Reservoir coolant leak, new cap

[Perfectlap]

Honestly, the expense of re-filling under pressure is worth the peace of mind.
You also want to make sure the tank is holding the minimum required pressure.
How old is the coolant? Is it all the same pink color?
if you mix cheap coolant with the pink Porsche coolant it will waste the protective additives.
Generally this is not an area where you want to take chances or guesses.

This is why getting a new cap is a good idea whenever you flush the coolant, replace the tank or just decide to test for leaks is a good idea.

[Hodan]

I just replace the cap for the new one because I had the one ending 00, before replacing I had more water in the trunk, now not much. Yes I had mixed the water last summer and I didn't drive it for the winter. Yesterday I made a test like to try to put out the air and when I checked I still saw the water in the trunk but not much than before! I have an appointment next week to do the complete system flush and a test in the reservoir tank.