W124 E,CE,D,TD Class
Hi! I have W124 from 1993. It's M111 200E (136hp).
Cold starts are brilliant, rpms are stable at 1000. But after a few minutes rpms begin to fluctuate.
You can see this here:
These aren't massive fluctuations, but engine visually shakes and I can feel shaking inside.
I have new spark plugs, new...