2005-2008 Mercedes Benz R230 SL500 SL55 Comand Navigation Radio Head Unit OEM A2308205489

Restore the factory audio, navigation-control, and vehicle-information interface in your 2005-2008 Mercedes-Benz R230 SL-Class.

This is a Genuine OEM Mercedes-Benz Siemens/VDO COMAND APS NTG1 in-dash head unit. It includes the factory display, control buttons, disc mechanism, and COMAND operating interface in one original dashboard assembly.

The unit is used, has been tested for proper operation, and may show light cosmetic wear consistent with normal installation.

𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗗𝗲𝘁𝗮𝗶𝗹𝘀

• Product type: Factory COMAND navigation radio head unit  
• COMAND generation: APS NTG1  
• Manufacturer: Siemens/VDO  
• Brand: Genuine Mercedes-Benz  
• Vehicle platform: R230 SL-Class  
• Installation location: Center dashboard  
• Network type: MOST fiber-optic  
• Condition: Used and tested  
• Fitment type: Replacement for a matching original unit  
• Finish: Factory black  

𝗣𝗮𝗿𝘁 𝗡𝘂𝗺𝗯𝗲𝗿𝘀

• Primary Mercedes-Benz part number: A2308205489  
• Alternate formatting: 230 820 54 89  
• Identification reference: A2308271157  
• Identification reference: A2304420360 ZGS  

The additional numbers may identify the software, hardware, or configuration level printed on the unit. They should not automatically be treated as interchangeable Mercedes-Benz assembly numbers.

Always match A2308205489, the faceplate, rear connectors, and the complete identification label with the original radio.

𝗩𝗲𝗵𝗶𝗰𝗹𝗲 𝗙𝗶𝘁𝗺𝗲𝗻𝘁

Fits select 2005-2008 Mercedes-Benz R230 SL-Class vehicles originally equipped with the matching COMAND APS NTG1 system.

Potential applications include:

• 2005-2006 Mercedes-Benz SL500  
• 2007-2008 Mercedes-Benz SL550  
• 2005-2008 Mercedes-Benz SL55 AMG  
• 2005-2008 Mercedes-Benz SL600  
• 2005-2008 Mercedes-Benz SL65 AMG  

Production dates, vehicle markets, option packages, and installed COMAND versions vary. Not every R230 within these model years uses part number A2308205489.

𝗖𝗢𝗠𝗔𝗡𝗗 𝗦𝘆𝘀𝘁𝗲𝗺 𝗥𝗲𝗾𝘂𝗶𝗿𝗲𝗺𝗲𝗻𝘁𝘀

This unit is designed for an R230 already equipped with:

• Factory COMAND APS NTG1  
• MOST fiber-optic audio network  
• Compatible Audio Gateway or amplifier  
• Separate factory navigation processor  
• Matching wiring and antenna connections  
• Correct vehicle option configuration  

The NTG1 navigation processor is a separate component located elsewhere in the vehicle. It is not contained inside this dashboard head unit.

𝗙𝗮𝗰𝘁𝗼𝗿𝘆 𝗙𝘂𝗻𝗰𝘁𝗶𝗼𝗻𝘀

Available functions depend on the vehicle’s original equipment and connected MOST components.

• COMAND color display and menu interface  
• AM/FM radio control  
• CD and audio-source control  
• Navigation display and control  
• Factory sound-system integration  
• Steering-wheel control integration  
• Vehicle settings and information display  
• Telephone controls when factory equipment remains operational  

The external amplifier, tuner functions, telephone equipment, and navigation processor must be present and functioning for all features to operate.

𝗖𝗼𝗻𝗱𝗶𝘁𝗶𝗼𝗻

• Genuine used Mercedes-Benz component  
• Tested for proper operation  
• Buttons and controls checked  
• Display checked  
• Disc mechanism checked  
• May have light cosmetic wear from previous installation  

Review all product photographs for the exact cosmetic condition and configuration of the unit being offered.

𝗣𝗿𝗼𝗯𝗹𝗲𝗺𝘀 𝗧𝗵𝗶𝘀 𝗨𝗻𝗶𝘁 𝗠𝗮𝘆 𝗥𝗲𝗽𝗮𝗶𝗿

When the original COMAND head unit has been correctly diagnosed as defective, replacement may address:

• Dead or malfunctioning display  
• COMAND head unit will not start  
• Frozen or unresponsive menus  
• Defective front-panel buttons  
• Failed internal disc mechanism  
• Intermittent head-unit operation  
• Physical or liquid damage to the original head unit  

𝗣𝗿𝗼𝗯𝗹𝗲𝗺𝘀 𝗜𝘁 𝗪𝗶𝗹𝗹 𝗡𝗼𝘁 𝗥𝗲𝗽𝗮𝗶𝗿

• Failed Audio Gateway or amplifier  
• Broken MOST fiber-optic network loop  
• Failed trunk-mounted navigation processor  
• Defective GPS, radio, or satellite antenna  
• Damaged speakers or speaker wiring  
• Blown fuse, missing power, or poor ground  
• Water damage in another vehicle module  
• Telephone or Bluetooth module failure  
• Outdated or damaged navigation media  

Mercedes-Benz MOST systems are interconnected. Failure of another module can cause the COMAND screen, sound, telephone, or navigation system to stop operating even when the dashboard head unit is functional.

𝗖𝗼𝗱𝗶𝗻𝗴 𝗔𝗻𝗱 𝗜𝗻𝘀𝘁𝗮𝗹𝗹𝗮𝘁𝗶𝗼𝗻

This unit may require Mercedes-Benz STAR or Xentry version coding to match the vehicle’s installed options, audio system, telephone equipment, satellite radio, and regional configuration.

• Installation is not guaranteed to be plug-and-play  
• The MOST fiber-optic loop must remain complete  
• Vehicle-specific configuration may be required  
• Radio and navigation functions may vary by market region  
• Professional installation and diagnostic equipment are recommended  

A replacement unit from another vehicle may power on but still require configuration before every factory feature operates correctly.

𝗡𝗼𝘁 𝗖𝗼𝗺𝗽𝗮𝘁𝗶𝗯𝗹𝗲 𝗪𝗶𝘁𝗵

• Early R230 COMAND 2.0 units with a different face and connectors  
• 2009-and-later R230 COMAND APS NTG2.5 systems  
• Audio 20 radios  
• Units with different Mercedes-Benz assembly numbers unless interchange is verified  
• Radios from other Mercedes-Benz chassis based only on similar appearance  

𝗣𝗮𝗰𝗸𝗮𝗴𝗲 𝗜𝗻𝗰𝗹𝘂𝗱𝗲𝘀

• One genuine Mercedes-Benz COMAND APS NTG1 in-dash head unit  

External navigation processor, Audio Gateway, amplifier, map disc, antennas, wiring, fiber-optic cables, mounting hardware, trim, and installation instructions are not included unless specifically shown in the product photographs.

𝗕𝘂𝘆𝗲𝗿 𝗩𝗲𝗿𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻

Before ordering, confirm:

• Mercedes-Benz part number A2308205489  
• COMAND APS NTG1 system  
• Matching front-panel appearance  
• Matching rear electrical and fiber-optic connectors  
• Vehicle production date  
• Vehicle market and radio region  
• Existing audio-system option and amplifier type  

Providing the vehicle VIN and a clear photograph of the original radio label is strongly recommended before purchase.