Thanks!
I really take pride in working on my cars starting from my BMW 850i to the E320 CDI and I will treat 300D no differently

I will be making a list of parts to order, so I will be posting lots of pics of problematic areas. This forum looks very informative and friendly, reminds me of roadfly E31 forum i use to belong to till I sold the car.
For starters, I heard several opinions about keeping or deleting the EGR valve

should I just buy a new one since it looks original or get rid of it?
I will be using Elf synthetic engine oil, works great with my CDI. What viscosity is preferred?
Thanks guys!