What's the problem with Mondeo engine oil leakage?

It should be a sealing problem. Tell 4s to dismantle and reassemble.

My car leaks water here, too. I just cleaned myself a while ago. It should be the valve cover gasket. If you change it, you have to remove the valve cover, and you still hesitate to remove it. If the leakage is not serious, you have to bear it. I checked online and found that there were not a few people who had this problem before.