Henryw203

I have my 220 CDI (w203) air/EGR inlet manifold out and cleaned. Everything ok related to functions but the issue is leaks past the little seal rings in the swirl flaps actuating rods creating a mess. The seals are easy to take out and replace but the difficult part is to find the new seals. That is all I need to get a 100% manifold again.
My question is if anyone can help me with where I can get new seals for the swirl flaps seal stem. I have searched around with no luck.