Does anyone know what the purpose of the black box in the XF's is used for? Its mounted underneath the waterbottles on the pasengers side of the car. The reason i ask is cause one of my hoses that plug in there has snapped of, and was wondering if i could just leave it.
Also, i have lately been getting alot more km's out of a tank of petrol. I use to get 280-300 but now im getting 400(completely dry tank!!) and my driving pattern hasn't changed at all. Would this have anything to do with it?