How to Check Engine Codes for a 1995 Mercedes


1. Open the fuse panel cover on your 1995 Mercedes and locate the on board diagnostic port to the left of the fuse panel. There is only one port large enough to accommodate the plug from the OBD scan tool. Plug the scan tool into this port.
2. Turn the ignition key to the "run" position and wait for the scan tool to retrieve the codes from your Mercedes' computer. Write these down.
3. Wait until the check-engine light goes out. Once it does, the check-engine codes have cleared.