OBD reader




I see they sell adapters for 16 pin to 38 pin. So i would get a mercedes specific obd scanner and then an adapter IF needed.
The Launch Creader obd scanners appear to have good reviews. If i didint already have a decnt one already i would probably get the Launch Creader Elite. AliExpress has them for under $80 right now, or im sure Amazon will have some good Black Friday deals coming up.








I think there are 4 launch units that do full systems for Mercedes, seems the difference besides the price is the android operating system they run off of. And the more expensive units also have BMW, Audi and VW software as well as Mercedes, so a better option if you have these cars also.
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I was looking around at what the 38 pin adapters actually do, looks like it is only 3 wires in them, or at least the cheap ones.
As was stated, 16-pin under dash connectors became standard in 1996, my C230K has both the 16pin under the dash as well as the 38pin connector under the hood.




I dont even know how my obd reader really works so did more reading. I keep seeing people with early 96-2000 MB's saying that the obd port under the steering wheel isnt that useful, that most diagnosing is used at the 38 pin. But then if that adapter only sees k line how much can it really do? I dont know.
I did come across an Godiag GT108 tool/adapter that shows it connecting to more pin outs. I think that may be why some say the MB Star C4 is a great option for earlier Mercedes, it has the right software needed.
Heres the MB obd2 pinouts:
Heres info on that Godiag GT108 adapter:







