That makes sense. So I have a 25/75 mix now. I still feel like there is still air in the system, but that makes sense. I live in the south SF Bay Area so it doesn't go above 80F or below 40F. I guess I will drain some tomorrow and add a concentrate mix. Thanks again guys.
This is why I love this forum. The members can you out of a situation fast!

 

Recently did this several times to flush/fill prior to pump replacement. Removing lower radiator hose basically only drains the radiator which is at most 1/3 of the cooling system capacity by my drained fluid measurement and why manual says to remove block plugs. If block plugs not removed, removing the hose from thermostat going to the pump inlet and bending down to pump level will help to drain much of the coolant out of the block and drain reservoir as well. This is most important for those using a 50/50 mix to ensure an adequate ratio. When refilling I found it easiest/quickest to begin filling though engine manifold outlet pipe with top hose removed and helps to prevent the waterfall scenarios. Once block is full fit hose and complete by filling radiator via the reservoir while removed in the raised position per the manual. Check and top off coolant after each drive cycle cool down for the next several days as the air gets out system.

In DiscoCam's situation not having a bleed screw I'd suggest filling radiator via the top inlet hose by removing from tee, loosen/rotate at radiator inlet and pouring directly in until full. Refit hoses and top off reservoir.
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I will try that as I do have a waterfall sound now. Thanks

 

True! In my experience, when a hose cracked on the road and spilled all coolant, it will be hard to determine whether you had enough coolant in all cavities even when it seems the reservoir is filled after the fix. As you drive, temp might rise because of air in the system. You will also find out that the tank will almost be emptied. Just add more coolant in the tank. You will see that the needle return to its normal state. I dont have a bleeder valve now for months and had the disco since new, 13 years and counting, never had heating issues, YET. I get used to the sound of the waterfall and for me, I like that warning sound, meaning, time to add coolant. hehe
Just as number 9 said "Check and top off coolant after each drive cycle cool down for the next several days as the air gets out system" It works for me every time.

 

I am gonna drive it to the gym right now to see how it does. I took it for a test drive a few minutes ago and I felt like the idling rpms were a little low (it has never overheated so I am not sure if that is a symptom). So is it overheating?

There is definitely a waterfall sound that seems to be getting better as I drive it. Top hoses are nice and stiff.

 

I got back from the drive and did not overheat (yay!). The coolant level went down about a half inch. The waterfall sound is also going away so I guess this was a success. Thanks everyone, you saved me once again!

 

My mechanic flushed my D2, refilling with Dex Cool. I have a slow coolant leak and I top up my Dex-Cool with Peak Global Lifetime. That is to say, I mix the two. Been doing this for over 2 years. Never had any issues.

 

Good to know that they can mix a little. I am pretty sure that I got all of the dexcool out but if I didn't, it looks like it will be ok.

 

you should end that with never had an issue YET

 

LOL

I guess we shouldn't forget that these are Discos!