A neighbor had a come to you bmw mechanic replacing the valve seals on his 2005 x5. He was using a seal replacement tool that allows him to replace.the seals.without pulling the heads. He charges $1500.for.the labor on that.

Told him I had the oil cooler gasket drip. He said that required removing the differential. He said $500 labor ... so much easier than valve.seals? Wish I knew what was required.for.sure but seems $500 is a deal?