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Guest
Posts: n/a
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MY BMW 528I, how can I change my dash board temp from -40 to -3
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Registered User
Join Date: Jul 2013
Posts: 0
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You posted an E39 question in the E30 queue. In the front grille or bumper area look for an air temperature sensor. This gives your IHKA control unit the outside temperature. It sounds like the sensor may have been ripped off or damaged or unplugged. An unplugged sensor sends a signal that the outside air is cold so the IHKA control unit will not turn on the AC because it thinks it too cold outside for AC
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