Where is the Mercedes-Benz OBD interface located?

1 Answers
ClaireAnn
07/30/25 5:24am
The OBD interface of Mercedes-Benz is located below the left side of the steering wheel. Almost all Mercedes-Benz vehicles have the OBD diagnostic connector installed below the left side of the steering wheel, covered by a lid that can be opened to reveal it. The OBD interface is a 16-pin female connector with a trapezoidal shape. Some models may have a protective cover over the OBD port, and the common OBD interfaces are black, white, or blue. Additional information: 1. OBD, as an abbreviation for a proprietary term, stands for On-Board Diagnostics, which means: onboard automatic diagnostic system. This system can monitor the working conditions of the engine's electronic control system and other functional modules of the vehicle in real-time during operation. If any abnormal conditions are detected, it will determine the specific fault according to a specific algorithm and store it in the system's memory in the form of a Diagnostic Trouble Code (DTC). 2. The useful information obtained after the system's self-diagnosis can assist in vehicle maintenance and repair. Technicians can use the vehicle's original specialized equipment to read the fault codes, thereby quickly locating the fault to facilitate vehicle repairs and reduce manual diagnostic time.
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