Mercedes Benz BE7021 W221 W217 CL S Harman Kardon Amplifier Full Refurbished

Note: This listing is for a professional repair service of your existing Mercedes-Benz Harman Kardon BE7021 amplifier.
You are not purchasing a replacement unit—we will restore your original unit to full working condition.

Expert Harman Kardon Amplifier Repair for Mercedes-Benz Models

If you're experiencing audio issues in your Mercedes-Benz CL or S-Class vehicle, the Harman Kardon BE7021 amplifier may be to blame. This critical audio module is responsible for powering your vehicle’s premium surround sound system. When the amplifier fails, your entire in-car entertainment experience is compromised.

Our Module Medics team specializes in restoring factory amplifiers to OEM standards. We bring your original unit back to life, saving you the high cost of a dealer replacement.

Common Part Numbers We Repair:

• A2218206789

• A2218206089

• BE7021

If your part number is not listed, please contact us before purchasing to confirm compatibility.

Common Symptoms of a Faulty Harman Kardon BE7021 Amplifier:

• No sound from speakers

• Distorted or crackling audio

• Only partial speaker output (e.g., rear or front channels missing)

• Constant battery drain caused by amplifier staying powered on

• Unit not communicating via OBD or unable to be programmed

• Intermittent power cycling or amplifier not turning on at all

These symptoms indicate failure in the internal power transistors, DSP chips, or moisture-damaged circuitry—issues our technicians are highly experienced in diagnosing and repairing.

Compatible Mercedes-Benz Models:

This amplifier is commonly found in:

• Mercedes-Benz S-Class (W221)

• Mercedes-Benz CL-Class (W216)

• Mercedes-Benz S-Class Coupe (W217)

Typically installed in vehicles with the factory Harman Kardon Logic 7 surround sound system.

How Our Mercedes-Benz Amplifier Repair Service Works:

1. Purchase this repair service on our site.

2. Ship your faulty amplifier to our certified repair facility in Maryland. 

3. Our expert electronics technicians perform a full refurbishment, including:

   • Diagnosing power and logic board faults

   • Replacing failed ICs and capacitors

   • Repairing moisture or heat-damaged PCB areas

   • Restoring clean signal output to all speaker channels

4. Your unit is tested extensively under simulated vehicle conditions to ensure complete functionality.

5. We ship the fully refurbished and warrantied unit back to you—usually within 2 to 3 weeks, depending on repair complexity.

Why Choose Module Medics?

• Industry experts in OEM automotive audio module repair

• Saves you hundreds compared to dealership replacement costs

• Extends the life of your factory-installed premium audio system

• All repairs include a 12-month warranty

• Excellent customer support from purchase through return delivery

Additional Notes:

• If your vehicle's amplifier has suffered from water intrusion or power surge, we can typically repair these issues—just mention them when you contact us.

• For fastest turnaround, please include your vehicle VIN to assist with proper coding and testing.

Questions?

We’re here to help. Contact us if you’re unsure about your part number, symptoms, or shipping details. Our team is dedicated to bringing your Mercedes-Benz sound system back to life.