Mercedes-Benz 38-Pin to OBD2 16-Pin Diagnostic Adapter Cable – OBD1 Benz Connector

Mercedes-Benz 38-Pin to OBD2 16-Pin Diagnostic Adapter Cable

This passive diagnostic adapter connects the older round Mercedes-Benz 38-pin diagnostic socket to a standard 16-pin OBD2/EOBD diagnostic-tool connector. The Mercedes 38-pin connector was used on a range of earlier vehicles, particularly during the 1990s and early 2000s. A compatible diagnostic scanner or Mercedes diagnostic interface is required.

Key Features

• Mercedes-Benz round 38-pin diagnostic connector
• Standard-style 16-pin OBD2/EOBD diagnostic-tool connector
• Passive adapter – no built-in diagnostic electronics
• Designed for older Mercedes-Benz diagnostic applications
• Useful with compatible professional diagnostic scanners and interfaces
• Durable molded connector construction for workshop use

Vehicle / Chassis Support

Suitable for Mercedes-Benz vehicles equipped with the round 38-pin diagnostic socket. Documented applications include selected vehicles from the following chassis families:

• W124 E-Class / earlier 124-series applications
• R129 SL-Class
• W140 S-Class
• W202 C-Class
• W208 CLK-Class
• R170 SLK-Class
• W210 E-Class
• Other Mercedes-Benz models fitted with the compatible 38-pin diagnostic connector

Diagnostic System Support

Available system access depends on the vehicle, scanner, software and the specific 38-pin wiring used. Mercedes 38-pin documentation identifies diagnostic lines for systems that can include:

• Engine management / ECU
• Electronic diesel systems
• ABS / ASR / ETS / ESP
• Electronic transmission control
• SRS / airbag
• Air-conditioning / climate control
• Instrument cluster
• Central locking and other body systems
• Additional Mercedes-specific control modules where supported by the diagnostic equipment

Scanner Compatibility

The adapter can be used only with diagnostic equipment capable of communicating with the protocol used by the specific vehicle. The cable does not convert an unsupported scanner into a Mercedes-capable diagnostic tool. Generic OBD2 readers may provide limited or no communication on older vehicles.

Important Compatibility Notice

Check that the vehicle has the round Mercedes-Benz 38-pin diagnostic socket before ordering. Some vehicles may have both the 38-pin connector and a 16-pin OBD connector, and diagnostic coverage can differ between them. Model year alone is not sufficient to confirm compatibility.

This adapter is a physical/passive connection cable. Diagnostic functions such as reading or clearing DTCs, live data and module access depend entirely on the connected scanner, software, vehicle system and communication protocol.

Package Includes

1 × Mercedes-Benz 38-Pin to OBD2 16-Pin Diagnostic Adapter Cable.

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