Transfer box - Survey of members

Technical Forum for the Porsche Macan
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Tom 2000
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Joined: Sat Aug 19, 2017 7:23 am
Location: Norn Iron

Post by Tom 2000 »

TonyZed wrote: Thu Feb 28, 2019 7:56 pm
Tom 2000 wrote: Wed Feb 27, 2019 11:06 pm
TonyZed wrote: Wed Feb 27, 2019 7:40 pm As promised, here is my update.
The car went in to Portsmouth Porsche to have a new key programmed in (my wife lost hers :evil: )
It was also booked in to have the transfer box checked. They assure me it is Ackerman effect and that there is no fault. I do believe them as it would be a nice little earner if it needed a new box.
Whilst there they did a software update which took about an hour.

TonyZ
Good news then. Did they ask your permission to update software?
Hi Tom, yes they did. I had an extra hour to kill so they gave me a lift to Port Solent where I had some lunch and then walked back.
I haven't noticed any difference.

TonyZ
Thats good. Apparently its to overcome Cheat Software although some say its to replace a previous removal of cheat software. I don't believe it myself. Whats the point in removing Cheat Software that will never kick in now the car is in private hands and will not be tested? Whats the point in removing any software that lowers emissions in whatever circumstances? None whatsoever.
Is it to make it comply with previously reported standards? Perhaps. If so how? A barely noticeable drop in power that the driver might overcome by pushing the pedal harder? Perhaps.
Macan SD Vocano Grey. LEDs, Pano Roof, PSE, Sports Chrono, PASM, Sports Design Mirrors, 21" Sports Classics in Black, lots of other extras.
http://www.porsche-code.com/PJ2XHAR5 for the day that this works again.

987 Boxster 2.7 (2006)

SP6IGHT
Posts: 121
Joined: Sun Feb 05, 2017 10:16 pm

Post by SP6IGHT »

SP6IGHT wrote: Wed Dec 26, 2018 2:55 pm Purchased
May 17 - 19000 miles no issues as yet.
Update Car has just clocked 20000 miles serviced 3 weeks ago.

I have just started to notice a slight hesitation when setting off. it feels like the engine revs slightly. As if it's not in gear. and then it sets off. No clunking. I've only noticed it when the car is cold.
I have always had the inside rear wheel scrub when turning sharply from new. Thats just the fat tyres.

I haven't reported it yet as it is intermittent.

Can somebody tell me the classic symptoms of impending failure.

Thanks
DaveMacan
Posts: 58
Joined: Fri Oct 02, 2015 10:41 pm

Post by DaveMacan »

Well today my ‘lightly’ used Oct 15 SD with 4.5k miles was diagnosed with transfer box failure.😕

The first thing I noticed was a delay in 1st and reverse gears engaging. Then on a couple of occasions the revs momentarily increased between a 1st to 2nd gear change mainly whilst moving in slow traffic. Quick acceleration from standstill sometimes caused what felt like one of the rear wheels ‘had jumped’. For me however the best test was highlighted in this thread, put the car in off road mode and reverse on full lock.......at that point it felt like the drivetrain was about to depart the car! Reverse or forward was the same.

I’m just glad I extended the warranty!

Dave
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goron59
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Joined: Sun Aug 09, 2015 10:15 am

Post by goron59 »

Did this survey ever produce any collated results in tabular form, or maybe even a chart?
Used to have 2016 Macan Turbo PHCKCL70
Previously a 2014 Macan Turbo.
Now a 2021 Tesla Model 3 LR
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Guy
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Joined: Tue Nov 04, 2014 11:06 am
Location: Warwickshire

Post by Guy »

goron59 wrote: Fri Mar 01, 2019 7:53 am Did this survey ever produce any collated results in tabular form, or maybe even a chart?


I did a scatterplot. Here it is again:

0E504D6A-E74D-491B-9901-2ACAD4F44314.jpeg

DaveMacan
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Joined: Fri Oct 02, 2015 10:41 pm

Post by DaveMacan »

I wonder how well these percentages match Porsche data on failures, not that we will ever find out!

I find it worrying that so many units are failing and can’t understand why a TB needs a breather pipe in the first place if that is indeed the cause.
Spicky
Posts: 207
Joined: Tue Feb 24, 2015 7:15 pm

Post by Spicky »

Hi,

I have September 2015 SD and the box failed around 20K [replaced under 2 year warranty] Nottingham OPC assured me there have not been any "second" failures but if you read the forum another one in Nottingham has had a second box fitted!!

Did the survey letter get sent to Reading?
http://www.porsche-code.com/PGEN3JG2
SP6IGHT
Posts: 121
Joined: Sun Feb 05, 2017 10:16 pm

Post by SP6IGHT »

Cheers Dave, I will go try the off road and full lock test. and let you know the result.
SP6IGHT
Posts: 121
Joined: Sun Feb 05, 2017 10:16 pm

Post by SP6IGHT »

I've tired full lock forward and reverse with the off road selected and it was fine. I think I will just let it develop.
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goron59
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Post by goron59 »

Guy wrote: Fri Mar 01, 2019 8:28 am
goron59 wrote: Fri Mar 01, 2019 7:53 am Did this survey ever produce any collated results in tabular form, or maybe even a chart?


I did a scatterplot. Here it is again:

0E504D6A-E74D-491B-9901-2ACAD4F44314.jpeg
OK, cool, though I it doesn't cover people who didn't have a problem, doesn't show MY of car. Still good though - thanks.
Used to have 2016 Macan Turbo PHCKCL70
Previously a 2014 Macan Turbo.
Now a 2021 Tesla Model 3 LR
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