OBD2 real-time Coolant temperature alert (DIY or BUY)

Wonder what you will do if the new gauge starts to give differing info to the OEM one, that will make your blood pressure jump, then the anxiety will start, then the doubt, then the sitting by the side of the road, then a call to the AA, just in case. All that because of mistrust in a well proven system. :whistle:
But each to their own I guess. :happy:
 
Hgg

Thanks to your research, I got a similar unit which works in my 1997 Z3 (m44). It wedges securely between the dash and windscreen, with the cable snaked through the dash interior. With 160K miles on the engine, I like having a little extra insurance against overheating.gauge.webp
 
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