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Gearbox and front diff Carrera 4

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thirteeneast
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2019/04/24 08:16:05 (permalink)

Gearbox and front diff Carrera 4

Hello,
 
   I need to change my Tip transmission fluid on my mk1  2001 Carrera 4 (LT 71141 oil)
About 6.6 liters if I'm not mistaken?
However at the same time id like to get the front diff done too is this the same oil (LT 71141)
And how much does the front diff hold?
Many thanks
Regards

9 Replies

Richard_Hamilton
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Re: Gearbox and front diff Carrera 4 2019/04/24 09:34:14 (permalink)
The ATF capacity for a A96.00 C4 gearbox is 9 litres, but the change quantity is quoted as 4.0 litres.  It is a job to drain much more than that.
 
The front differential uses 75W-90 gear oil, not ATF.  Mobilube PTX or Shell Transaxle.  1.5 litres.

Richard
2017 Cayman S & Audi RSQ3
Previous:
1989 3.2 Carrera Sport, 2012 Cayman 2.9 PDK, 2006 Cayman S, 2000 996 Turbo, 1998 996 C2, 1994 993 C2
thirteeneast
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Re: Gearbox and front diff Carrera 4 2019/04/25 06:49:30 (permalink)
Thanks Richard, quick reply as always.
 
So five liters for the gearbox should do including the filter.
Do you know whether it's recommended to change the pan bolts?
 
Regards
 
Richard.
post edited by thirteeneast - 2019/04/25 10:27:48
Richard_Hamilton
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Re: Gearbox and front diff Carrera 4 2019/04/25 13:54:38 (permalink)
That should be plenty for an ATF change.  No need for new bolts, but here are the instructions for changing the filter:

Richard
2017 Cayman S & Audi RSQ3
Previous:
1989 3.2 Carrera Sport, 2012 Cayman 2.9 PDK, 2006 Cayman S, 2000 996 Turbo, 1998 996 C2, 1994 993 C2
thirteeneast
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Re: Gearbox and front diff Carrera 4 2019/04/25 14:13:00 (permalink)
Thank you
thirteeneast
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Re: Gearbox and front diff Carrera 4 2019/04/26 09:06:16 (permalink)
Sorry Richard another question if I may,
As I won't get all the fluid out is it ok to use Mobil ATF LT 71141 thus mixing
 
Or should I really use OEM oil as I think it's original?
 
Regards
 
Richard.
post edited by thirteeneast - 2019/04/26 09:12:00
Richard_Hamilton
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Re: Gearbox and front diff Carrera 4 2019/04/27 09:57:15 (permalink)
The original fill will have been Mobil ATF LT 71141 or Pentosin ATF-1, which are miscible.  Here is a page from my book which shows the spec and capacities for all models.

Richard
2017 Cayman S & Audi RSQ3
Previous:
1989 3.2 Carrera Sport, 2012 Cayman 2.9 PDK, 2006 Cayman S, 2000 996 Turbo, 1998 996 C2, 1994 993 C2
thirteeneast
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Re: Gearbox and front diff Carrera 4 2019/04/27 10:26:58 (permalink)
Shame on me, I normally go to your book as my first port of call I always recommend it to anyone I know with a 996.
Totally slipped my mind to look.
Thanks Richard.
Have a good weekend.
Motorhead
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Re: Gearbox and front diff Carrera 4 2019/04/27 10:43:48 (permalink)
Changing the Tiptronic fluid is no simple task Richard, requiring running the car on a lift or on stands and measuring the oil/sump temperature too:
 
https://www.pelicanparts.com/techarticles/Porsche-996-997-Carrera/35-TRANS-Replacing_Your_Automatic_Transmission_Fluid/35-TRANS-Replacing_Your_Automatic_Transmission_Fluid.htm
 
I hope you're well prepared and good luck!
 
Jeff

987.2 Cayman S
North Beds (R10 & R24)
thirteeneast
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Re: Gearbox and front diff Carrera 4 2019/04/27 16:53:59 (permalink)
Motorhead
Changing the Tiptronic fluid is no simple task Richard, requiring running the car on a lift or on stands and measuring the oil/sump temperature too:
 
https://www.pelicanparts.com/techarticles/Porsche-996-997-Carrera/35-TRANS-Replacing_Your_Automatic_Transmission_Fluid/35-TRANS-Replacing_Your_Automatic_Transmission_Fluid.htm
 
I hope you're well prepared and good luck!
 
Jeff


Lol, is anything ever easy on a Porsche.
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