OK... OK I admit it, I was the soccer coach who sodomized you, to be fair you did kinda ask for it. Dude it's just a car thread. Chill the fuck out, you're getting in lolcow territory of anger-sperging over my transmission preference.
Anyone with two thumbs and one eye can scan/tune a car via OBD2. It gets complicated when you need to extract data via EEPROM from the car modules. I personally hate dealing with Mercedes Benz, all of them suck but the FSB3 security system (Around 1998-2016ish) is terrible. The ESL and the transmission are considered by MB USA to be "theft controlled parts" in addition to the IES unit and the keys themselves. When the ESL goes bad on a Mercedes you have one shot at the easy disassembly putting the key in and out and striking the ESL unit with a hammer, don't bother with a dead-blow because the entire unit really should be scrapped anyway. From there if you can get the motor to turn one more time you are saved from taking the entire column down just to get to one stupid 13mm threaded post. Open it up, extract that data from the memory device and upload it into a new ESL unit or just install an emulator. I really could talk about car security systems for days. But, point being it's just laughable to me you think a scan tool and auto EEPROM work are the same job, why would mechanics and dealerships pay me to do all that if they could just hit some buttons on the AUTEL IM608?