OAT = -27.5°C umm… no it doesn't!

[Legoman]

Driving along nicely this morning minding my own buisness in a straight line doing about 70km/h and DING! Up pops a message on my dash display that the OAT has suddenly plummeted to -27.5°C. While it is winter here, the temperarure today is around +22’C not -27.5’C, so clearly this is not right.

Obviously the first thing to check is the plug connected to the temp sensor. Where is that?

[shogun]

quick search for "E32 Ambient air temp sensor location?" produces the result from 2009 https://www.bimmerforums.com/forum/s...ensor-location
older E32 like my 11/88 still have this big plug left side behind bumper and that is for fog lights and outside temp feeler, also causes probs http://bmwe32.masscom.net/johan/OBC_temp/OBC_temp.html
but your built year / months should have separate wiring behind the bumper for fog lights and OAT