Coolant Leak

[walkerkd]

wanted to say thanks to all you guys for the wealth of information. im haveing a issue with my a4 1.8t usp. i have a leak its underneath that engine cover. its the black metal pipe that connect to the upper rad hose. it has a damn little nipple on the top that has antifreeze leakn from it.. is this common and by any chance does anyone have a part number for it... thanks in advance. its that little nipple just toward the fire wall next to the dipstick

[rjc521]

Just had this replaced yesterday. Part #WHT-000-316. It is called a coolant bleeder screw and is a very common problem. Just make sure the coolant cap is tight after the dealership installs the new screw. Mine forgot to and all the coolant leaked out on my way home causing the car to overheat and a tow. I know this is common sense but some dealerships make me wonder, always double check their work. Goodluck!!!

[walkerkd]

so you dont have to replace the whole tube. just the screw in the middle of it. ?

[rjc521]

Yesss just the screw, the damn thing fall apart because it is plastic. The dealer explained to me the screw comes out and then you re-tap the threads to clean out the old debris and the new screw goes right in!

[walkerkd]

cool thanks i will go get one tomorrow and put it in. thats was helpful as usual!!!