Mercedes Benz 300E E320 190E OBD1 Code Reader Diagnostic tool Diagnose problems & reset check engine light on your 1986-1995 Mercedes Benz and save money Compatible with 1986-1995 W 124 201 300E 320 190E E320 300TE models and others Generation 2 model features new fused diagnostic test lead with externally accessible fuse holder to protect your car diagnostic circuits Built in a commercial facility to professional tool standards. Kit comes with CD containing all codes and their meanings as well as how to use guide. These tools have been built since 1990 , sold worldwide.