CB003 - Mercedes 38 pins Round Diagnostic CableCB003 Mercedes 38 pins Round Diagnostic Cable The AVDI cable for the 38 pin round diagnostic connector for Mercedes Benz vehicles is designed to work with AVDI and older Mercedes Benz models, using this standard. It covers all ABRITES quality standards and is used to establish connection between the AVDI and Mercedes vehicles. Supported models: (1994 2002) W124 W129 W140 W202 W210 W220 Various trucks and any other Mercedes Benz model with a 38 pin