Using Generic Scan Tool
WARNING: This page is about a different car, the 1997 Mercedes-Benz SL320, 1997 Mercedes-Benz E320, 1997 Mercedes-Benz C36, and 1997 Mercedes-Benz C280. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition off. Connect generic scan tool to diagnostic connector located under left side of dashboard. See Fig 1. Turn ignition on. Follow tool manufacturer's instructions for reading fault codes. If no fault codes are present, but vehicle is experiencing a problem, go to SYMPTOM DIAGNOSTICS .