DIY Changeover valves
Thread Starter
Instructor
Joined: Jul 2014
Posts: 208
Likes: 10
From: Tampa FL
That is a far fetched prospect. I am #3 owner of a car that is 3 years out of warranty. I would never bring an out of warranty vehicle to a dealer. My Porsche Indy can do the same work for a fraction of labor cost. I’d like to learn how to replace them and report back to the forum for other members as this is a typical failure point.
Was just checking if any of any other members have tackled the job.
Was just checking if any of any other members have tackled the job.
Pro
Joined: Oct 2018
Posts: 554
Likes: 166
From: Houston, TX
My heater didn't work when I bought my car. Had 3 bad COV's. $1200 of repairs at a Porsche dealer that I luckily didn't have to cover.
I haven't personally looked for them, but I've read some of them can be quite hard to get to. Once you get there, swapping the valve is cake.
edit: google found me this: http://plenums.blogspot.com/2016/10/...-overview.html
I haven't personally looked for them, but I've read some of them can be quite hard to get to. Once you get there, swapping the valve is cake.
edit: google found me this: http://plenums.blogspot.com/2016/10/...-overview.html
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Advanced
Joined: Mar 2017
Posts: 96
Likes: 7
From: Tampa, FL
How positive are you that the heater doesn't work?
Try this. Get the engine up to temperature so the thermostat opens. Water temp. should be around 193 degrees. Once the thermostat opens, turn the heat to max and the fan all the way up. If you don't feel heat within 5 minutes or so I would agree that the COV is probably defective.
I thought I had a heater problem last year. If you don't use it very often (as we don't in FL) then it may take some additional time to warm up.
Worth a try.
As for replacing the valves...It's pretty straight forward. Remove and replace. You will have to take the rear bumper off, the rear crash structure, air box, and some additional aux. parts. When I installed PSE on my C2S I could see the various valves. They're farther back than the PSE valves. It will be a PITA, but doable. I wouldn't bother swapping out the PSE valves unless they're defective. You'd be spending money for nothing. The PDK valve is in a different location. Obviously. Close to the gear box.
Good luck.
Try this. Get the engine up to temperature so the thermostat opens. Water temp. should be around 193 degrees. Once the thermostat opens, turn the heat to max and the fan all the way up. If you don't feel heat within 5 minutes or so I would agree that the COV is probably defective.
I thought I had a heater problem last year. If you don't use it very often (as we don't in FL) then it may take some additional time to warm up.
Worth a try.
As for replacing the valves...It's pretty straight forward. Remove and replace. You will have to take the rear bumper off, the rear crash structure, air box, and some additional aux. parts. When I installed PSE on my C2S I could see the various valves. They're farther back than the PSE valves. It will be a PITA, but doable. I wouldn't bother swapping out the PSE valves unless they're defective. You'd be spending money for nothing. The PDK valve is in a different location. Obviously. Close to the gear box.
Good luck.
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Thread Starter
Instructor
Joined: Jul 2014
Posts: 208
Likes: 10
From: Tampa FL
Yup, I tried that and also cycled the heat to cool and back to heat...no heat still. The PSE COV is still working. The heat isn’t much of an issue right now, I probably won’t need it until November, and it’s not my DD.
Advanced
Joined: Mar 2017
Posts: 96
Likes: 7
From: Tampa, FL
Have you seen this article?
http://plenums.blogspot.com/2016/10/...-overview.html
I would take it to the dealer first. You never know. I had a $1,300.00 part replaced last year when the car was 3 years out of warranty. Goodwill Warranty they call it.
If you swap the part out yourself, make sure you get the latest part that requires a new wiring harness. That one should have better reliability. But who knows.
http://plenums.blogspot.com/2016/10/...-overview.html
I would take it to the dealer first. You never know. I had a $1,300.00 part replaced last year when the car was 3 years out of warranty. Goodwill Warranty they call it.
If you swap the part out yourself, make sure you get the latest part that requires a new wiring harness. That one should have better reliability. But who knows.
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