I bought a 2007 x5 at.105k .... turns out it.clearly has had the dreaded oil.cooler gasket leak.for many miles and it.also was.leaking.a.lot.from the transmission. Pan.gasket. 2 months and 2000 miles before I bought it was inspected at bmw and it's oil changed .... the paper.work says nothing about the drips. How.could.this be? I wonder.if.I have all the paper on the service history of.the car can I get.that somewhere?