Quote:
Originally Posted by Powaup
What are the downsides? the OBD2 port could be permanently damaged?
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The OBD2 port is intercepted, making it useless for diagnostics while in use. Meaning one must remember to disable the module in order to a tech to perform a diagnostic scan if troubleshooting (not only related to DME).
Worst case scenario would be forgetting to turn off the module and a BMW tech spending time troubleshooting why a scanner isn't communicating properly.