Probably not a good idea to take the car to the dealer if you only get grinding and thumping on reverse. There’s a TSB by Porsche that this is normal expected behavior as I found out $300 later for the diagnosis fee.

 

Has the weather turned colder are you are still using summer tires? If so, what you are feeling could be due to the temperature. Summer tires don’t like cold weather and do funny things when cold.

 

Question:
Why use the fill hole at all for fluid transfer if we need to do final fill through the breather?

 

I apologize if this has been answered, but has anyone had issues with their transfer case AFTER getting the revised 95b-341-010-ax unit? I got this transfer case installed under warranty a few years ago and haven’t had any issues, but am curious if other have or if this was an actual solution from Porsche.

 

I apologize if this has been answered, but has anyone had issues with their transfer case AFTER getting the revised 95b-341-010-ax unit? I got this transfer case installed under warranty a few years ago and haven’t had any issues, but am curious if other have or if this was an actual solution from Porsche.

I dont understand your question? If it sits in a Porsche, it is a Porsche solution…

 

OP is asking if Porsche released any details on the TC revision numbers that lead us to believe they have corrected (and found) root cause of TC service life issues.

 

The current part number being offered on several Porsche parts sites is 95B-341-010-PX, and replaces the following:

95B-341-010-AX
95B-341-010-LX
95B-341-010-X

So, it appears subsequent revisions continue to be produced.

 

Interesting. Have there been any reported failures with the AX or now PX revised part?

also @Smike that is correct, sorry if my initial wording wasn’t clear with the word solution.

 

2015 Macan Turbo, 75k miles. I purchased it at 70k in Spring 2023, fully aware of potential TC issues and that I am beyond the warranty extension.

About 2k miles ago I started to notice judder at low speeds ~10mph and low speed full clock turns. Was quite sure it was the TC. My local indie shop ran through the steps in TSB 132/17 and confirmed.

The sourced part to be used for replacement is 95B-341-010-PX. I asked them to check the number on the existing transfer case which I assume has never been replaced as I have all service records going back to 2017. If it turns out to be one of the replacement part numbers I will report back but I doubt it will be.

I purchased a warranty from Freedom through the rennlist forum sponsor Hi Line Autos. Will submitting a claim for the TC parts and labor to them. Will also report back if I run into any trouble there.

 

2015 Macan Turbo, 75k miles. I purchased it at 70k in Spring 2023, fully aware of potential TC issues and that I am beyond the warranty extension.

About 2k miles ago I started to notice judder at low speeds ~10mph and low speed full clock turns. Was quite sure it was the TC. My local indie shop ran through the steps in TSB 132/17 and confirmed.

The sourced part to be used for replacement is 95B-341-010-PX. I asked them to check the number on the existing transfer case which I assume has never been replaced as I have all service records going back to 2017. If it turns out to be one of the replacement part numbers I will report back but I doubt it will be.

I purchased a warranty from Freedom through the rennlist forum sponsor Hi Line Autos. Will submitting a claim for the TC parts and labor to them. Will also report back if I run into any trouble there.

Thanks, I appreciate it! Really curious to see if anyone has the AX part replacement and has run into issues with it down the road. I checked back in my records and I got that part in April of 2020. Knock on wood haven’t had any issues, but I feel like if Porsche came out with this PX revised part that they must have determined the AX didn’t fix the issue.
Good luck with the claim, hope it goes smoothly (pun intended).

 

Good observations!

I concur - I cannot recall but that single instance noted above where an AX unit failed. Considering all of the many, many
thousands of Macans on the road and the relatively, still rare, occurrence of transfer case failures in the 95B.1 models (despite
how it may appear in an enthusiast forum!), the AX replacement units, so far, appear fo be "bulletproof".


Would it be correct to interpret the failure in the 95B.1 range to have been caused primarily by the vent tube design, resulting in
water, etc. (dirt? particulate?) contamination and degradation of the lubricant in the case?

Thx!

 

Good observations!

I concur - I cannot recall but that single instance noted above where an AX unit failed. Considering all of the many, many
thousands of Macans on the road and the relatively, still rare, occurrence of transfer case failures in the 95B.1 models (despite
how it may appear in an enthusiast forum!), the AX replacement units, so far, appear fo be "bulletproof".


Would it be correct to interpret the failure in the 95B.1 range to have been caused primarily by the vent tube design, resulting in
water, etc. (dirt? particulate?) contamination and degradation of the lubricant in the case?

Thx!

I gleaned two problem areas from this thread that I saved to my notes.

The fundamental problem is the viscosity of the oil in the transfer case that made the clutch plates grabby. It was being highly affected by moisture from a poorly designed vent tube.

Apparently, "Gas nitrocarburizing (GNC)" is now used to coat the clutch plates on the new transfer case. The new transfer case requires that new software be installed in the transfer case control module specifically for the new model. The "Gas nitrocarburizing (GNC)" supposedly strengthens or reinforces the clutch plates.

The TSB for this was released in April of 2018. New Macans started shipping with the updated TC in March of 2018. The A part number was discontinued in 2022. The L part number seems to have transitioned to the P part number sometime last year. I found no information as to the reasoning for the recent part number changes.

 

Great info, thank you all! Am curious why Porsche made another revised part in the PX unit if the AX TC functioned properly.

 

This would be good to know. I have an AX case , replacement .

 

So how important is it really to reset the wear indicator if you do the TC fluid change?

 

I don't think the vent tube design (letting moisture in) is the issue of the Macan Transfer case. This was just 'cross-talk" from the discussions of the Cayenne Transfer Case failures, where the vent tube was changed by Porsche to eliminate water entry. The Macan Transfer Case is a completely different design that what the Cayenne has.

The Macan Transfer Case issues are just that the original design clutch plates are not durable enough, so they added the GNC surface treatment in the March 2018 update.

Concerning the reset of the wear integrator parameter when the fluid is changed, I don't think that really does anything, except keep approximate track of the fluid degradation, as Porsche uses that statistic to determine when the fluid should be changed. I don't think that the value of the wear integrator has anything to do with how the Transfer Case Control/actuator module "behaves".

 

@VAGfan , There is an "Angle Learn" procedure after fluid change in the Trans Box . what exactly does this do ??

 

I would guess that it learns the initial clutch engagement "kiss" point, which is the angular position of the actuator motor shaft. I don't know how important this is, after a fluid change. Probably more important after the Transfer Case clutches have significant wear, so that the control module can learn the new kiss point. I suspect if you change the fluid often, the wear will be minimal, reducing the need to do the Angle Learn.

 

I might be imagining it, but starting off from a stop at a red light seems a little bit rougher after my fluid change. Although the fluid change fixed my “off road mode reverse sharp steering angle slow grinding noise”.

 

Hey Everyone - been following this thread for a while and finally it was my turn this week for the replacement.

My invoice shows 95B-341-010-PX on the paper work. However today when I got under the car to do some work, I noticed the part sticker had no "X". The sticker showed: 95B-341-010-P.

I am thinking maybe they put a brand new one in actually but wanted to see if any members who have a "X" part have a picture of their part sticker or know if their part sticker has the "X" to match the invoice.

My thought is maybe the part stickers between new and remanufactured are the same.

 

My transfer case replacement is complete. Car drives smooth as silk now. My transfer case was indeed the original, dated November 2014. It took them a while because they sent out an inspector to validate before paying out but Freedom did indeed pick up the tab, covering everything but the sales tax. I am now in the black on that warranty purchase in less than a year of ownership.

 

I had purchased a couple bottles of TC fluid and new plugs a month ago since the wife’s Macan has 54K miles on it. Just got around to changing it today. Got a lot of great ideas from several of you here on the forum. I used the 500ml syringe and 90* plastic elbows @Santirx recommended, thanks.

The first thing I did was get an empty 2 liter bottle and filled it with 500ml of water. I marked the level with a Sharpie so I’d know how much fluid came out. I made sure I could get the top plug loose first, loosened the drain plug and emptied the TC. Put the hose in the top hole and sucked out the rest of the fluid. Pushed the hose in a little further and got more out. Had a little scare when I couldn’t pull the hose all the way out. I could push it in further but it wouldn’t come out. Finally it did, not sure what it got hung up on. I didn't get 500ml out of the TC and there are no leaks anywhere. Not sure why there wasn't 500ml in it. Torqued the new plugs in place, removed the rubber plug/cap from the top of the TC and filled the syringe. I put all 500ml through the top port. I found it was easy to do after I stuffed a rag above the hose to keep it in the port. That way I could use two hands to work the syringe.

Old fluid is really dark. Hard to believe Porsche only recommends changing it at 140K miles. (IIRC) The new fluid is clear/golden in color and in comparison the old stuff was as black as the night. As easy as this was I’ll be doing this at every oil change.

 

I had purchased a couple bottles of TC fluid and new plugs a month ago since the wife’s Macan has 54K miles on it. Just got around to changing it today. Got a lot of great ideas from several of you here on the forum. I used the 500ml syringe and 90* plastic elbows @Santirx recommended, thanks.

The first thing I did was get an empty 2 liter bottle and filled it with 500ml of water. I marked the level with a Sharpie so I’d know how much fluid came out. I made sure I could get the top plug loose first, loosened the drain plug and emptied the TC. Put the hose in the top hole and sucked out the rest of the fluid. Pushed the hose in a little further and got more out. Had a little scare when I couldn’t pull the hose all the way out. I could push it in further but it wouldn’t come out. Finally it did, not sure what it got hung up on. I didn't get 500ml out of the TC and there are no leaks anywhere. Not sure why there wasn't 500ml in it. Torqued the new plugs in place, removed the rubber plug/cap from the top of the TC and filled the syringe. I put all 500ml through the top port. I found it was easy to do after I stuffed a rag above the hose to keep it in the port. That way I could use two hands to work the syringe.

Old fluid is really dark. Hard to believe Porsche only recommends changing it at 140K miles. (IIRC) The new fluid is clear/golden in color and in comparison the old stuff was as black as the night. As easy as this was I’ll be doing this at every oil change.

View attachment 280478

That 500ml syringe is a pain. I since change it to a different type of syringe that accommodate the full 500ml and is very easy to plunge. The tubing actually fits through the vent leaving space for venting. I can fill the transfer case in less than 1 minute now….

https://a.co/d/bhL8WXo

I feature this syringe in my “cracked transfer case video”.

I use a similar but smaller 200ml syringe to extract the oil from the area of the filling plug.

 

Thanks for sharing your experience. Did you notice any difference in the driveline post fluid exchange?

 

Not yet. I have had an occasional "clunk" when backing up but it's been so intermittent I'm not certain it was related to the TC. But after reading some people's experiences that "clunk" is quite likely to be related to the TC. If I don't hear it again then I'll know it was from the TC. I'll post again once I have an opinion about it.

 

I LOVE my 2016 Turbo, I mean is it really so wrong to love a car?
Recently noticed the shudder on acceleration, happens once warmed up. I was due for a big maintenance, and had not been driving it since I noticed the shuddee so told the dealer about it. It’s 2024, they immediately told me about the transfer case, but the extended warranty placed on this exact part for being faulty expired in 2022. I’m now faced with a $4,000 fix on top of the $3,100 routine maintenance. My question is whether I should contact Porsche and request $$ relief since I’m feeling like this should have been a recalled item instead of a quiet, unannounced and now expired extended warranty. The dealership (that does a nice job) doe$ not mind at all that I have to pay this now to drive it. Any help appreciated.

 

I LOVE my 2016 Turbo, I mean is it really so wrong to love a car?
Recently noticed the shudder on acceleration, happens once warmed up. I was due for a big maintenance, and had not been driving it since I noticed the shuddee so told the dealer about it. It’s 2024, they immediately told me about the transfer case, but the extended warranty placed on this exact part for being faulty expired in 2022. I’m now faced with a $4,000 fix on top of the $3,100 routine maintenance. My question is whether I should contact Porsche and request $$ relief since I’m feeling like this should have been a recalled item instead of a quiet, unannounced and now expired extended warranty. The dealership (that does a nice job) doe$ not mind at all that I have to pay this now to drive it. Any help appreciated.

You are 4 years out of warranty . Your service advisor would advise if he could open a "goodwill " ticket but I doubt it . Even if you had Geico MBI you are beyond the 7 year mark . In my opinion 7K on a car thats worth 30K is a tough pill to swallow . I have an old Porsche which is a money pit and I keep going with it so I do understand the "love" . Can you just do the repair ., skip the 3K service and trade it in ? Its a way to hedge the expense and stop the bleeding with repairs .

 

I thought the TC warranty was extended to 7 years? Not that he wouldn't still be out of warranty but Porsche might be more amenable since it is so close.

 

They suggested that with the fix and then maintenance I would easily drive it to 120,000 miles. (I’m at 80,000 now) I completely agree that 7k is a huge pill to swallow for the value of the car…but it’s a really sweet Turbo that is amazing to drive. I’m sick. It’s either time to end the love affair or throw caution to the wind. Dang, the drive is pure joy.

 

What sort of regular maintenance is costing you 3+K on a 7 year old car may I ask? "The dealership (that does a nice job)" They better, looks like they are charging you 5x for basically replacing air filters (12 minute procedure for anyone that can hold a screwdriver), Spark plugs (1 hours procedure, probably should be done by someone who is somewhat mechanically inclined) and PDK fluid (about a $600 at a reputable independent mechanic).

As for the transfer case, find a good place that would allow you to bring your fluids, then get Redline MT-LV, flush (no more than .850 ml of fluid). It is at least worth a try to see if you can get those clutches in the TC slippery enough to not shudder.

Your car is at the age where you need to service it at a place less hung up on taking your money to maintain their italian marble showroom floors.

 

It included replacing the drive belt, spark plugs, all fluids…I agree with you though-surely there is another place that can maintain this machine!

 

It looks like you get all your service done at the dealer. If so I would talk to the service manger and ask if he can do some goodwill to cover the repair. it can not hurt to ask.

I have all my service done at the dealer and with that I had the timing cover leak and at that time it was a engine out repair ($9,000) and I was almost out or warranty for about 10 months.
So I talked to the service manage and they got some goodwill from Porsche and the dealer kicked in what Porsche did not to cover for the repair it cost me zero. Dealers have extra money from Porsche to help in some cases.

 

Thank you-this helpful!

 

Hope for the best, be prepared for the worst. The car is long out of both car and xfer case warranty. Your feelings mean nothing. Its not a safety issue, the NHTSA never issued a recall. The car is two facelifts behind and now a generation behind. Porsche has moved on.

OTOH, if you bought the car new at the dealer, faithfully serviced it there, and have bought other cars from them, then they know exactly what you are worth to them and maybe will try to help. Good relationships matter. Best of luck to you.