my car seems too make a sort of droning noise when going along from the rear, but doesnt seem to do it when cold and it only does it after i have driven it for say a couple of miles, but could be me just thinking it it doesnt change pitch and just seems to be this drone, that although not that loud become s obvious if the radio is off or low so any ideas? could it be wheel bearing or poss rear diff? although i certainley cant see any signs of the diff leaking, i know the front diff has a very small drip when it gets very hot after long drives. would having dropped the suspension bit more than the standard sport stuff that was fitted mae a difference? i was going to sell it but now decided as its never let me down and ive had it for so long and i dont really need a new car lol im going to keep it, and i think id miss it. so really would like to sort out the little irritations. oh its done 130,000 and i know the bearings never been done since ive had it nor in the full audi service in the first owner.