where can I find "how to replace radiator info. 2nd Q... heater stopped working on 1994 Mercedes-Benz S420

little air comes through vents but no heat????

1 answer 2 comments
Try www.alldatadiy.com
nothing there tells me what I need to know... why bother sending it?
Because it has a lot of information for people who want something FREE. If that didn't help you, I'm sorry. You might try youtube, or use the find a shop to find someone in your area. I have programs that show me everything, and I have to pay a pretty penny to have them as well, so what do you expect.