718 GT4 clutch slipping is a thing...
Discussion
8700 miles, clutch is on its way out. Anyone else yet? I say this as I guarantee there will be more as owners clock up the miles. Ninemeister have a solution.
https://youtu.be/T4NHhw-DsCY
https://youtu.be/T4NHhw-DsCY
I really doubt the clutch has worn out in that few miles. I'm with the other commenter on the vid, that there's some problem with the release mechanism. If the clutch HAS worn out, I still think it's due to some fault that has been allowing it to slip slightly, although I'd expect you to have noticed that.
I'll put my speculation hat on and say that part of the problem 'might' possibly be the torque limiter in the clutch slave cylinder. This puts a very small delay on clutch release via a moveable valve disc which controls fluid flow in the line if you pop the clutch, such as foot slipping off the clutch. It is to stop shock loading the transmission. If its a bit lazy in some cars it could possibly encourage more rapid clutch wear.
How on earth would you rule that in or out though?
I fear that Porsche will pull my pants down on this, but I'll try to stay positive. Waiting to hear back if they can pre-approve warranty repair based on the video.
How on earth would you rule that in or out though?
I fear that Porsche will pull my pants down on this, but I'll try to stay positive. Waiting to hear back if they can pre-approve warranty repair based on the video.
I had the same experience if I rushed the change in a 4.0 GTS at the silverstone Porsche experience centre. Not quite as bad but if I rushed it the revs would build like that with clutch fully up. I’m sure that car will have had its clutch absolutely rinsed as it was a demo track hack but I agree it’s a thing.
I had this happen on the Porsche Experience Day (PEC). This happened on a hard launch and the clutch completely disengaged so the engine was free revving. I asked the instructor about this and he says that the manual 718s have a clutch protection system in place where by if you don't fully engage the clutch or, the the PCM detects a certain amount of slippage then the system will disengage the clutch until you come completely off the power and then back on.
This happened to me in the morning, and I drove the car for the rest of the day pretty hard making sure my gear changes were clean and I wasn't hovering over the clutch pedal and I never experienced it again, could it be this you are experiencing?
This happened to me in the morning, and I drove the car for the rest of the day pretty hard making sure my gear changes were clean and I wasn't hovering over the clutch pedal and I never experienced it again, could it be this you are experiencing?
Yes I can drive around it. When it started doing this at Goodwood, two weeks ago, I slowed down the shifting and the slip stopped, but you shouldn’t have to. My ‘eager’ shifting is not rushed but the clutch really doesn’t like it one bit.
Those nice people at Ninemeister are putting an uprated Sachs clutch in it next month. In the meantime I have another track day at Goodwood in a couple of weeks which I hope I can nurse the clutch through.
To add:
Pedal travel is normal and Porsche did pull my pants down. Self funding a clutch after 800 miles of ownership *sigh*
Those nice people at Ninemeister are putting an uprated Sachs clutch in it next month. In the meantime I have another track day at Goodwood in a couple of weeks which I hope I can nurse the clutch through.
To add:
Pedal travel is normal and Porsche did pull my pants down. Self funding a clutch after 800 miles of ownership *sigh*
Edited by maximtaylor on Tuesday 14th June 19:25
arcamalpha said:
Is it slipping under load when clutch is ‘up’ or just when changing gear?
Has an OPC tech reproduced it?
First part of your question is all explained in the video description.Has an OPC tech reproduced it?
Second part - I can reproduce it at will, hence the video. OPC tech could but not legally on the road due to speed.
maximtaylor said:
I get that, but at what point does 'reasonable' play a part. If you leave the forecourt and it slips the next day...next week.....next month? I don't think this is defined anywhere?
It's not defined, it's open to interpretation to allow common sense to prevail I guess.Isn't there some legal "thing" about an issue coming up within 6 months (?) after purchase that it was probably there at the point of sale and so you could use that argument?
May be worth a quick chat with an expert on these things.
Twinfan said:
It's not defined, it's open to interpretation to allow common sense to prevail I guess.
Isn't there some legal "thing" about an issue coming up within 6 months (?) after purchase that it was probably there at the point of sale and so you could use that argument?
May be worth a quick chat with an expert on these things.
You absolute Gem Isn't there some legal "thing" about an issue coming up within 6 months (?) after purchase that it was probably there at the point of sale and so you could use that argument?
May be worth a quick chat with an expert on these things.
Consumer Rights Act 2015. Under 6 months. Breach notice just sent to dealer.maximtaylor said:
You absolute Gem Consumer Rights Act 2015. Under 6 months. Breach notice just sent to dealer.
Yes, absolutely. Great to see consumer law might act in favour of the consumer. If I remember right, for the first 6 months of ownership it's up to the seller to prove there wasn't a fault at the point of sale. After that it's up to the buyer to prove that there was. I think they have to sort it out for you, warranty item or not. Consumer Rights Act 2015. Under 6 months. Breach notice just sent to dealer.Liam
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