Calling the Diesel gods... is it dead?

This Mercedes-Benz S123 300D is having some real bad idle issues. It pulls strong and got loads of torque but the the idle is all over the place. I tried to fix it, but failed. And now I ask for advice... what to do next? It is pointing towards worn out engine but is it really? #mercedesbenz #mercedes #dieselengine Patreon:   / seasidegarage