This product is a tested HVAC control panel for 1998-2003 Mercedes-Benz CLK320, CLK430, and CLK55 models. It is an original, genuine, and factory-working A/C heater control unit with dual-zone temperature control. The product is compatible with both hard top and convertible models of the Mercedes-Benz W210 E300, E320, and E430. The manufacturer warranty is included, and the product is made in Germany. The part number is A1408302685, and the interchange part numbers are A2108302385 and A2108302485.5.1