Hello
I am a bit confused as to where i should add coolant?

I understand that there is a coolant resevoir tank and then another type of small tank with a yellow cap on it.

My coolant resevoir tank always indicates a full level.. But when i take off the yellow cap the coolant seems to be down a little in that tank/area??

Should i be pouring coolant into the yellow capped holder? or into the coolant resevoir tank?

 

The reservoir is an overflow tank. Do not overfill it as it will leak out between the tank and neck connection. Add coolant to the thermostat cover cap when the engine is cool.

 

Ok so if this is low should i keep adding more until its close to the top?
Or is supposed to be a bit low when the car is cold and the cap off?

 

The "yellow-cap" area will always be a little bit low - 1/2 to 1" is OK.

As long as you can see the coolant in that opening, it is fine. Just keep the overflow tank up to the full mark, which is ~12'' down the dipstick.

If you start getting low-coolant buzzer, then you need to find out why the cooling system is not pulling the coolant back from the tank, assuming the tank stays full.

I only add coolant (rarely) to top up the overflow tank, and that's all you should have to do if the system is functioning correctly.