What is the connection, procedure in case of a Mercedes and BMW cars with round diagnostic port?
Round diagnostic port
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- Last Post 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.
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