Your 2nd problem might be a crankcase breather. If it blocks up, pressure builds in the crankcase forcing oil out.
Matt, Gowrings Ford on houndsmill finally paid up after I took them to court when bits went missing off my Transit but that's another storey. Main dealerships are nothing short of rip off merchants, and it's been proven in courts that you don't have to use them to validate servicing/repairs in relation to guarentees.