Where is the OBD for 1989 Mercedes 560?

The OBD (On-Board Diagnostics) system in a 1989 Mercedes 560 is located under the driver's side dashboard, near the steering column. It typically features a 38-pin diagnostic connector. This model predates the standardization of OBD-II, so it utilizes the proprietary diagnostic system of that era, which requires a specific adapter for reading codes.