I bought a Logic7 lower temp thermostat. They claim to "recalibrate" OE thermostats so as to not cause a CEL. I don't know how they do this, could be as simple as a resistor. But I've never heard of someone coding the car to run a lower thermostat, just modifying the thermostat.

Not saying it can't be done. Just that I've not heard of it.

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2005 X5 4.4i Build 04/05 Maintenance/Build Log
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2010 X5 35d Build 02/10
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