07-14 Mercedes S500 S550 S600 CL63 Harman Kardon Audio Amplifier Amp A2218701789

Title

07-14 Mercedes W221 S550 C216 CL550 Harman Kardon Audio Amplifier A2218701789 OEM

Product Details

Description

This is a genuine OEM Mercedes-Benz Harman/Kardon Logic 7 Audio Amplifier Module removed from a running 2010 Mercedes-Benz S550 Sedan (W221). Finished in its factory-original aluminum heat-sink housing and carrying exact part number A 221 870 17 89, this high-performance audio processing component is an ideal direct physical, mechanical, and electronic replacement to instantly resolve common audio failures including complete loss of COMAND sound output, missing warning chimes, loud popping/static through the speakers, fiber-optic MOST loop break errors, or battery drain issues caused by a shorted amplifier failing to enter sleep mode.

As an authentic factory-original component, this amplifier features exactly mapped mounting bracket tabs, a fiber-optic MOST network port, and clean multi-pin speaker wire connector docks designed to seat flush inside your trunk cavity. Opting for a genuine Mercedes OEM amplifier is essential; aftermarket generic amplifiers cannot interface directly with Mercedes-Benz's fiber-optic MOST architecture without losing factory COMAND screen audio control menus. Every output channel, optical data interface, and power contact on this unit has been fully bench-tested and operates flawlessly.

Vehicle Compatibility

Please precisely verify your original module's part number sticker and optical port layout before purchasing. This audio amplifier fits select models equipped with Option 810 Harman/Kardon sound:

• Mercedes-Benz S-Class (W221 Chassis — S350, S400, S450, S500, S550, S600, S63 AMG, S65 AMG): 2007, 2008, 2009, 2010, 2011, 2012, 2013

• Mercedes-Benz CL-Class (C216 Coupe Chassis — CL500, CL550, CL600, CL63 AMG, CL65 AMG): 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014

• Application Warning: This unit is configured strictly for vehicles equipped with factory Harman/Kardon Logic 7 systems matching the "A2218701789" part sequence. It will NOT replace base standard audio amplifiers or Bang & Olufsen high-end systems due to completely different wiring harness plugs and optical firmware.

Important Installation Information

• Direct Mechanical Bolt-In & Harness Integration: Replacing this trunk-mounted amplifier requires standard hand tools. Disconnect the vehicle's 12V main battery prior to handling fiber-optic audio components. Remove the left-hand rear trunk carpet trim liner to access the module mounting bracket. Unbolt the bracket screws, disconnect the primary multi-pin power/speaker harness and fiber-optic MOST connector plug, swap the module over, re-bolt the bracket, reconnect the battery, and reinstall the trim.

Key Features

• Fully Tested Internal Circuitry: Tested for full audio output across all speaker channels, subwoofers, and fiber-optic data lines without overheating or channel clipping.

• 100% Water-Damage Free: Inspected internally and externally to guarantee no board corrosion, green copper oxidation, or liquid residue (the most common failure point in W221 trunk wells).

• Clean Terminal Docks: The optical port and copper power/speaker pin docks are completely clean, straight, and unbent.

• Intact Heat-Sink Casing: The outer aluminum heatsink and mounting bolt tabs are fully intact without structural cracks or heavy oxidation.

Shipping & Handling

• Packaging: Shipped securely inside a thick, heavy-duty structural box packed heavily with anti-static bubble wrap and soft foam layers to ensure the heavy aluminum heatsink, internal circuit board, and delicate fiber-optic ports arrive completely pressure-isolated, shock-protected, and pristine.

• Handling: Ships within 1 business day.