Excluding a functional release lever and cable, not that I am aware of.

Additionally:
1. To the right (standing facing the engine) of the release mechanism and above the auxiliary fan is the adjusting assembly that is likely sufficiently out of adjustment that pulling on the cable will not sufficiently release the hood latch.
2. The aforementioned assembly is covered on the bottom and sides by a black plastic casing.
3. Having replaced the hood release cable on two 300Ds, I simply cannot fathom how one would release the hood if the lever--cable combination fails to do so. Perhaps someone knows a way but based on my experience, there is no other way.