Actuation of heated rear window at temperatures below 0 °C stays on with no time limit until shut off at temperatures above 0 °C it is shut off after approx. 10 min.
Above 0 °C the rear heated screen is controlled by a complex algorithm of outside ambient temp, internal temp and humidity, and energy management.
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Matt
2004 A8 3.7q, 1998 A4 2.8q, 1994 Coupe 2.8q SORN,
Last edited by mattylondon; 8th December 2015 at 03:17 PM.
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