Macan Transfer box failure

Macan Transfer box failure

Author
Discussion

EGTE

996 posts

182 months

Sunday 3rd November 2019
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Might be an idea for guys with Cayennes and Macans to change the transfer box oil every 20K from now on.

shopper150

1,576 posts

194 months

Sunday 3rd November 2019
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Are there any ‘symptoms’ one should watch out for before this occurs?
When I purchased our used Macan from an OPC, I asked for the history and they mentioned the transfer box had been replaced. We purchased at 28k miles so I am worried about this happening again now.

EGTE

996 posts

182 months

GavinRTait

Original Poster:

21 posts

54 months

Monday 4th November 2019
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In 1st and 2nd pulling away, especially up an incline you will feel jerking through the transmission, as if running over bumps in the road. Above 3rd you will feel nil.

Manwhoneverwas

598 posts

131 months

Saturday 16th November 2019
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My Macan S is now booked into Porsche Glasgow for investigation of the transfer box judder.
It seems its just a case of going through this process and they will approach Porsche GB for a "Goodwill" contribution.
To be honest it has taken the shine right off a good car, it is very tedious driving a car that judders like this and I personally think the fuel economy and performance has been blunted since the car had a Major service 8 weeks ago when the software was also updated.
Hopefully it will get a new transfer box and I shall see how the car drives then.

Darranu

338 posts

220 months

Saturday 16th November 2019
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We had the same issue starting to manifest with our 14 Cayenne.

There's a lot of information on the net regarding this failure mode.

Before I spoke to a dealer I decided to change the transfer fluid as its not on the service schedule. £27 later and the symptoms have gone and the cars silky smooth again. This was 6 months ago.

I'm not saying it's "the" fix, just that its worth doing before you put you hand in you pocket for any out of warranty repairs.
It takes roughly 10 minutes, especially if you have air suspension as you just lift the car and slide under. One thing to note, slacken the fill plug first just to ensure its not seized and you can actually re-fill once drained.

Oil below, copied straight from the ebay ad.

RAVENOL TRANSFER BOX FLUID IYK500010 ACTIVE TRANSFER CASE TF-0870 GEAR BOX OIL

Manwhoneverwas

598 posts

131 months

Tuesday 26th November 2019
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Porsche Glasgow have now investigated and confirmed the transfer box on my Macan S needs replaced at 17.5K miles.
They will speak to Porsche GB and revert back to myself.

Manwhoneverwas

598 posts

131 months

Saturday 30th November 2019
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Porsche GB have made a "goodwill" offer to replace the transfer box, with a contribution from myself of £536 (inc VAT).
Car is booked in to Porsche Glasgow this Friday for the work.

Following that I shall see how the car drives, at the moment it is not the same car I bought 12 months ago (neither in performance or economy)
In an ideal world I would get rid of it.

Many thanks to GRT for your help in this matter

Porsche guy

3,465 posts

227 months

Saturday 30th November 2019
quotequote all
Manwhoneverwas said:
Porsche GB have made a "goodwill" offer to replace the transfer box, with a contribution from myself of £536 (inc VAT).
Car is booked in to Porsche Glasgow this Friday for the work.

Following that I shall see how the car drives, at the moment it is not the same car I bought 12 months ago (neither in performance or economy)
In an ideal world I would get rid of it.

Many thanks to GRT for your help in this matter
Not sure I'd have accepted that, Porsche clearly have a built-in problem with the Macan transfer box, and they've got off lightly IMV.



churchie2856

448 posts

190 months

Saturday 30th November 2019
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Do the 2.0 Macans suffer from this too, or is it generally confined to the higher torque models?

GavinRTait

Original Poster:

21 posts

54 months

Saturday 30th November 2019
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Manwnw
Challenge that fee. I did and final offer became £400 incl vat for labour
Good luck
GRT

Manwhoneverwas

598 posts

131 months

Saturday 14th December 2019
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The new transfer box has now been fitted by Porsche Glasgow with a contribution from myself of £464 (inc VAT).
Totally changed the car back to the car I bought over a year ago and thoughts of getting rid of it have diminished.

It is just a pity that there was a bit of "cloak and dagger" from them regarding this issue.

EGTE

996 posts

182 months

Saturday 14th December 2019
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Let's see how long the new one lasts!

David W.

1,908 posts

209 months

Saturday 14th December 2019
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EGTE said:
Let's see how long the new one lasts!
If I didn’t have warrantee I’d be having an annual oil change in mine.

Megaflow

9,405 posts

225 months

Saturday 14th December 2019
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EGTE said:
Might be an idea for guys with Cayennes and Macans to change the transfer box oil every 20K from now on.
Out of idle curiosity, being an engineer, I did some quick reading into this. There seems to be two types of failures, the early life failure in this thread, which changing the fluid is not going to help with, because the clutch pack is defective.

But, there is also later life failures that changing the fluid helps with. I haven't seen what the service life on the fluid is, I suspect like most gearbox oils it is fit for life, it would appear that is not a great idea and changing the fluid regularly would be a good idea.

David W.

1,908 posts

209 months

Saturday 14th December 2019
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Megaflow said:
Out of idle curiosity, being an engineer, I did some quick reading into this. There seems to be two types of failures, the early life failure in this thread, which changing the fluid is not going to help with, because the clutch pack is defective.

But, there is also later life failures that changing the fluid helps with. I haven't seen what the service life on the fluid is, I suspect like most gearbox oils it is fit for life, it would appear that is not a great idea and changing the fluid regularly would be a good idea.
Thought I read somewhere there was an issue with breather pipe routing and moisture ingress?
Hopefully pipe routing issues will have been resolved but regular oil changes should help if there are any moisture issues.

Megaflow

9,405 posts

225 months

Saturday 14th December 2019
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Oh, maybe there is more than one failure then. I just found clutch packs.

Als911

331 posts

198 months

Saturday 14th December 2019
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not had an issue with the transfer box, that I know off. but will be checking it tonight when I go out.

agreed regards service and ecu reprogram. Wish id never allowed them to do it, car has came back gutless
after its reprogram.

D.R.S

4 posts

52 months

Wednesday 18th December 2019
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I have a 2016 Macan with 40,000 miles on it and reading this and other forums think my transfer box is shot and it seems to be getting worse. Pretty much no problem when cold but as soon as it warms up the juddering starts and gets worse the longer the journey is. I have spoken to the OPC and it is booked in for the end of Jan for assessment. I have explained that I believe this is a design and common fault and would expect Porsche to cover the cost even though it is now out of warranty. They have said that based on their previous experience they would expect Porsche to contribute to this if it is indeed the transfer box.

Has anyone any idea what 'contribute' is likely to mean? Are they likely to make a nominal contribution and expect me to pay the bulk or is it likely to be the other way around.

Lonely

1,099 posts

168 months

Wednesday 18th December 2019
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D.R.S said:
I have a 2016 Macan with 40,000 miles on it and reading this and other forums think my transfer box is shot and it seems to be getting worse. Pretty much no problem when cold but as soon as it warms up the juddering starts and gets worse the longer the journey is. I have spoken to the OPC and it is booked in for the end of Jan for assessment. I have explained that I believe this is a design and common fault and would expect Porsche to cover the cost even though it is now out of warranty. They have said that based on their previous experience they would expect Porsche to contribute to this if it is indeed the transfer box.

Has anyone any idea what 'contribute' is likely to mean? Are they likely to make a nominal contribution and expect me to pay the bulk or is it likely to be the other way around.
As you will have read throughout this thread there are differing 'contributions' offered and accepted. It will no doubt depend on numerous factors e.g. where did you buy; where is it serviced etc. Not guaranteed but they are more likely to 'assist' a valued customer than someone who bought and gets serviced elsewhere.

Having said that and after reading this thread it would appear to be a confirmed design fault which should be addressed under consumer laws imho.