The rear heater elements that are prone to breaking are there to heat the rear compartment when the front is set colder than the rear. Therefore if the front is set at 22 the rear should heat to 22 or above. However if the front is set to 18 and the rear passenger wishes 22 but the heater element is broken then the rear will only heat to 18
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Nite Blue 3.0L SE Quattro
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