Picture on pg. 99 Manual shows “Min @ ~ 2PM… if a clock face… & “Max” @ ~ 8PM. An arrow on edge going from Min to Max. There is a notch for the red ball just b4 the word “Min” & just after the word “Max.” So on the ‘clock’ the notches are @~ 1PM & 7PM

So, If the red ball is in the “Max” notch you are 100% full & if in the “Min” notch you need to add coolant & probably had a MFD warning message.

I was unable to find any videos or photo online or here showing an actual photo, especially with the level between Max & Min.

If you are ½ way between Max & Min, Is the red ball supposed to be pointing straight up in the center of the clock face?

That is where mine is.

Or should the red ball be pointing somewhere along the side, where the arrow is?

 

My red ball is on MIN most of the time. I have filled it up several times and eventually it goes back to MIN. Told my SA about it a couple of times and they checked the pressure and found no leaks. My SA told me not to worry about where the red ball is and said the only time you should worry is when you get a warning on MFD. The red ball system Porsche has really sucks.

 

Here's what the bobber looks like when it's in the middle. And everything Porsche_nuts says is spot-on. If topping off, just used distilled water. We have over 6 gallons in our systems.

 

My red bobber does not ride the periphery of the circle. If in between min and max, it will be in the middle of the circle. Like where the axis of rotation is for the clock hands.

If you are at min then add 50/50 mix if you have it. If not add distilled water.

 

Thanks! It is as I thought but, I really appreciate the confirmation.

RE when & exactly what to add is another topic.

 

This is a perfect place to discuss what to add and when. No need to start another thread. Are you unsure what to do and how to do it?

 

What you add should be dependent on the specific gravity of your coolant. If it's over the 50/50 glycol mix, add water. If it's at or under the 50/50 density, add 50/50, not water. You have to sample the coolant with a hygrometer to determine the density.

 

OP, look directly down into the hole (with flashlight?), if you see liquid you're okay.

 

One thing is for sure, the coolant cap on the 991 is sooooo much easier to open, close, and seat, when compared to the prior versions on the 996 and 997.

 

Funny you should say that. Mine requires 2 hands sometimes to open. Oil is easy to open.

 

I agree but if someone has no coolant at home, full strength or 50/50 and you are low, topping off with distilled water should make a very little change. Now, if you got a warning that coolant was low, monitor how much you put in. But adding a few ounces of water will not dilute the coolant mix much.

 

Haha. Small hands like Donald? Heck, the 997 required channel locks.

Let completely cool. Less vacuum. Easier to open.

 

I have big hands. Arms maybe not so much. It’s such a tight fit. It’s the notch/detent that seats so tight. At the dealer, they can’t open it until it cools down and I have not left the car over night recently.

 

You should try it with the cabriolet. Very tight fit, indeed.

 

OK, I had assumed there must be other threads on brand/type of coolant & the usual discussion of whether or not to dilute 50:50 vs. just using distilled water to top off.

FWIW for all cars, I have always used a 50:50 distilled water: coolant mix to top off. YMMV. I'm in the hot desert SW. USA.

For Porsche I'm more interested in where to buy (other than the P. dealer.)
My 911 manual specifies on pg. 99, Glysantin G40.
(alternatively: freeze protection in accordance with G12++/VW TL 774 G)
Or Glysantin G65 (alternatively: freeze protection in accordance with G12 evo/VW TL 774 LJ) these freeze protection agents can be mixed.

It is colored PINK.

This one may be correct:
G12++ Coolant - 1 Gallon (3.78 Liters)
Pink ZEREX G-40 formula

Mfg Part #
00004330575
ECS Part #
ES#3420837
$23.91 + shipping
Valvoline ZEREX G-40 antifreeze coolant is premium automotive engine coolant developed by BASF AG and Valvoline. The patent-pending hybrid carboxylate formulation has an extended service life. It incorporates stateof-the-art organic acid technology in an ethylene glycol base for protection of all cooling system metals including aluminum.
ZEREX G-40 meets both the ASTM D3306, D4985, and D6210 specifications. When diluted 50% with water, it protects modern engine components from winter freezing and summer boiling. Valvoline recommends ZEREX G-40 for late model VAG (G12++) vehicles. It is dyed pink to distinguish its unique chemistry from traditional green and yellow coolants.


https://www.ecstuning.com/b-zerex-pa...iABEgIx3fD_BwE

or
Also $19.23 + tax + $7.50 shipping

https://www.carid.com/zerex/g-40-ant...CABEgLN3fD_BwE
Note says does NOT fit Porsche 911 or Macan?!

I think Porsche "brand" (As if they make it LOL) cost $~ $50 for 1 gallon. From my 7-2019 notes.
#00004330105
I just checked & MSRP= $97.47 & sale $64.50. Probably pay MSRP or higher at the dealer.

https://www.suncoastparts.com/product/00004330105.html