filling coolant system after rebuild
 

ok, i read the guide in the 2nd gen archive, but i have a question about it. Someone was saying that S4's have a)filler cap (thermostat housing), b)bleeder valve on side of radiator, and c) a radiator cap. i have an s4 and i'm putting in a fresh rebuild (thanks Karack), and i have NO cap on the top of the radiator. did i just misunderstand or do i have a different radiator? the only thing on the top of my radiator is (I think) a temp sensor that screws into the radiator itself. thanks in advance for clearing this up for me.

Just fill it from the Tstat housing cap....pull the bleed plug fromt he side of the radiator while you're filling it. The rad will be full when the fluid starts dribbling out of the bleeder....