Mercedes-Benz W211 Audio 20 CD Radio - Integrated Bluetooth Music Streaming Retrofit

OEM Look. Modern Connectivity.

Upgrade your W211 E-Class entertainment system without sacrificing the factory aesthetic. This genuine Alpine-built Audio 20 CD unit has been professionally retrofitted with an internal Bluetooth module, allowing for high-quality wireless music streaming directly from your smartphone.

The Bluetooth "Retrofit" Experience

• Pure Streaming: Wirelessly play Spotify, Apple Music, or Podcasts through your car's original sound system.
• Steering Wheel Integration: Volume controls remain fully functional.
• Seamless Look: No messy wires or external dongles; the modification is entirely internal.
• Note on CD Function: To enable Bluetooth, the internal CD player mechanism is reserved for the BT signal. Physical CD playback is disabled.

Technical Compatibility (Read Carefully)

This unit is a direct "Plug & Play" replacement ONLY for vehicles originally equipped with the Audio 20 CD. It is not a direct fit for cars with Audio 20 Cassette or COMAND Navigation systems due to different wiring harnesses.

• Chassis: W211 Sedan / S211 Estate (2002–2009).
• Part Number: A2118702889 / MF2770.
• Fiber Optics: Fully compatible with the MOST fiber-optic ring (CD Changers, Sound Systems).

Hands-Free Calling Note

The integrated Bluetooth module is for Music Streaming only. If your W211 is equipped with the factory Mercedes phone cradle/MOST system, your original hands-free calling will continue to work as intended. The radio does not support mic-input via the added Bluetooth module.

Condition & Testing

Every unit is bench-tested. We verify the amplifier output, display clarity, button backlighting, and Bluetooth pairing stability before shipment. Expect a clean, high-functioning unit with minor signs of prior use consistent with a well-maintained vehicle.

Shipping & Handling

• Double-Boxed: Audio units are sensitive to impact; we use professional-grade packaging to protect the internal circuitry and front faceplate.
• Global Delivery: 6-7 business days to Europe | 10-14 business days Worldwide.