Thoughts on AMS findings regarding divorcing coolant

[Shadycrew31]

This is as good as any thread…does anyone have any experience with coolant additives and the realistic impact on lowering engine temps?

Our tstat opens around 195*F, Once open the system is extremely efficient in shedding heat.

There is absolutely no need to upgrade or change the factory cooling system. The supercharger cooling system of course could use an upgrade, but the factory is very efficient.

Bottom line, even if water wetter worked you would see very minimal gains.

[Jones2012s4]

This is as good as any thread…does anyone have any experience with coolant additives and the realistic impact on lowering engine temps?

I used water wetter, caused a brown film to build up in my coolant bottle, flushed my coolant and refilled with Audi VW coolant and noticed a 4-5 degree average drop on my P3 gauge in daily driving.

Water Wetter fail, maybe I did it wrong.

Interesting, I thought that particular product was the safest option.

So did I, used it before, must not like Audi VW OEM coolant. I thought my oil cooler had a bad gasket at first since the brown sludge looked like oil mixing in the coolant and that is one of the few ways it can get in there.

After some research online I found some threads on a Porsche website where the owner claimed water wetter was causing brown sludge to build up in his coolant. He flushed his coolant and didn’t add back water wetter and the sludge went away.

I followed suit and my coolant temps went from 208-210 driving to around 202-205.

[will13k7]

Yes it can be codes via vag to lengthen or shorten. From clicking unlock to stopping on it’s own it’s 20 seconds. If I click lock it’s around 10.

oh, not as bad as I feared. Your right sakimano, I’m in no rush, don’t really even need it for daily driving, but the car does feel a little heat soaked after getting out of traffic. If the AMS kit is shown to outperform by a decent amount, it might be worth the 20 seconds of noise.

[moogas1]

I don’t think it runs for multiple minutes

the video you watched was in a garage, closed, so any sound is accentuated. You can hear him breathing lol. You can also see that it’s the ‘coming home/going away’ thing that turns on accessory lights and starts the pump as well. I belivee you can code that in VAGCOM to be around 10 seconds up to a minute. So I’m reasonably sure if you change that code, it will change how long it’s on.

Again, it’s not minutes. It’s seconds.

Finally, just sit back and watch the first 10 guys get theirs. See if anyone gripes about the pump noise/battery drain etc. There’s no rush…you have intercooling. This is just aiming to improve cooling under harsh driving conditions. It’s not like you need it…so just wait 2 months then decide.

[moogas1]

Sorry getting used to quoting and posting. ;D. Any way, sakimano is right about waiting to see how this system pans out for some of the early users. I’m waiting until the fall at least to decide between the APR CPS and the AMS APLHA but the little wine that AMS’s pump makes is kind of cool. Can anyone say jet-fighter…! Also the questions about water wetter I’ve used it in previous vehiclesThat I’ve owned and it’ll work with the green antifreeze mixed with water. It’s designed to actually work with water alone and help keep everything cool it’s used a lot when tracks will not allow you to use anything but water to keep your engine cool. This is done for safety reasons because antifreeze on a track can be much more slippery than water alone. IT DOES NOT WORK WELL WITH VW G- coolants it will gunk up your system so do not use it. If I’m not mistaken motul makes a product that is supposed to help the cooling system keep temps down in G- coolant cars but I need to call and confirm that there will be no issues as per redlines water wetter.