[Car & Driver] What We Learned After Testing a Porsche 718 GTS 4.0 40,000 Miles
#31
Burning Brakes
If you’re confident in your ability, then don’t sweat it and buy what you like. You’ve got four years of Porsche warranty behind you if there are any defects, which I doubt there’d be. The warranty wouldn’t cover normal wear on the clutch; but if something goes wrong (like slippage that shouldn’t be there) and after taking apart they see the thing wasn’t abused and was operated correctly, it would be a warranty job. All this applies even more firmly if you’re not planning to track your car.
What are the statistics on this? I haven’t seen many of these incidents, but I could be wrong.
With all this being said, I’ll share one small snippet of my own experience. Owned many manual Porsches — never experienced a problem. Recently there have been 981 Spyder, 991.1 GTS, 991.2 manual GT3, and 991.2 Carrera S. In particular, I have a fairly early 981 Spyder (October 2015 build). I haven’t had any of the gearbox issues that were known to this variant run (Spyder and GT4) and in particular many GT4 guys. When I dropped my 8k-mile transmission this past September and sent it off to be re-geared, the guys who opened it up said the gears and synchros looked like they were never used compared to what they have seen opening up many, many gearboxes over the last several years they’ve been doing this regear. Part of what they do is replace worn parts since the thing is open, but there was nothing to replace on mine. And I don’t baby the thing: I drive it fairly hard whenever the occasion to do so is available. What I do is not crank on the synchromesh on downshifts — I do double clutch downshifts: every time. I don’t abuse the thing. Slamming the thing into third gear or second gear down from fifth or sixth is the wrong way to operate a manual transmission: a double clutch downshift is the proper way to skip multiple gears. It’s also better to double clutch on downshift all the time and not just some of the time. Some guys even double clutch on upshifts.
Keep in mind the gear ratios on manual are not favorable and the PDK gear ratios are more favorable. You can go to <<automobile catalog dot com >> to review gear ratios and see if this influences you.
PDK
<https://www.automobile-catalog.com/auta_details1.php#gsc.tab=0>
Manual
<https://www.automobile-catalog.com/auta_details1.php#gsc.tab=0>
Lastly, keep in mind that if you change from manual to PDK even before your lock, you could risk going to the bottom of the pile and having your production moved out a month or more. How do I know? My PDK 2022 Boxster GTS (which I still own) was an April, 2022 build. In late February, a few weeks before lock, I changed it from manual to PDK. The day after I did that, the car came a June build for July delivery. Not saying that would happen to you, but tinkering with a major content like transmission can be tricky.
Why did I switch to PDK? I was thinking it’d be nice if my girlfriend could have at least one opportunity to drive a fun a car that I own when we do our road trips (and provide me some relief). At the time, I didn’t know about the re-gear stuff (was just totally oblivious to this topic for some reason). Knowing what I know now, I would have done the manual and would simply have spent the extra cash to regear the thing. (Be advised it’s not cheap and well north of $10k but in my opinion worth every penny). She hardly ever says yes when I offer her to drive the thing, and I end up driving all the time anyway on our road trips.
Good luck.
Last edited by 348SStb; 03-05-2024 at 10:46 AM.
#32
Rennlist Member
5K for a new clutch is not all that bad if it happened once during the lifetime of the car with me. My friend, a few years back, bought a used 996 with a manual and it still had the originial clutch after >15 years. Eventuallly he had to get a new clutch which cost him 5k at an independent shop in NH. It was a fun car to drive. As long as my engine stays healthy, I am fine. I know sooner or later I will pay for some repairs none of which are likely to be cheap.
#33
Rennlist Member
PDK is not without its faults either. 981 PDKs are seeing failures; many of which are associated to failures of some internal sensors. There are only a few indy shops, like Atlanta Speedwerks, who are willing to dig into the PDK and replace the sensors and other internals. The dealerships swap out entire PDK transmissions. Many aftermarket vendors are selling dedicated PDK clutch and gearbox fluid coolers, deeper PDK pans with cooling fins, etc for those that are tracking regularly to mitigate some of these issues with harder than street usage.
That said, I have had both transmissions across multiple cars and currently track a 981 PDK Cayman S....so far, so good.
Does anyone know if there have been updates and upgrades made by Porsche as they've gone from the 981 into the 718 generation? I expect there have been, I just don't know what those may be.
That said, I have had both transmissions across multiple cars and currently track a 981 PDK Cayman S....so far, so good.
Does anyone know if there have been updates and upgrades made by Porsche as they've gone from the 981 into the 718 generation? I expect there have been, I just don't know what those may be.
#34
Burning Brakes
PDK is not without its faults either. 981 PDKs are seeing failures; many of which are associated to failures of some internal sensors. There are only a few indy shops, like Atlanta Speedwerks, who are willing to dig into the PDK and replace the sensors and other internals. The dealerships swap out entire PDK transmissions. Many aftermarket vendors are selling dedicated PDK clutch and gearbox fluid coolers, deeper PDK pans with cooling fins, etc for those that are tracking regularly to mitigate some of these issues with harder than street usage.
That said, I have had both transmissions across multiple cars and currently track a 981 PDK Cayman S....so far, so good.
Does anyone know if there have been updates and upgrades made by Porsche as they've gone from the 981 into the 718 generation? I expect there have been, I just don't know what those may be.
That said, I have had both transmissions across multiple cars and currently track a 981 PDK Cayman S....so far, so good.
Does anyone know if there have been updates and upgrades made by Porsche as they've gone from the 981 into the 718 generation? I expect there have been, I just don't know what those may be.
#35
That first statement is definitely not accurate. True, PDKs are *usually* very reliable - but when they aren't, the only viable option for most of us is a full PDK replacement for $25K. Unless you happen to live close to Atlanta Speedwerks (https://www.atlspeedwerks.com/transmissions), who seems to be the only company able to repair them with a good track record.
$4900 should cover about 2.5 PDK fluid changes, which is my strategy to (hopefully) ensure long-term PDK reliability.
$4900 should cover about 2.5 PDK fluid changes, which is my strategy to (hopefully) ensure long-term PDK reliability.
#36
PDK is not without its faults either. 981 PDKs are seeing failures; many of which are associated to failures of some internal sensors. There are only a few indy shops, like Atlanta Speedwerks, who are willing to dig into the PDK and replace the sensors and other internals. The dealerships swap out entire PDK transmissions. Many aftermarket vendors are selling dedicated PDK clutch and gearbox fluid coolers, deeper PDK pans with cooling fins, etc for those that are tracking regularly to mitigate some of these issues with harder than street usage.
That said, I have had both transmissions across multiple cars and currently track a 981 PDK Cayman S....so far, so good.
Does anyone know if there have been updates and upgrades made by Porsche as they've gone from the 981 into the 718 generation? I expect there have been, I just don't know what those may be.
That said, I have had both transmissions across multiple cars and currently track a 981 PDK Cayman S....so far, so good.
Does anyone know if there have been updates and upgrades made by Porsche as they've gone from the 981 into the 718 generation? I expect there have been, I just don't know what those may be.
You are correct, the 981 PDK's did have sensor issues.
I do know Porsche fixed the PDK issues with the 718. My race shop (who sees a TON of Porsches, a lot of them track cars) has not seen a single 982 PDK issue so far. I am keeping my fingers crossed it remains that way.
I just did a fluid flush and filter change at my 30K service. I plan to do that every 30K since I want/plan to keep mine well into 100k+ miles.
Last edited by TRZ06; 03-05-2024 at 04:29 PM.
#37
Burning Brakes
You are correct, the 981 PDK's did have sensor issues.
I do know Porsche fixed the PDK issues with the 718. My race shop (who sees a TON of Porsches, a lot of them track cars) has not seen a single 982 PDK issue so far. I am keeping my fingers crossed it remains that way.
I just did a fluid flush and filter change at my 30K service. I plan to do that every 30K since I want/plan to keep mine well into 100k+ miles.
I do know Porsche fixed the PDK issues with the 718. My race shop (who sees a TON of Porsches, a lot of them track cars) has not seen a single 982 PDK issue so far. I am keeping my fingers crossed it remains that way.
I just did a fluid flush and filter change at my 30K service. I plan to do that every 30K since I want/plan to keep mine well into 100k+ miles.
Can you share some details about your PDK clutch fluid change? Which year and model do you have? How many miles were on your car? (I do not assume you have 30k). Age of car from in-service? How did the pdk fluid look? Number of labor hours for the job? Thank you!
I see my 2022 718 GTS service manual says to change the PDK clutch fluid at 12 years or 120k miles!
#38
Three Wheelin'
If i do find that my phone gets in the way then i'll move it to a jacket pocket or my hoodie pocket so its never in the way
#39
Thanks for mentioning this.
Can you share some details about your PDK clutch fluid change? Which year and model do you have? How many miles were on your car? (I do not assume you have 30k). Age of car from in-service? How did the pdk fluid look? Number of labor hours for the job? Thank you!
I see my 2022 718 GTS service manual says to change the PDK clutch fluid at 12 years or 120k miles!
Can you share some details about your PDK clutch fluid change? Which year and model do you have? How many miles were on your car? (I do not assume you have 30k). Age of car from in-service? How did the pdk fluid look? Number of labor hours for the job? Thank you!
I see my 2022 718 GTS service manual says to change the PDK clutch fluid at 12 years or 120k miles!
No clue on the fluid condition, I didn't think to ask.
They flushed the fluid and replaced the external filter.
#41
Rennlist Member
Atlanta Speedwerks has done over 100 PDK repairs according to their website, so even that's not a large number - but I'd 100% trust them based on what I've read so far.
PDKs have been around for 15 years now, and I suspect (but don't have hard data) that each dealership has done at least 1 full PDK replacement per year. With ~200 dealerships nationwide, that's 3,000 PDK replacements in the US alone.
But I'm sure the PDK failure rate is well under 1%, so keeping my fingers crossed! Plus, I got the Porsche extended warranty, simply as insurance against a PDK or engine failure out of the factory warranty period.
#42
Three Wheelin'
I'm pretty sure you are wrong about this. I keep up with this RL thread, and there are not a lot of success stories when it comes to repairing PDK transmissions by anyone but a very small handful of experts.
Atlanta Speedwerks has done over 100 PDK repairs according to their website, so even that's not a large number - but I'd 100% trust them based on what I've read so far.
PDKs have been around for 15 years now, and I suspect (but don't have hard data) that each dealership has done at least 1 full PDK replacement per year. With ~200 dealerships nationwide, that's 3,000 PDK replacements in the US alone.
But I'm sure the PDK failure rate is well under 1%, so keeping my fingers crossed! Plus, I got the Porsche extended warranty, simply as insurance against a PDK or engine failure out of the factory warranty period.
Atlanta Speedwerks has done over 100 PDK repairs according to their website, so even that's not a large number - but I'd 100% trust them based on what I've read so far.
PDKs have been around for 15 years now, and I suspect (but don't have hard data) that each dealership has done at least 1 full PDK replacement per year. With ~200 dealerships nationwide, that's 3,000 PDK replacements in the US alone.
But I'm sure the PDK failure rate is well under 1%, so keeping my fingers crossed! Plus, I got the Porsche extended warranty, simply as insurance against a PDK or engine failure out of the factory warranty period.
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slilley (03-07-2024)
#43
Rennlist Member
It's also interesting that the 4.0 GTS required a new clutch from what ??? ............... ABUSE !!!
Also, it's interesting that a Authorized Porsche "Service-Department" didn't have immediately on hand the Correct {Spark-Plug-Tool}.
Personally, given the above ^^^ that Porsche Dealership would be the LAST I would be taking my GT4 to, ever.
Goes to show all of us how testers actually treat even a new Porsche 4.0 GTS !!!
Terry
USA
Last edited by tigerhonaker; 03-06-2024 at 10:53 AM.
#44
Three Wheelin'
That was an interesting Long-Term-Test by Car & Driver.
It's also interesting that the 4.0 GTS required a new clutch from what ??? ............... ABUSE !!!
Also, it's interesting that a Authorized Porsche "Service-Department" didn't have immediately on hand the Correct {Spark-Plug-Tool}.
Personally, given the above ^^^ that Porsche Dealership would be the LAST I would be taking my GT4 to, ever.
Goes to show all of us how testers actually treat even a new Porsche 4.0 GTS !!!
Terry
USA
It's also interesting that the 4.0 GTS required a new clutch from what ??? ............... ABUSE !!!
Also, it's interesting that a Authorized Porsche "Service-Department" didn't have immediately on hand the Correct {Spark-Plug-Tool}.
Personally, given the above ^^^ that Porsche Dealership would be the LAST I would be taking my GT4 to, ever.
Goes to show all of us how testers actually treat even a new Porsche 4.0 GTS !!!
Terry
USA