Great advise and precautions!

Believe it or not - I need to buy the screw drive that will fit/unscrew the screws securing the decorative plastic extruded engine housing-cover to get to the fuel lines.

In the 3.5 years I've owned the car, I haven't done the maintenance/mechanicing on the car other than R&R of the engine mounts, cabin air filter, main battery (in trunk) & auxiliary battery under the hood (bonnet).

I need to procure the tool to fit the engine housing cowl - then, I may or may not possess the particular torx tool?

Once I get the cowl off, I'll probably be able to see where the fuel is dripping from.

My plan is to then take photos of the scene and go to the MB dealer in my other vehicle to buy a full set of replacement plastic lines and O-rings. I don't know if I will have the ability to change the hard plastic lines at their fittings - but will have to learn this procedure to gain the knowledge to become proficient, and to save the labor costs involved.

While I've got the cowl off, I can get a gander at the injectors, and see if the Black Death fuel oozing is present on my '06 CDI engine top. However, I believe that condition mainly afflicts 2005 injector design. I'll also be able to familiarize myself with the glow plugs locale and view the thread covered fuel return/equaling lines.