Thanks to you guys I just ordered the bottle of fluid and two plugs. I only have 13.5K but would like to do it by 20K maybe during an oil change time.
Now it s time to vent, the $##$#! dealer wanted $95 for the quart and $33 per plug. Needless to say it s almost half that price online.

 

Great thread
So after spending time looking at this an thinking about it I did a ton of research and found something that I missed in the course in doing all of my own services
The 40K maintence has the PIWIS read out the "transfer gear wear integrator"
Following up on the PIWIS website I found that if it reads > 145kwh then you change the transfer gear fluid and reset the integrator

Also, Porsche has had a ton of problems with the transfer gear/case and have an updated part number to replace it

I now need to get home and see if the NT510 will read out that value

 

I believe this is measuring clutch wear in the transfer box. If the clutches are worn then fluid will be contaminated with friction material. I would just do it on a regular interval. Better to has fresher fluid in there.

 

TtMacan,
I took my cover off to clean it and that enabled a few pics of my new Tcase.

Question, the cable, or conduit in the pic , is that the control cable ? Or added vent now.
Thx

 

That is the wiring harness. It was internal baffles installed I believe. Also looks like that’s the old part number?? New one has an X I believe. Here is a pic of the vent. Small rubber nub on the right.

 

Interesting on the p/n Tt.

I can’t imagine them putting in a old style one ???

I will post a pic of the service report in a bit.....it had a few p/n’s.

Maybe someone can decipher it

 

A is latest, X means replacement I was told.
Now I m guessing and think AX means a new style replacement.
B= old non updated case.
https://www.macanforum.com/forum/complaints/140338-replaced-macan-transfer-cases-21.html

 

So here is the service paperwork.
I have no idea , LOL

 

Yup, AX, new style replacement like I stated above.

 

The ports look different as well....at least the drain. I will post my old one .

 

Here’s my old TC. I don’t see that crappy recessed Hex bolt any more....

Sent from my iPad using Tapatalk

 

Any idea what
“Re and re centre cover” refers to tt ?

 

That’s just the splash shield. Mine is a 2015 and I have the part number with an A. Not b or ax. So I wonder if mine has already been replaced?

 

Wouldn’t that be sweet !!
Were the new ones even around in 2015 though ?..


We need more pics from people who have had the replacement performed to verify this labeled p/n

Step up members


Sent from my iPad using Tapatalk

 

I agree, please take pics of your TC. I’m doing my TC in the next 2 weeks and will take pics of whatever is helpful. I’m a 2018.

 

Well the nt510 does do the integrator.

At 115,000 it is 137

Will do the transfer case fluid at 120,000 service

 

Great find !! +1 for foxwell.

Did you see if it can access Air Suspension by chance ?

 

I looked and not sure. Could not find anything that said air suspension but did have one category that said level. But when I tried to open it said please install

So a definite maybe

 

How is the brass fitting connected to the TC vent? Maybe I don’t understand what I am looking at but it looks like there is hose between the TC vent and the brass 1/4“ fitting to the air lines for the ARB breather. How does the hose connect to the TC case vent or similar vent in the diff?
Thanks!

 

Belated thanks to ttmacan for the write-up and tech info. I just finished changing the TC fluid in our '15 Turbo at 28,000 miles. Got only a total of 480cc out of both the drain and the inspection fill ports. After installing the new drain plug, I could only put in about 300cc at the fill port before it started overflowing so I installed the new fill plug, removed the rubber vent plug and filled the remaining fluid down the breather tube. My MityVac wasn't strong enough for the job as a pump so I resorted to simply using a 20cc syringe with a 4 inch length of tubing. It was tedious but effective. Next time I'll find a larger syringe.

 

On a similar topic, I see that there's a new p/n for the drain plus: 95b301115 vs the 95530111501 we've been using. It costs more and I believe it may be a magnetic plug. Is this for the later series Macan or is it applicable to the entire range? Perhaps they believe that capturing some ferrous particles may prolong the life of the TC.

 

My understanding is that water/moisture gets in the TC fluid causing the premature failure.

 

I just bought the two plugs (95530111501) and the TC Fluid with the updated part number yesterday.

Will be exchanging the fluid this weekend! Im not sure what the new plug number is, but mine is a 2015 Turbo and ill be sticking to the og DIY outlined here.

Like jzwu said above, its water that makes the fluid go bad..but im sure a magnetic plug wouldnt hurt

 

I can understand a vehicle subjected to a flood but, when you consider the height of the vent tube, it would seem highly unlikely that moisture alone has caused the preponderance of failures.

 

If you look at the splash shield there is a scoop built in to cool the transfer case, which is right at the bottom of the car. Apparently the issue is that water goes through the scoop and hits the driveshaft. The driveshaft then which is spinning flings the water everywhere. If the transfer case is venting at that time with the stock vent the water will go in.

 

Underbody car wash/spray maybe ??? The body tray has a big Vent slot right before the TC.....a big one.

 

Living in an area with high humidity could be it...living in an area with a lot of rain too.

It could be that the stock vent is just trash lol. Who knows. All i know is that people have had good results changing the oil after experiencing problems. Hence, why i bought all the supplies and will be tackling that this weekend.

 

He did that already.....documented.


2016 Macan T

 

So, it didn't work? Thus the quest continues for a DIY answer to the Porsche design failure?

 

It’s working great for me. I know others who have pm me and done it as well. Not sure why the quest continues.

 

I don t believe it s the vent and water causing this. Don t you think Porsche would just replace vent instead of having to replace cases down the road?? I have the newer case I believe and will have to see if the vent is indeed any different.