Clamshell issue? (or I'm losing my mind)

So last week (it could have been early this week - time seems to pass differently as I advance in years), after another fun and fulfilling day at work, I fired up the engine, lowered my windows, then lowered the top, as usual. At the very end of the lowering operation, I heard a distinct pop from the left side as the clamshell was finishing its final part in the operation. As the top was fully open with no warnings, I drove home and waited until I was in the garage to see what was up. Normally I just leave it open overnight, but that pop made me want to observe the closing operation fully. When the clamshell rose, I could clearly see in the mirror that the left (U.S. drivers') side was drooping vs. the right, along with some unfamiliar new sounds from that area. I cringed a little bit, but I allowed the roof to close fully, steeling myself for some DIY work when I got the chance. So, I left the car alone until today. Fast forward to this afternoon: to my great surprise, the top opens and closes smoothly, and the clamshell cover operates normally. I ran it through a couple of cycles to make sure, and it seems to work fine. I was fully expecting the left side clamshell operating rod to be either detached or broken, but instead it looks completely fine. I see no debris or signs of any physical harm. So, what the heck happened? Either: 1) somebody broke into my garage and replaced my car with an identical one, with identical mileage. I regard this as unlikely; 2) The arm magically fixed itself or just popped back into place. I kind of doubt this, as the operating arm doesn't look like it could pop either off or on without help; 3) Somebody broke into my garage and fixed it while I was asleep (again, unlikely); or 4) my mind is going and I imagined the whole thing. Anybody else have something similar happen?

Not sure if this is your problem, but I recall reading that because of the gear ratio, if one of the teeth breaks off or wears, and a similar condition exists on the meshing gear, there could be a slip or jump possibility making the ‘popping’ sound. And it may not occur every time because of the randomness of when the bad teeth oppose each other after cycling. Bad news is, when that occurs it means it will get worse as another tooth breaks off or wears. Hopefully that is not @Sid Kafizz issue and was just a hiccup, never to happen again. .

Is your top tucked in behind the plastic channels on each side above the window? One of my elastic straps popped like that, but it was while closing, not opening. This video will help you diagnose.

That was the very first issue that I addressed when I got the car home back in August of '24. No, it turns out that my problem seems to be a run-of-the-mill case of a broken ball joint on the drivers side. My addled mind wasn't reading the physical signs very well. Turns out the roof will operate with only one functioning operating lever/rod, and I just wasn't seeing things as they actually were. Now I just need to find a replacement ball joint and wait for a sub-100-degree day to try replacing it. TL;DR: I really am losing my mind.

Ouch! The common, but dreaded broken ball joint. At least there is lots of info regarding the replacement of the ball joint and they are easily sourced. As far as the recent heat wave, that is the biggest barrier. I also have a project I’ve been putting off due to this crushing heat. No end in sight, especially here in South Florida. Waiting for a nice overcast day at best. Good luck with your repair.

Amazon or eBay for the ball-joint. The black plastic ones seem the longest lived. Do NOT get the metal ones. They'll never break, but other more expensive parts will since the ball joint is designed as the weakest point in the mechanism, also the cheapest part in the mechanism. You might disconnect the other side, and move the top fully through it's range of motion to make sure no binding is felt.

Thank you, and I hope that the weather cooperates with your project at some point in the not-too-distant future. We've had it pretty easy up here in Chicagoland, but this last week has been tough. Now we have wildfire smoke, too!

I rolled the dice and came up with eBay white ones. That's what's on the car now, so we'll see. I'm treating this as yet another learning experience.

I wonder what the service interval on this is since I live in Florida and put the top up and down between each AX run so as to run the A/C and cool off some.

I too would like to know the answer to this question. I only raise and lower mine as needed, which isn't much. So, what made it fail now? <shrug> I'll replace it and cross my fingers.

Yes good luck and let us know how it worked out. I broke one of the links but that was my fault because I closed the roof while I had some of it disconnected to work on the engine.

The replacement set of two plastic ball joint sockets arrived this morning, so I decided to see if I could handle the replacement. It's not exactly cool here, but it is a lot cooler than it has been so working in the garage probably wasn't going to melt me. I've watched a smattering of YouTube videos on the fix, so I felt fairly confident. All in the process only took me about 40 minutes. Getting the top into service position for the first time was relatively painless, though it didn't give me all that much more access to the left side top lever arm. The old socket had broken cleanly in half at the neck, so pivoting the arm back was easy, allowing the remains of the old part to be removed. The other half came off of the ball joint with the use of a plastic interior prying tool. I had marked the approximate position of the old socket on the arm with a piece of tape, so I screwed the new one into the same spot. This was when I discovered that I couldn't pivot the arm back into position with the socket in place. There just isn't enough room. Rather than loosening the adjustment screw, I removed the arm from the mechanism (thankfully I had a T40 socket in my limited arsenal), worked it back into place and reattached it. Popping the socket back onto the ball was suspiciously easy, requiring only very light finger pressure and only a bit of finagling the top into the right spot, so I'll see how long it stays in place. A quick test of the top shows that it's working fine. Will it last another 15 years/70,000 miles? Who knows? I am almost insufferably pleased with myself, so I'm sure that the engine will explode next time that I take it out for a drive.

Good job; I hope it goes 15/70k My repair was no misery; I moved the top when should not have and broke one the metal pieces.

I was right to be suspicious of how easily the socket popped onto the ball. After just a few open/close cycles it popped off again, and now it barely stays on at all. So, I probably got some crappy plastic parts. Looks like I'm going back in. Anybody got a sure-fire source for these things, without paying for a whole arm? Edit after futzing around with the darn thing some more: Boy, do I feel dumb. A random Redditor prompted me by asking, "are you sure the socket is seated on the ball?" Turns out it wasn't. I wedged my plastic pry bar in better, twisted it to apply more force, then wrenched it a bit more and I was rewarded with a satisfying pop as it properly went into place. I may feel old & stupid, but this is just making me want to do my own work whenever I can. It's fun. And now I can give that eBay vendor some good feedback.

Sorry I knew more about in 2000 when I got my first new Porsche which was a 00 BS which I did a lot of work on myself, Same thing applies my 04 BS but not my 25 Bbase. If you are in a PCA Region, you probably can source someone in the Club. If are not in PCA you should be. I learned much of my Porsche knowledge from PCA member. Back when I started the dealer I used let me go in the shop and talk to the Texts and actual see the stuff in the shop and also go right into the Parts manager's office. That manager used to sell me parts at cost plus 10% in most cases by writing up the orders as for repair shops. It was great but in today's world that will probably never happen. But my current local dealer works with me a lot but not to that extent. They also help the PCA Region do just about everything including paying for pretty much everything I guess that's they are a Porsche Premier Dealer. I should get a commission for speaking so well of they. I am sure there are others that help out in many ways. That's not to say I have not had problems. Of course, most of that their prices.