wankelgrandfather

iTrader: (2)

So my coolant filer neck has a nipple as it is an S4, that goes to the overflow tank. The nipple is now broken, by I got another one on the radiator.

So my question is: Can I block the nipple on the filler neck (on top
of the engine) and route the hose back to the radiator nipple, and be done with it. I searched and othe generations don't have that nipple on the filer neck, thus my question.

wankelgrandfather

iTrader: (2)

Did it, realised that is how it's done on an S5, never mind.

eage8

iTrader: (9)

Make sure the radiator cap on the radiator is a pressure bypass type. Stock its just a sealed cap because the stock radiator doesn't have a nipple.

Also, Make sure you still fill the system from the coolant neck cap, it's higher up in the system.

wankelgrandfather

iTrader: (2)

Thanks for your input, that is exactly how I did it, considering it was not the same pressure for both caps, so I exchanged them. It should work fine.

At first I was worried that the nipple would not be at the highest point, but that how it is on the S5.