Porsche PDK clutch fluid and final drive gear oil change, on 991.1
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Published 2023-08-20
Final drive gear oil is 75W-90 full synthetic race oil, like Motul Gear 300 or Porsche p/n 105777. 3 liters needed.
Fill hole screw (8mm hex) torque 20ftlb.
Differential space drain screw torque (5mm hex) 7.5 ftlb
Gearwheel set space drain screw torque (8mm hex) 20 ftlb
PDK ATF ( Clutch fluid) Porsche p/n 00004330513 or Pentosin FFL-3 Synthetic. 6 liter capacity but likely will need just 4 or 5 liters.
Porsche PDK pan/filter. A generic filter is also offered on Amazon and Ebay, some including the pricey little bolts you need, since the original aluminum bolts aren't strong enough to be torqued twice. Will need 13 new pan bolts p/n PAF-009-388 (old p/n 9G1-321-801-00). These bolts are M6-1.0×25 with a 18mm wide flange head.
PDK drain pan bolt torque 11ftlb + 2ftlb
Fill hole screw torque 20ftlb.
All Comments (19)
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Great video. Thanks Jack for taking your time documenting all your work!
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Thank you for the extremely well done video. I appreciate your explanation and effort. Well done.
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well scripted.. very clear instructions described at a comfortable pace. thx... feeing more confident that this backyard techie can handle the task
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I'm in the UK and this was a great video and straight forward instructions for the competent DIY folk amongst us, why pay stealer prices if you're able yourself ? concise and easily understood directions, many thanks from across the pond .
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Great video may thanks for posting
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Thanks Jack
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Hi Jack, thank you for such a helpful video. Can you explain how the trans and diff share the reservoir without the two fluids cross contaminating?
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I think you missed filling the rear diff fill spot on top. I kept the 5mm drain out but put the larger 8mm drain plug back in and as I filled 2.7 liter nothing dripped out of the small 5mm drain plug so the oil isn’t getting to that area.
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What a great video, thanks! Two questions re the pdk clutch fluid change: Do you really need to remove the read drain plug (5 mm), since it is located higher than the front drain plug (8 mm). Or are there two different chambers? If you fill in exactly the same volume as you pour out, why do you then need to measure the temperature after filling in? I´ve got a 991.2 GT3
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Great video Jack! I'll have to watch this again and concentrate more, I was getting a little confused on the two different fluid changes. I do have some questions though. What tool did you use to measure the temp for the PDK fluid and final drive gear fluid? This question is in regards to the PDCC...Do you have a video on how to service it? As well as the AOS, how to change it out? I have worked on a Porsche before, but it was oil cooled, a 1984 Carrera, it seems to be a whole lot different than this one! My current Porsche is a 911 Carrera S 2012 991.1 with PDK. Thanks for the videos!
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Hey Jack. May I ask what car lift do you have? Rough cost and do you recommend it? Also what ceiling height is required. Ty
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Hi again Jack. How often should the big partly triangle formed plastic shield (with 13 screws) with filter for the pdk clutch ATF fluid be changed? There are no nothing written Porsches inspection sheet. With same intervals as the pdk clutch ATF fluid or the PDK gear oil change, or other? My car is a 2018 991.2 with 7000 miles.
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🙏
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Wondering if you recalibrated it? If so, did you take to someone with piwis?
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Don't you need to engage the "fill" on the PDK?
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Did you change anything or just talk about how it could be done?
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I don’t understand why your title says 991.1, a 2012 is not a 991.1, isn’t that the last year of the 997?
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😊 promosm
