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958 Cayenne DIY: Changing ATF fluid

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Old 04-30-2016, 11:29 PM
  #1  
Nixer
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Default 958 Cayenne DIY: Changing ATF fluid

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Old 05-01-2016, 12:58 AM
  #2  
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From the manual - which is where that picture came from: (My comments in italics)

WM 370235 CHECKING AND TOPPING UP ATF (ALL MODELS) > INFORMATION >
TEST CONDITIONS AFTER OPENING COOLER LINES


ATF cooler lines were opened.

For example: when replacing the transmission, changing ATF, changing ATF lines, replacing ATF cooler, replacing ATF thermostat.

Warm up transmission in lower load range. Switch all transmission ranges several times while
doing so.

Read out the ATF sump temperature using the PIWIS Tester.

The ATF temperature must be 100 ░C (cooling system open).

Let ATF cool down to approx. 35 ░C.

Selector lever is in position P.

Press the brake pedal and shift the gear lever slowly through P-R-N-D three times. Hold the
selector lever in each position for 2 seconds.

Test and filling procedure at idle speed with air conditioning switched off.

Then it follows with:


WM 370235 CHECKING AND TOPPING UP ATF (ALL MODELS) > CHECKING ATF

1. Move selector lever to position P and start the engine.
Place oil collection pan underneath.
WARNING: Hot fluid
1. Danger of scalding
→ Let the fluid cool down.
→ Wear personal protective gear.

Information

For details of the next steps, read the test conditions specified under → INFORMATION -
section on "Information".

1. Information
A certain amount of oil will always be lost after unscrewing the oil inspection plug. The reason for this is that some oil remains on the plug in the lifting tube .

2. Unscrew oil inspection plug -1- .

3. The oil level is correct when ATF is dripping continuously from the lifting tube. If this is not the
case, add more ATF. → TOPPING UP ATF - section on "Topping up"

4. Screw in oil inspection plug -1- with a new seal. → Tightening Torque: 16 Nm (12 ft. lb.) +/-1
Nm (+/- 0.5 ft. lb.)

Fig 2: Identifying ATF Inspection Plug

And the image you have is shown..

And to finalize the confusion:

WM 370235 CHECKING AND TOPPING UP ATF (ALL MODELS) > TOPPING UP ATF

Information

For details of the next steps, read the test conditions specified under → INFORMATION - section
on "Information".

Information
A certain amount of oil will always be lost after unscrewing the oil inspection plug. The reason for
this is that some oil remains on the plug in the lifting tube.

1. Move selector lever to position P and start the engine.

2. Place oil collection pan underneath.

WARNING: Hot fluid

1. Danger of scalding
→ Let the fluid cool down.
→ Wear personal protective gear.

Information
For details of the next steps, read the test conditions specified under → INFORMATION
- section on "Information".

{Ya gotta love information that tells you to read "Information"..}

1. Information
A certain amount of oil will always be lost after unscrewing the oil inspection plug. The
reason for this is that some oil remains on the plug in the lifting tube .

1. Unscrew oil inspection plug -1- .

Fig 1: Identifying ATF Inspection Plug

(once again - the same damn image appears..)

3. Screw adapter for filling oil Adapter For Filling ATF Oil VAS 6262/2 WE 1390 into the ATF
pan hand-tight.

4. Connect adapter for filling oil Adapter For Filling Oil VAS 6262A WE 1389 to the rapid-action
coupling and fill in ATF.

5. Pull off adapter for filling oil Adapter For Filling Oil VAS 6262A WE 1389 at the rapid-action
coupling and check to see if ATF emerges.

6. There was no #6.. go figure..

7. If no ATF emerges, fill in ATF until a constant discharge is visible at the lifting tube -2- .

8. Allow the ATF to drain for as long as required until the ATF is still only dripping continuously.
Screw in oil inspection plug -1- with a new seal. → Tightening Torque: 16 Nm (12 ft. lb.) +/-1
Nm (+/- 0.5 ft. lb.)

Fig 2: Identifying ATF Inspection Plug

And of course the image you already have shown..

My thoughts on the "pipe" assembly. It appears that the inner part of the drain plug - the pipe (Part#2 - the gray part) - can be removed from the plug in order to actually drain the entire transmission. Otherwise it stays in the pan when the plug (yellow part) is removed. The manual somewhere makes mention of removing the filler tube using an allen wrench.

I'll point this thread out to someone who did change his fluid about a week ago and see if he has any comments. Apparently the fill is slightly different if you've disturbed hoses to the cooler.

Might I ask why the cooler was replaced? Just curious..
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Old 05-01-2016, 03:35 AM
  #3  
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Originally Posted by deilenberger
Might I ask why the cooler was replaced? Just curious..
Thank you for taking time to respond and post the workshop manual instructions.

My car was in an accident. The power steering cooler , transmission oil cooler, radiator, radiator fan and condenser were damaged. We replaced all these so I decided to flush the transmission fluid as well.

I was able to drain the fluid by unscrewing the so called inspection fluid. I will try to get the pipe removed using allen wrench tomorrow. However I haven't identified the fill plug. The pan has no fill plug like it used in 955 models. The manual doesn't show how (where) to fill the fluid...

3. Screw adapter for filling oil Adapter For Filling ATF Oil VAS 6262/2 WE 1390 into the ATF pan hand-tight.


I need to know where to hand-tight the adapter...There is only one plug in the pan which is the inspection plug... where is the fill plug!!!!

http://www.renntech.org/forums/topic...e/#entry272616

Last edited by deilenberger; 08-24-2017 at 07:38 PM. Reason: Large quote of above posting not needed
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Old 06-19-2017, 09:38 PM
  #4  
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In preparation for eventually changing my CD's ATF I picked up Mityvac MVA7216 ATF refill kit :

http://www.tooltopia.com/mityvac-mva...lQchoCJDPw_wcB.

It has the numerous fill adapters.




Mity VAC ATF Refill Kit



Adapters. Cayenne uses MVA585 M10 X 1.0



The Cayenne MV585 adapter is the upper adapter
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Old 07-07-2017, 07:28 PM
  #5  
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I'm assembling my list of things to buy, and I'm leaning towards the VW G055540A2 fluid but haven't decided completely yet.
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Old 07-07-2017, 09:53 PM
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When I change my ATF I'm most likely going with Ravenol J1D2122 or the Febi 29934. The Febi bottle shows Porsche P/N 958 300 540 00 apparently. Blau sells a kit F2A1044-C with 9 qts of Ravenol, filter, pan gaskets and seals, $320 from Amazon. The filter is by Meyle- WulfGaertner AutoParts AG. I'm going to buy the Porsche filter and gaskets from Sonnen and the Ravenol from Amazon ($164 delivered).
My local dealer confirmed the Porsche ATF comes in a bottle labeled G055 540 A2.
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Old 07-24-2017, 10:51 AM
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I questioned my local dealer about use of plug #19 to fill the transmission. They came back with essentially the same procedure posted above which says to fill through the drain plug in the oil pan. The drain plug is M10 X 1 X 9. In the Mity Vac refill kit the M10 X 1 is adapter MVA585 which they call a VW ATF refill adapter. My dealer further confirmed #19 is inaccessible when the transfer case is installed!! doh.


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Old 07-31-2017, 12:20 AM
  #8  
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Here is the fluid I plan to use: RAVENOL T-WS Lifetime Fluid

http://www.ravenolamerica.com/transm...ifetime-fluid/
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Old 07-31-2017, 08:42 AM
  #9  
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The Ravenol J1D2122 fluid crosses over to the VW fluid G 055 540 A2 which crosses over to the Porsche fluid 958 300 540 00. Whew.

My dealer has the Porsche fluid for $82 a bottle and can get the VW fluid for $25 a bottle. A Ravenol case of 12 works out to less than $14 a bottle.
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Old 08-19-2017, 02:03 AM
  #10  
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Some helpful notes for those trying this:

Removing the drain plug and the plastic riser will drain about 4 liters. About 2 more liters drain when removing the pan, making it 6 liters total that can be removed without opening the cooler lines. That's a little less than half the capacity. To deal with this I drained 6 liters, refilled with 6 liters of fresh fluid, then ran the trans for a while, then re-drained and re-filled again with 6 liters. I wonder how much more can be drained from opening the cooler lines... they were just too difficult to reach to make it worth the effort as the forward driveshaft from the transfer case is in the way.

The ECS Tuning 3 liter Filler System makes the job a lot easier, as it includes a quick-disconnect fitting that threads right into the pan (their version of a VAS 6262/2). It's so easy to drain and refill with this tool that I'll likely do another 6 liter swap in 5,000 miles to get more fresh fluid in there.

An infrared meter is not accurate especially if you measure the low point of the oil pan - it's about 6 degrees C off from what the PIWIS2 computer system reports which means if you wait for 40 on the infrared meter at the bottom of the pan, it's really around 46-48 degrees C in the trans.

Is the original Porsche trans fluid red to start with? If so, at 96K miles, mine was brown and opaque and the magnets were full of tiny shavings that looked like clay.
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Old 08-24-2017, 07:32 PM
  #11  
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Default 958 Cayenne DIY: Changing ATF fluid (development thread)

This is a thread created from various postings in the Cayenne 958 forum - in thread: https://rennlist.com/forums/cayenne-...id-change.html

This thread will reside in the general Cayenne DIY forum, and will be closed. I'll monitor the other thread (which remains open) so if anything significant is added to it - I will add it here.

Any comments/corrections to this thread - please send me a PM..
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Old 08-28-2017, 08:33 PM
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Thanks to the coaxing of one of our members (R553) - who gathered most of the info - we now have a table of fluids that are listed as compatible with the 958 8-speed transmission, and the part numbers for parts required to drop the transmission pan, replace the filter and refill the transmission.

Fluids:
  • Porsche 958 300 540 00 ($84/liter)
  • VW G 055 540 A2 ($24/liter)
  • Febi 29934 ($10/liter)
  • Fuchs Titan 4400 ATF ($12/liter)
  • Ravenol J1D2122 ($14/liter)
~6 liters are needed without opening transmission cooler lines

(12 Liters Ravenol $164 Amazon )

Blau ATF kit for 8 speed Cayennes F2A1044-C with 9 liters of Ravenol, filter, pan gaskets and seals, The parts are OEM, not Porsche($320 from Amazon)

Bonus part numbers & torques:
  • ATF filter 958 325 435 00; bolt torque: 7.5ft/lb, 10Nm ($73.85 Sonnen)
  • ATF filter O ring 958 325 443 00 ($7.71 Sonnen)
  • ATF pan gasket 958 321 371 00 bolt torque: 6 ftlbs, 8Nm, ($83.07 Sonnen)
  • ATF inspection plug WHT 005 510 torque: 12 ft/lbs, 16Nm ( this a common drain/fill plug ) ($2.62 Sonnen )
  • ATF inspection plug gasket 955 321 581 00: ($6.50 Sonnen)
  • ATF Drain plug tube 958 301 437 10: 1.5ft/lb, 2Nm, $5.87 Sonnen

Thanks again Rob!
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Old 09-15-2017, 06:47 PM
  #13  
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I received the ATF gaskets, filter, fill tube and o-rings today from Sonnen. The filter is Japanese Roki co brand with a P/N of PA66 - GF33.

Here are photos of the parts.



ATF Filter with Porsche PN



ATF Filter Manufacturers PN



Pan Gasket



ATF filter o-ring, drain plug and drain plug gasket



Oil tube ( bought as a spare )
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