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Transfer Case Oil Change
 
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Pelican Technical Article:

Transfer Case Oil Change

Jared Fenton

Time:

1 hour1 hr

Tab:

$30

Talent:

***

Tools:

8mm hex driver, drain pan, gloves, hand pump

Applicable Models:

Porsche 955 Cayenne (2004-08)
Porsche 955 Cayenne GTS (2008)
Porsche 955 Cayenne S (2003-08)
Porsche 955 Cayenne Turbo (2003-08)
Porsche 955 Cayenne Turbo S (2006)

Parts Required:

ATF, New drain plugs.

Hot Tip:

Make sure you have a drain pan with capacity

Performance Gain:

Extend the lifetime of transfer case

Complementary Modification:

Replace front and rear differential oil

In this article, I will go over the steps involved with changing the transfer case oil on your Porsche Cayenne. Changing the oil is not a difficult job, but can be a bit messy. Its advisable to lay down a plastic tarp or sheeting underneath the car to catch any possible spills. You'll also want to have a drain pan with a capacity of at least five liters to be on the safe side. When filling the transfer case, you'll need roughly one liter of Porsche approved Automatic Transmission Fluid (ATF). The factory part number for one liter of fluid is 000-043-205-28.

Note that Porsche recommends replacing the drain plug seals each time you remove the plugs. At this time it appears that Porsche is only selling the seals with new drain plugs. (part number 955-332-057-00). I would visually inspect each seal first for damage or wear before automatically replacing it.

Begin by jacking up the Cayenne and securing it on four jackstands (See our article on Jacking Up Your Cayenne for more information. This is both to gain clearance to the transfer case and also to keep the Cayenne level. This is important. If you do not have the car level, it will affect the measurement for filling the case back up. Note, if you have air suspension on your Cayenne, it is possible to gain enough clearance to access the transfer case by putting the suspension to its highest setting.

Shown here is the transfer case on the Porsche Cayenne.
Figure 1

Shown here is the transfer case on the Porsche Cayenne. In this article, I'll go over the steps involved with changing the transfer case oil.

Shown here are the drain (yellow arrow) and fill (green arrow) plugs on the transfer case.
Figure 2

Shown here are the drain (yellow arrow) and fill (green arrow) plugs on the transfer case.

You'll want to remove the fill plug first to help drain the oil from the transfer case.
Figure 3

You'll want to remove the fill plug first to help drain the oil from the transfer case. Use an 8mm hex bit to loosen and remove the plug. Once the fill plug is removed, remove the drain plug. Make sure you have a drain pan underneath to catch the old fluid. It's also advisable to wear gloves and have plenty of rags nearby to catch any spills. Let the case drain completely. Inspect the sealing ring on the drain plug. Now replace or reinstall the plug and torque it to 20Nm (15 ft/lbs.).

You'll want to use a hand pump to fill the transfer case with ATF until it just starts to pour out the fill plug threads.
Figure 4

You'll want to use a hand pump to fill the transfer case with ATF until it just starts to pour out the fill plug threads. It is important that you have the car level on four jackstands. This will give you a correct level when filling the transfer case. Once filled, inspect the sealing ring on the fill plug. Now either replace or reinstall the plug and torque it to 20Nm (15 ft/lbs.).

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Comments and Suggestions:
Max Comments: Can you confirm the 20Nm 15 ft/lbs for the transfer case bolts as you have 35Nm 26 ft/lbs. for both the front and rear differentials.
August 15, 2016
  Followup from the Pelican Staff:
I don’t have that info.


I would grab a repair manual. It will have the procedure, special tools and torque specs.

Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts
 
Kelvinator Comments: 00004320530 is 75W-90 For differentials and manual transmissions?

It should be 00004330136 Genuine Porsche ATF for transfer cases, bottle should say TF0870?
August 12, 2016
  Followup from the Pelican Staff: Yes. Look for TF0870- Nick at Pelican Parts  
rommel Comments: just wondering how many litters does it take of oil fluid
June 2, 2016
  Followup from the Pelican Staff: What is your vehicle? I can check if I have that info. - Nick at Pelican Parts  

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Page last updated: Wed 12/7/2016 02:34:15 AM