Sorry I added to the confusion - I should have said ETA or TA but I had a brain fart and thought Jim said Mercedes refered to the part as an EA (I didnt double check the thread history when I was composing my reply).

I'm replacing the electronic throttle actuator (under the air mass sensor dead center on the engine).

Beckmann has this part

Rplacement procedure from the CD's "Removing and installing electronic accelerator actuator with throttle valve body 15.8.94"

Procedure calles out fitting the gasket to the actuator with "Hylomar sealant" also tells you to use new "microencapsulated bolts". Anyone bother with this? Is there a permatex type equivalent or just skip the sealant?

Sorry for the confusion
Paul