scosurf

My 2016 gts just had transfer case replaced. It has 49 k miles ummmmmm
i bought it certified so should be covered until 100 k but this is worrisome
b

twodollardoug

Nah.... Don't worry. If you maintain it, it should last.

jpru2001

So guys...getting a 2016 GTS in the next few days if the PPI checks out today. That being said, first order of business is changing out TC fluid and adding the ford friction modifier, correct?

Thanks guys.

twodollardoug

It can't hurt... I don't used to friction modifyer yet.

jpru2001

So in doing a ton of reading, it seems if you currently have no slippage/clunk/whatever issue...nothing detectable...and from this point forward you keep the fluid refreshed annually, the best guess right now is that you likely will not experience the transfer case failure which our best guess comes from fluid contamination/decomposition first. Am I summarizing this correctly?

twodollardoug

That is why I am not using the additive. Because I am not not having issues. I did add the vent to my TC at 60k miles. And I am at 65k now. BUT.... I'm changing mine every 5k miles also. Seems like everyone else is draining at 10k intervals.

w00tPORSCHE

So far 250 miles since transfer case fluid change and still performing well without any issue. My 958.1 was one of the earliest builds. Here is the link to the thread where I reviewed all the options.

https://rennlist.com/forums/cayenne-...-s-avatar.html

gekko997

I do think TC issues (considering how Porsche changed vent line) is related to environment. I have not experienced any problems thus far, but thanks to this thread I changed my fluid. It was burnt black ('11 CS w/ 66k) and I have no doubt the TC would have shown problems before too long.

Replaced with Ravenol and added the Ford friction modifier for good measure. Additionally, I changed front and rear diffs as well. Rear looked good - front one not so much and very happy I changed it. Fluid was dark and it seemed to be a little low. No signs of leaks, but in my past experience, some fluid normally will flow out of fill plugs from the factory and that did not happen.

mikeearly

This is one "club" I really did not want to join!!

My 2017 Cayenne S with 24711 miles has been acting up occasionally with rough acceleration when starting up with the flow of traffic - so not a fast acceleration. Was in the dealer for state inspection and they confirmed a TC problem and now a replacement TC is on order.....

CarGuyNVA

Yeah, the lottery you DIDN'T want to win. This whole thing has just gone beyond ridiculous. Interested to see how the 9Y0 versions hold up over time.

skinnytirez

Get them to pull an oil sample fo you to submit to blackstone...
https://rennlist.com/forums/cayenne-...sfer-case.html

Quadcammer

welp, the friction modifier helped for a few days, but now its actually acting worse. I'd guess my friction disks are just plumb worn out.

Ordered my parts from awd.tech and will rebuild the case when all the parts come in.

deilenberger

Document it - or since you're in NJ I believe - invite me over, I'll do the photos.. (will be back in NJ in June..)

Quadcammer

Most likely will be doing the work at my buddy's immaculate garage in wall township, so very close to you.

I'm most likely targeting the weekend of June 15.

jpru2001

How long from symptoms to failure? Has anyone tested that?