Just 2 days ago I replaced my coolant and cap, and everytime I drive my car then let it cool down the water level drops bellow minimum. I have refilled it probably 5 times already, and am not sure where the water is going. I dont think i left that much airspace in the system as the temp guage is working nicely, and my cap is brand new so i believe it must be holding pressure. I can not see any leaks. any help would be great. thanks in advance!
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The first thing you should do would be to check to make sure the cap is on tightly, sometimes those caps don't fit all that greatly right away.
You could always take it to a shop and have dye put into the cooling system and track the leak with a blacklight.

 

oil cooler seals????

 

Since you just replaced the cap and the problem just started, the cap seems like a good culprit. They can be poor from the get-go and you lose coolant down the overflow tube. You could put a baggie on the tube to confirm.

Otherwise there is a long list of usual suspects with this car.

 

...like the electric turbo pump. Mine just started leaking.