507AMG

Not sure if you can tell from my photo, but I raised up the 2014 507 to start my LSD service, I'm right at 2016miles, and I look up to a drop of oil siting on the passenger side of the dif and it looks like it is coming from the right drive shaft metal ring the goes around the bearing/seal. I have a service appt set for tomorrow morning at the dealer but thought I would throw it out the you guys as I definitely don't want my diff being taken out and repaired if it is not absolutely necessary.
Thanks
That's the diff drain plug in the top of the photo going down to the passenger side driveshaft.

Mort

Looks harmless enough to me. Wipe it off with a shop rag dipped in a little paint thinner/Varsol if it leaves a stain. Maybe a little soap and water if you want it really clean. See if it comes back.

Ingenieur

looks more like paint?
sure it's not a 'check' mark?
doesn't look like diff fluid to me, doesn't look wet

m a x i m u s

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