Benz 38-Pin to OBD2 16-Pin Diagnostic Adapter

Older Mercedes-Benz vehicles predate the 16-pin world: their service port is a round 38-pin interface, and a standard OBD2 scanner simply has nowhere to plug. This adapter bridges the two — the round 38-pin head into the car, the OBD2 16-pin female socket out for whatever modern diagnostic tool the workshop already owns.

The build keeps the flexibility and durability the trade asks of an adapter that lives in a tool case: high-quality materials throughout, so the cable survives being coiled daily. One honest caution, same as we print on the bag: check the interface support list for your model before ordering — the 38-pin world has variants, and sending a photo of your port is the fastest way to a certain fit.

Key features

• Round 38-pin Benz interface to OBD2 16-pin
• Feeds standard 16-pin diagnostic tools
• Flexible, durable everyday build
• For pre-OBD2 Mercedes-Benz fleets
• Interface check offered before dispatch

Specifications

Typical applications

• Independent shops servicing older Benz fleets
• Classic and Youngtimer Mercedes maintenance
• Workshops with one scanner, mixed-age cars
• Import inspection of pre-1996 vehicles

Custom and OEM options

Other interface conversions across the same family — Toyota 22-pin, J1939 9-pin, Ford 7-pin and more — share this build. Mixed-interface kits ship per order.

FAQ

Will it read every system on my car?
No adapter can promise that — coverage depends on the tool and the vehicle era. Send the model year and we confirm what to expect before you order.

How do I check my port?
Count the pins and photograph the socket; our support matches it against the interface list the same day.

Samples, packing options, payment terms and warranty conditions are set out in How to Order and Delivery Information.