Hello to all!,
Newbie here. Not new to diesels, but the website.
Can anybody offer a lead here?
I have a very clean, spotless E300 diesel (OM606). I have no history of the car having just purchased it.
It starts up great in the morning and idles very smooth etc. However when it gets up to running temp, it violently shakes and idles like crap. It will slightly sputter up to 2000 rpms and then run fine all day(freeway)

thoughts?
No bubbles in lines, no leaks, etc.

thinking, filters/injectors

ps, theres a little oil in the bottom of #6 injector but its coming from the rubber breather? lines that go into the manifold.