Dear All,
I have been searching the W140 s500 recently. There is one thing i notice in some of the S500. After open the hood, I can see some gold color(or new motor oil color) on the silver part of the engine (in front of the black rubber cover)
I am wondering if it is normal? or it means a previous motor oil leak? or just a dirty oil changed?
Sorry for my poor english and I hope you guys know what i am talking about.

j