Adapter from older round 38 pins Mercedes diagnostic connector (engine compartment) to OBD-2 plug

Optimal to make car diagnostic with fitting software and a common KL interface.

Length: 20 cm

Pin	Function
1	GND
3	Battery +12 V
4	Data ECUs
30	Data AB, SRS

Wiring OBD-2 plug to the Mercedes connector:

OBD II                Mercedes Benz
Pin                   Pin

16 ------------------- 3
4  --
     |---------------- 1
5  --
7  ------------------- 4

Select picture to enlarge, please.