Need some advice. i have a 2014 black edition avant multitronic that has done 28,000 miles. yesterday i notice a droning noise coming from the front when on the motorway when we were on a long journey. Not the you can hear the noise when the car gets about 20mph and its a constant drone, almost like a low flying plane. there are no errors on the dash, no vibration through the steering wheel, the tyres have plenty of tread. My gut feeling is that its a wheel bearing, but should it suddenly start making a noise. earlier this week there was no noise and the car hasn't done that many miles. So it is a wheel bearing? Will take it into Audi on Monday and as the car is still in warranty hope that any issue will be covered.