Yestarday, our customer asked about Mercedes Benz 16PIN, let me think of something. So this car diagnostic tool information comes out for your reference.
16 Mercedes Benz pins breakout box enables access to all pins on a 16 pin OBDII connector via 4mm female banana sockets. Some cars (such cars are Opel or Mercedes Benz) use a lot of different Klines since it is different systems like engine ECU, ABS, etc. and this 16 Mercedes Benz pins breakout box is needed for most auto scan tools if it needs to access all the systems by just plugging in the Kline into the right socket of the system.
Some Mercedes-Benz models up to 1996 may have an 8 or 16 pin diagnostic connector. The diagnosis
program for these models is performed through the “Flash Fault Code” option, which is at the bottom of
the Mercedes-Benz chassis number selection menu. See the below graphics below to help with the proper connections. 
Note: you can get from launch x431. Launch x431 is hot selling at vtoolshop. Victory Team will provide you best service.