Quote:
I would think, though, that with all the monitoring crap done by the BMW OBC that if there was a thermostat issue, it would signal it... it signals everything else (stupid brake light circuit failure notice with no failure!)


Nup. Brake light failure, brake light circuit failure, low beam failure, coolant low, washer fluid low and that's about it. If yours is signalling a faulty brake light when you think it's not, I'd bet it is intermittently.
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Christian
#40104192 120Gb (no longer in my E36 M3, won't fit the E46 M3)