Round diagnostic port

  • Last Post 06 August 2018
itsjoasom posted this 04 August 2018

What is the connection, procedure in case of a Mercedes and BMW cars with round diagnostic port?

Incardoc posted this 06 August 2018

Please note, that app and ELM327 adapters designed for OBD-II compliant cars. If the car have socket that does not fit the standard, it's the big chance that protocol does not compatible with OBD-II specification too. 
You might need to search some specialized app and adapter, that declare support of custom protocol for te specified car model/year. Great chance that it might be 2 different solutions for Mercedes and BMW.