Targa Roof Error 2024 GTS

[billrush]

About 1 out of ten times when opening the top, it stops half way open. On the dash is an error notice which says “ Targa Roof Error, driving permitted, service necessary”. If I select close, it will close and open later in the day. Of course I will take it in, but that’s a pain. Any others had this problem?

[wkearney99]

half-way on which part? I have noticed on my '18 Targa that if there's been any rain/moisture the seal where the roof weatherstripping meets the windshield weatherstripping the two will sometimes stick together... just enough to throw an error. If I remember the weather's been wet I'll give the roof a little nudge upward just as it starts the move process for it. Then go inside and get the lube.

Porsche recommends a Krytox (GPL105) lube be rubbed on both surfaces periodically. It's a stupid-expensive little bottle, but a little goes a LONG way. I believe it's the same sort of problem with the rubber bumpers under the wing flaps.

Understand that if you switch to some other lube you may risk the longevity of the rubber. Especially silicone, as those lubes are a one-way trip. You can never remove silicone and some formulations are not good for some rubber compounds. Can't cite specific combos, as there's no published specs on the compounds Porsche used for these pieces. Some folks have 'gotten away with' alternatives and perhaps will never run into problems.

[billrush]

Thanks Kearney. So I said opening and half way. It's a 19 second process. I looked up a YouTube video of it opening.
The targa roof has already separated from the windshield so it doesn't seem to be the seal you mention, though it happens more the day after I wash the car. I've heard others say they nudge the top when opening. I assumed that was while standing in the back. I haven't tried that yet

[wkearney99]

Yes, I have only had to nudge at the start of the roof panel being lifted from the windshield frame.

I only asked about when because half-way of the whole operation is different than half-way of just the overhead roof panel section making it's movement. Which sounds like it's the roof movement part, correct? I have never had mine halt during that part of the process. I'd wonder if something has gotten down into the b-pillar areas where the mechanisms move and might be impairing their movement.

[billrush]

Thanks much for reminding me that where it stops is a big part of the diagnosis. I will start taking photos so by April 17th i can show the dealer. You'll make me look very smart. (sort of).

Yes, the roof is well underway and I think the glass is on the way back.

[wkearney99]

My '18 handles it in stages (and iirc, so does the 992 series). First it moves the glass back and stops, then opens the bar flaps while the the roof panel moves and stops, and then finally closes the glass. The top and glass are never both moving at the same time. A quick search on youtube might let you see how yours is acting in comparison.

Yes, it's always good if you can reliably repeat and describe the problem clearly when taking it in for service. Repeatability is key and it sounds like yours hasn't been?

[billrush]

Yes, glass back, top back, glass forward. Seen it many times in real life and on YouTube. I believe mine always stops in the Glass forward phase. The error message even says “driving permitted” but I would not drive with the glass levitated and catching wind. Now I will photo to verify. Thanks

[jpginmia]

So I have a 24 Targa and got the targa roof error this am. I washed it late yesterday personally with care and love and didn't even scrub or spray the roof too much. Soon thereafter I put it in the garage for the night. This am when I went to take the targa off I get the error message once the glass is off but before the roof came off. It unlocked the latch then stopped. I hit the other button to close and it did. After a few tries it started working fine again. Long and the short of it I think the rubber is dry and needs lube.

[billrush]

Thanks JP. So you have the same year as mine with a similar problem. But I think mine stops later in the opening cycle than yours. Is this the first time it happened? How old is your car. Mine happened in the first month.

Do you by chance have the Mods4cars Top module? Know what it is? I don’t think it’s causing my error message but want to make sure.

[jpginmia]

Yes mine is a 2024 Targa 4 2500 miles Received in August off the boat. First time happened was today and as said, day after a late day car wash. When I got to office today after the issues at home, no issues closing it. I ordered some rubber lube stick thing called Gummi Pflege Stift' Rubber Care Stick - 3.4 fl. oz that I recommended online. Think the water may have dried rubber and it got stuck. we shall see. Mine is a custom order but stock No module that I know of or paid for.