On-board computer and a scanner for Mercedes M111\M104 (HFM, PMS) based on the Android phone/tablet OBD2(ELM327)
Hain Diagnostic Connector Cable Compatible for Mercedes Benz Vehicle 38Pin to 16Pin OBD II Diagnostic Adapter, Car Transfer Line, Automobile Diagnostic Lin - Walmart.com
How to Choose a Fully Pinned 38-PIN Cable for MB SD C4? | OBDII365.com Official Blog
Mercedes Benz 38 Pin to 16 Pin OBD OBD2 Diagnostic Adapter | Manualzz
For Benz OBD 14Pin 38Pin To OBD2 16pin OBD2 14 Pin 38 Pin Extension Cable Scanner Connector For MB OBD Car Diagnostic Auto Tool|Car Diagnostic Cables & Connectors| - AliExpress
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Pinout of the diagnostic connector Mercedes.
Mercedes 38-pin old type Pinout
For Mercedes Benz 38 Pin to OBDⅡOBD2 16 Pin Diagnostic Adapter Connector Cable | eBay