GT4 G81 Transmission Failure
08-19-2017, 04:39 AM
#947
Mike, I thought somewhere in the pages of this or the other gearbox failure threadit was advised not to drive the car after 3rd gear goes because debris from the failed gear (spline?) may further damage other components???
PS-- 2:02 @ WGI in the GT3 on Trofeo r's wednesday at the GVC-BMW/Niagara PCA event
PS-- 2:02 @ WGI in the GT3 on Trofeo r's wednesday at the GVC-BMW/Niagara PCA event
2:02 is lightning fast in a street car! Great job! How do you like the Trofeo R's compared to Cup 2's?
08-19-2017, 10:00 AM
#948
Nordschleife Master
08-19-2017, 10:43 AM
#949
Three Wheelin'
I suppose anything is possible and I'm not a mechanic or engineer, but I've read that others drove home without issue after third gear failure. I trailered my car home from the Glen, but it drove fine loading and unloading it. Like I said every gear works except third, which is like shifting into neutral.
2:02 is lightning fast in a street car! Great job! How do you like the Trofeo R's compared to Cup 2's?
2:02 is lightning fast in a street car! Great job! How do you like the Trofeo R's compared to Cup 2's?
08-20-2017, 12:24 AM
#950
I would strongly advise against driving your cars home from the track. What has happened on most of these boxes is the ring has dislocated from the gear and has been left floating on the shaft. It's only a matter of time until one of the rings cracks and splits. Then you have 3 or 4 pieces of shrapnel floating around inside the box. Not only could that go through the shafts and destroy the whole gears (potentially voiding the warranty because you kept driving) but it is dangerous. I have seen such a failure on a racecar lock up the wheels at top speed and send the car into a pirouette into the wall, destroying the whole vehicle. Not only might you die, but I guarantee if Porsche finds out the failure happened before the accident and you kept driving their band of lawyers will make sure you don't get a cent for your car. The risk isn't worth it. You guys spend thousands per weekend to go to the track but are skipping a couple hundred dollar tow home?
Wanted to bring this post front and center re driving GT4s home from the track after third-gear failures. It’s the advice to which I adhered. Thank you GTgears. (BTW, Mike from BM, says hello.)
08-21-2017, 06:45 PM
#951
Three Wheelin'
I added this to the other thread
same situation as OP
no warning, shifts felt normal, no notchiness,
4-3 downshift while braking for bus stop at the glen
wondering "why am I redlining it".....no 3rd gear
drove into pits loaded up and drove straight to dealership
i had had told my service manager that this WAS going to happen, and I had a sixth sense it would e today since I opted not to trailer as I ususallyt do😳😳😩😩
late 2016 build
3750 miles
4 track days
mods are suspension, 19" wheels with RE-71's and trying out DSC for the first time--oh well, that didn't turn out too well....
same situation as OP
no warning, shifts felt normal, no notchiness,
4-3 downshift while braking for bus stop at the glen
wondering "why am I redlining it".....no 3rd gear
drove into pits loaded up and drove straight to dealership
i had had told my service manager that this WAS going to happen, and I had a sixth sense it would e today since I opted not to trailer as I ususallyt do😳😳😩😩
late 2016 build
3750 miles
4 track days
mods are suspension, 19" wheels with RE-71's and trying out DSC for the first time--oh well, that didn't turn out too well....
09-09-2017, 04:12 PM
#952
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Don't count on Porsche for any help with replacement if it doesn't break, I sent a letter about an extended warranty specifically on the transmission and this is the response I received.
[Thank you for reaching out to bring this to our attention. Clearly you are a longtime loyal Porsche owner, and I am sorry to read about the concern you have with your 2016 Porsche Cayman GT4.
Porsche Cars North America offers a 4 year/50,000 mile, whichever comes first, New Car Limited Warranty. During this period, we stand behind our vehicles to address manufacture shortcomings. Please be advised that you are still under the parameters of this warranty, and should a concern appear, it will be addressed accordingly under the terms of this warranty.
Mr. Bocchieri, I hope that this offers peace of mind. I appreciate you providing us the opportunity to respond to your concerns, and hope that you have a great day.
Kind Regards,
Douglas A. Toth Jr.
Porsche Specialist, Porsche Contact Center
Porsche Cars North America, Inc.
One Porsche Drive
Atlanta, GA 30354 ][/QUOTE]
[Thank you for reaching out to bring this to our attention. Clearly you are a longtime loyal Porsche owner, and I am sorry to read about the concern you have with your 2016 Porsche Cayman GT4.
Porsche Cars North America offers a 4 year/50,000 mile, whichever comes first, New Car Limited Warranty. During this period, we stand behind our vehicles to address manufacture shortcomings. Please be advised that you are still under the parameters of this warranty, and should a concern appear, it will be addressed accordingly under the terms of this warranty.
Mr. Bocchieri, I hope that this offers peace of mind. I appreciate you providing us the opportunity to respond to your concerns, and hope that you have a great day.
Kind Regards,
Douglas A. Toth Jr.
Porsche Specialist, Porsche Contact Center
Porsche Cars North America, Inc.
One Porsche Drive
Atlanta, GA 30354 ][/QUOTE]
09-09-2017, 04:31 PM
#953
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When does it get to be class action lawsuit time, any lawyers want to chime in? I would be happy with an extended warranty specifically for the transmission.
They did it for the GT3 engine.
They did it for the GT3 engine.
09-09-2017, 05:14 PM
#954
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991 always had ZF, used to know some people at ZF. But it's also covered in the public domain: http://www.autobild.de/artikel/porsc...--1226794.html
996 MT was from Getrag, 997 MT mainly Aisin (GT2/3 and Turbo Getrag I believe) and 997 PDK from ZF. Not sure about the MT for 997.2, but believe they kept the Aisin as MT throughout the entire 997.x series. Not sure about the slushboxes for 911 up until 997.1.
996 MT was from Getrag, 997 MT mainly Aisin (GT2/3 and Turbo Getrag I believe) and 997 PDK from ZF. Not sure about the MT for 997.2, but believe they kept the Aisin as MT throughout the entire 997.x series. Not sure about the slushboxes for 911 up until 997.1.
09-16-2017, 02:35 PM
#955
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I just joined the club, 2016 GT4 owner, 11,600km, 2 track days.
As I was apexing a roundabout, I up shifted from 2-3, heard a loud clunkering sound, and it was gone, 3rd was gone. instantly I took it to the dealer and I mentioned this is a common issue and I expect a new gearbox.
May 2016 build
late June 2016 delivery
Id also like to note that I experienced the faulty suspension when I first received my car, which was replaced without issues.
I'm out of Saudi and this issue seems to be gaining momentum, unfortunately.
As I was apexing a roundabout, I up shifted from 2-3, heard a loud clunkering sound, and it was gone, 3rd was gone. instantly I took it to the dealer and I mentioned this is a common issue and I expect a new gearbox.
May 2016 build
late June 2016 delivery
Id also like to note that I experienced the faulty suspension when I first received my car, which was replaced without issues.
I'm out of Saudi and this issue seems to be gaining momentum, unfortunately.
09-16-2017, 08:56 PM
#956
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Location: Chicagoland USA "Turn On, Turn In, Track Out"
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I think I now understand where the communication breakdown occurred. This gearbox has existed, in a Porsche version, since 2005. It has existed in it's current version, with revised bellhousing and integral oil pump/cooler since the 981 came out. It was not a NEW gearbox for the GT4. You appear to be treating it as if the GT4 was some brand new gearbox and that this problem is 100% GT4 specific. It's not.
When I say they made a design change to 3rd gear I am not talking exclusively about GT4s. I am talking about the complete production line of the gearboxes. Prior to the GT4 I had never in my life seen a welded dog on a 3rd gear. That includes the 981s we had been inside. 5th and 6th have always been welded. 3rd and 4th were splined.
When did they change it? I dunno. But when I say that they changed the design of 3rd gear that's not a question mark. That's not open to debate or doubt. So when you say "who knows?" and "nobody really knows"? my response is "I do" and "You're wrong". Understand where I'm coming from now???
When I say they made a design change to 3rd gear I am not talking exclusively about GT4s. I am talking about the complete production line of the gearboxes. Prior to the GT4 I had never in my life seen a welded dog on a 3rd gear. That includes the 981s we had been inside. 5th and 6th have always been welded. 3rd and 4th were splined.
When did they change it? I dunno. But when I say that they changed the design of 3rd gear that's not a question mark. That's not open to debate or doubt. So when you say "who knows?" and "nobody really knows"? my response is "I do" and "You're wrong". Understand where I'm coming from now???
09-18-2017, 06:03 PM
#957
Rennlist Member
Add me to the list. Happened this weekend. 3rd gear gone.
Just over 9,000 miles. March 2016 build date.
Silver lining: my dealer says that that Porsche is now shipping the updated/stronger Getrag 6-spd unit since they've gone through their stock of the old units.
Also, I got this for a loaner. Love my dealer.
Just over 9,000 miles. March 2016 build date.
Silver lining: my dealer says that that Porsche is now shipping the updated/stronger Getrag 6-spd unit since they've gone through their stock of the old units.
Also, I got this for a loaner. Love my dealer.
09-18-2017, 10:30 PM
#958
Three Wheelin'
Add me to the list. Happened this weekend. 3rd gear gone.
Just over 9,000 miles. March 2016 build date.
Silver lining: my dealer says that that Porsche is now shipping the updated/stronger Getrag 6-spd unit since they've gone through their stock of the old units.
Also, I got this for a loaner. Love my dealer.
Just over 9,000 miles. March 2016 build date.
Silver lining: my dealer says that that Porsche is now shipping the updated/stronger Getrag 6-spd unit since they've gone through their stock of the old units.
Also, I got this for a loaner. Love my dealer.
09-20-2017, 07:22 AM
#960
Rennlist Member
Your dealer should be able to tell you if the replacement unit was from the last of the old stock, or the newer design.