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Are you having problems with your 2013 Audi Q5? Let our team of motoring experts keep you up to date with all of the latest 2013 Audi Q5 issues & faults. We have gathered all of the most frequently asked questions and problems relating to the 2013 Audi Q5 in one spot to help you decide if it's a smart buy.
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The reductant heater on this car is a heating element that stops the AdBlue from freezing. According to most sources, the heater is only called into operate at ambient temperatures of minus-11 Celsius or lower. So, unless you're a regular at Australia's snowfields, your car will probably never need this function. But while the car may work perfectly without a functioning reductant heater, you might find that it's technically unroadworthy on the basis of its emissions systems (of which the AdBlue is a part) are not all working properly.
Most times, failures of this heater revolve around the electronics that control it, but when that happens, the computer will usually flash up a check-engine light to let you know there's something wrong. Without this light, I'm unsure why your mechanic would think there's a problem with the heater system.