Coolant game streaming out

[Heiko]

Remove the cover under the two caps...



The just fold up the wire clip on the pressure valve...



Put the oil cap back on and start it up.....
When its running and you look into coolant reservoir you'll see the water circulate through it... any big amounts of air should flush out....

H

[rdass623]

sometimes it is the expansion valve which gets stuck open (so i have read). i had a similar incident, which i could not duplicate. i also actuated the purge valve quite a few times (pulled on the wire ring opening and closing the valve). i just topped off the reservoir purged the air from the system and it has been fine for the past 3k. i also closely monitor the engine temp and constantly looked in the rearview mirror for the next couple of weeks for the tell tale signs of leakage.

[MacGrad]

I'm having the same coolant leak issues, and they are occurring on a "frequently infrequent" basis -- the car won't leak for a few days, and then it will drain itself of the coolant from a spot near the right rear tire. When it's leaking, you can see the drip trail on the ground when the car has been moving.

Since I'm not having any issues with moisture in the trunk, I would assume (from what I've read) that it's not a leaky tank. Would a problem with the expansion valve cause this type of behavior and, if so, is this an easy fix?

(My mechanic couldn't isolate the issue, and wants to replace the coolant reservoir. I'd prefer not to, especially if this isn't the root cause of the problem.)

[Heiko]

I'm only commenting on your note below as I'm not sure why your mechanic wants to change out the coolant reservoir.... If the reservoir itself isn't leaking or has any cracks then there is no point in replacing it... I haven't seen many of the valves fail and they do come as part of the tank assembly when you order a new tank. If any air gets into the system (ie the cap isn't working right) then with less pressure the boiling point of your coolant will drop (meaning the coolant will boil faster)... you may even have some bubbles in the system in result of this..... I would say open the valve and purge the system, fill it to capacity, put a new cap on the reservoir and you should be fine...
H

Originally Posted by MacGrad

I'm having the same coolant leak issues, and they are occurring on a "frequently infrequent" basis -- the car won't leak for a few days, and then it will drain itself of the coolant from a spot near the right rear tire. When it's leaking, you can see the drip trail on the ground when the car has been moving.

Since I'm not having any issues with moisture in the trunk, I would assume (from what I've read) that it's not a leaky tank. Would a problem with the expansion valve cause this type of behavior and, if so, is this an easy fix?

(My mechanic couldn't isolate the issue, and wants to replace the coolant reservoir. I'd prefer not to, especially if this isn't the root cause of the problem.)

[Steve Tinker]

What H said above, but whenever I have burped the system, I've found that leaving the valve in the open position for 3 or 4 complete heat cycles gets rid of all the small air pockets lodged in the cooling system.
In fact, I normally leave the valve open for a few days, topping up little by little every day until the level stabilises before flipping it back.

[Slate 01]

You guys are great thank you so much. Wow, pictures and everything, you guys go above and beyond. I'll keep you posted over the next few days.

[Heiko]

Sometimes pictures are easier than explaining
I hope you get it sorted out.
Cheers,
H

Originally Posted by Slate 01

You guys are great thank you so much. Wow, pictures and everything, you guys go above and beyond. I'll keep you posted over the next few days.

[Slate 01]

Thank you to all of you that were so willing to help. New cap, opened the valve took a drive with it open, got up to temp and shazaam no more leak. Thank you all so much.

I just installed topspeed test pipes and new aftermarket muffler literally just before this leak problem showed up. So anyone want to take a guess what I will be doing this weekend?

Thanks Porsche Brethren!

to you all!

[Heiko]

Glad you got it sorted out...