pink liquid under Enginebay cover

[VVTL-i-KiCkIn]

what is that pink liquid under engine bay ?

I have 16000 mile on my car and that pink liquid is showing LOW

do I have to take it to the dealer?

[VZV21]

buy more coolant from the dealership

[VVTL-i-KiCkIn]

how much are they?
do I have to drain out all old liquid and replace it with new?
or just add more?

[Maelfyn]

You can just fill 'er up