08-01-2019, 10:46 AM | #1 |
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Differential Fluid F80 help
Hi all I went to my local BMW parts guy and obtained
P/N 83 22 2 357 992 75w 140 SAE 1L to change my differential fluid. I also got the two plugs to swap out but I can't seem to find how many liters I actually need. I keep hearing 1L is fine but then I see some that say 1.5L.... I plan to do this today and would like some feedback. Thank you! |
08-01-2019, 11:51 AM | #2 |
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Have 2 liters on hand for the odd chance that you pump in 1 liter and do not see any fluid flow out from the fill hole. I did this a few weeks back and from what I recalled, I may have pumped 1.3 liters until it flowed out. Either way, I had opened both bottles.
Last edited by N55Msport; 08-01-2019 at 11:59 AM.. Reason: typo |
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08-02-2019, 06:48 AM | #3 |
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You put as much in the fill hole until it comes out the fill hole, then you put plug back in. Somewhere between 1 and 2L is my guess.
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08-03-2019, 01:31 PM | #5 |
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08-03-2019, 02:02 PM | #6 | |
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08-06-2019, 06:38 AM | #7 |
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To change oil in differential you need 1 L (better buy 2 of them) of this Oil and 2 Differential Oil Drain / Check Plug. I change oil in diff every 25 000 KM.
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08-09-2019, 06:10 PM | #8 |
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My car got the break in change at 1400mi and 2nd change DIY at 15,300mi. I know someone who's diff failed, fortunately under CPO warranty. All my LSD cars typically get a change at no more than 30k. I think 5 oil changes is too long (40-50k). Due to the complexity of this diff I think a little more often is money well spent. I autocross my car so will do the diff about once per year. I DIY and used the correct BMW fluid purchased. It took about 1.6L, do definitely get two bottles.
Last edited by JeffO; 08-09-2019 at 06:13 PM.. Reason: Additional info added. |
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12-17-2020, 07:47 PM | #9 |
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Curious why both drain and check plugs need to be changed each time when the o-rings could be simply changed?
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12-17-2020, 10:04 PM | #10 |
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Because I think it doesn't have an o ring, more like a crash washer. So is saver to just replace it.
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12-18-2020, 10:46 AM | #12 |
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05-09-2021, 09:21 PM | #13 |
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Bumping an older thread, is everyone going with OE BMW fluid? FCP Euro has both Motul and Liqui Moly listed as compatible. I have 2 quarts of OEM and 2 plugs in cart ready to go, just asking for a friend
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05-09-2021, 10:28 PM | #14 |
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I have LM 75W140 in my rear diff for the last 15,000 miles. No issues, leaks, noises etc.
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05-10-2021, 09:41 PM | #15 | |
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Liqui Moly will cut it. But Motul gear stuff is a different world! |
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05-12-2021, 09:46 AM | #16 |
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anyone using the ECS kit with Castrol diff oil? Debating between this and OEM. Car is stock and daily driven hard on the street but not tracked.
https://www.ecstuning.com/b-assemble...it/f8xdiffkt2/ |
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05-12-2021, 11:34 AM | #17 | |
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05-20-2021, 11:08 PM | #18 | ||
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07-19-2021, 12:14 AM | #20 | |
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I try to stick to OEM when possible.
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