Genuine used OEM Mercedes-Benz Harman/Becker Logic7 audio amplifier for selected Mercedes-Benz S-Class W221 and CL-Class C216/W216 vehicles equipped with the factory Harman Kardon premium sound system.
This listing is specifically for Mercedes-Benz OEM part number A2218206789 with Becker model designation BE7021.
You will receive the exact amplifier shown in the listing photos.
Commonly associated with selected:
2007–2013 Mercedes-Benz S-Class W221
2007–2014 Mercedes-Benz CL-Class C216 / W216
Vehicles equipped with the factory Harman Kardon Logic7 audio system
Vehicles using a compatible MOST fiber-optic audio network
⚠️ Compatibility cannot be confirmed by model and year alone.
Mercedes-Benz used several visually similar amplifiers with different OEM numbers, Becker models, hardware revisions, software versions and vehicle configurations.
The complete OEM number on the buyer’s original amplifier must match A2218206789.
Mercedes-Benz OEM number: A 221 820 67 89
Compact format: A2218206789
Becker model: BE7021
Manufacturer: Harman/Becker Automotive Systems
System type: Harman Kardon Logic7 audio amplifier
Electrical system: 12 Volt
Communication: MOST fiber-optic audio network
Genuine Mercedes-Benz OEM component
No other part numbers are represented as automatically interchangeable with this amplifier.
Please compare the complete identification label on your original unit with the label shown in the listing photos.
Included in this sale:
1 × Mercedes-Benz Harman/Becker Logic7 amplifier
Housing and attached components shown in the photos
Only the components pictured are included.
Not included:
Vehicle wiring harness
Additional MOST fiber-optic cables
Speakers
COMAND head unit
Programming, coding or installation service
Mounting hardware not visible in the photos
Any components not shown
Used genuine OEM Mercedes-Benz electronic component.
The amplifier may show normal signs of previous installation, removal and storage, including:
Surface scratches and scuffs
Dust and handling marks
Discoloration or surface oxidation on the metal housing
Wear or dirt on the identification label
The housing, connectors, mounting points and label condition are shown in the listing photos.
No separate bench-test report or programming service is included.
Please inspect all photos carefully before purchase.
Photos show the actual amplifier you will receive.
This component is an audio amplifier. It is not an engine ECU and not an immobilizer module.
Do not assume that the amplifier will be plug-and-play in every vehicle.
Installation may require:
Mercedes-Benz STAR/Xentry diagnostics
Vehicle-specific coding or configuration
Software and hardware revision verification
MOST fiber-optic network diagnosis
Clearing stored diagnostic trouble codes
Installation should be performed by a qualified Mercedes-Benz technician or automotive-electronics specialist.
Before ordering, compare the replacement amplifier with the original unit installed in the vehicle.
The following information must match or be professionally confirmed:
OEM number A2218206789
Becker model BE7021
Connector configuration
MOST fiber-optic connection
Vehicle VIN
Vehicle production date
Factory audio equipment
Hardware and software revision
Do not assume that A2218206789, A2218701789, A2218705089, A2218206189 and A2218206889 are interchangeable.
If the original amplifier has a different OEM or Becker number, confirm compatibility through the VIN before purchasing.
Worldwide shipping is available.
The amplifier will be carefully packed to help protect its housing, connector sockets, MOST fiber-optic connection, mounting points and identification label.