COMAND system for Mercedes-Benz. COMAND stands for Cockpit Management and Data system. It was one of the first fully integrated infotainment systems in a production car: radio, CD, navigation and (later) telephony in a single unit, operated via a rotary dial and a colour screen.

Becker developed the first generation of COMAND, the COMAND 2.0, which appeared in the S-Class W220 (1998) and later in the E-Class W211 and C-Class W203 as well. Later, COMAND APS appeared with DVD navigation.

Today, Mercedes-Benz has succeeded its COMAND system with MBUX (Mercedes-Benz User Experience), developed by Harman — the successor to Becker. The technological lineage from Becker to the current Mercedes systems can be drawn directly.

Almost every Mercedes-Benz from the 1990s and early 2000s had a Becker OEM radio. The most common combinations:

C-Class

• W202 (1993–2000) — Becker cassette/CD radio
• W203 (2000–2007) — Becker BE-series radio, later COMAND APS optional

E-Class

• W210 (1995–2002) — Becker Traffic Pro or Indianapolis
• W211 (2002–2009) — COMAND APS (Becker, later Harman)

S-Class

• W220 (1998–2005) — first COMAND system, developed by Becker

CLK / SLK

• W208 / W209 — Becker BE-series OEM radio

Sprinter (first generation)

• W901-W905 — simpler Becker units with BE-code

For a Becker Mercedes radio you need the BE-code from the sticker. With that code you request the four-digit unlock code. Don't know how to remove the radio? Then consult the page for your specific Mercedes model.