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      01-31-2018, 06:50 AM   #1
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Differential Oil change video

All,
I created a quick down n dirty on changing the diff oil. Enjoy!

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      02-01-2018, 09:30 AM   #2
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Excellent stuff, thank you!

Looking forward to the DCT transmission fluid change video.
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      02-03-2018, 08:56 PM   #3
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Nice!
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      02-18-2018, 12:22 AM   #4
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Love your videos, very informative. Keep them coming!!
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      02-19-2018, 06:38 AM   #5
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      02-24-2018, 07:08 AM   #6
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Thanks for the video. Two quick tips which may help. 1. Always remove the fill plug first just in case you can not get it out your not left with an empty diff and can not fill it. 2. A cheap hand pump would make easy work of that fill, I bought one years ago to do my diffs, it's worth its weight in gold.

Very helpful video as usual!!
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      02-24-2018, 12:50 PM   #7
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Quote:
Originally Posted by SapphireM5 View Post
Thanks for the video. Two quick tips which may help. 1. Always remove the fill plug first just in case you can not get it out your not left with an empty diff and can not fill it. 2. A cheap hand pump would make easy work of that fill, I bought one years ago to do my diffs, it's worth its weight in gold.

Very helpful video as usual!!
Very good point! I was getting really creative trying to route and squeeze the bottle. Sad thing is that I have a Suction/Dispense pump...just didn't think to use it.
Both nuts are on the diff super tight, so removing the top first is definately super important.
I can only imagine removing the drain plug, then not being able to get the fill plug out
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      02-27-2018, 11:47 PM   #8
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Thanks so much for the video! Curious to get your feedback....have been told by a couple mechanics that it's unsafe to change the trans fluid after 40-50k if it hasn't been done before because the viscosity changed and the solenoids won't like new fluid.

My car has approx 60k now - in your opinion do you think I'd be at risk of damaging something if I did the fluid/filter change? any tips?
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      02-28-2018, 11:45 AM   #9
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Quote:
Originally Posted by Jasoneo5 View Post
Thanks so much for the video! Curious to get your feedback....have been told by a couple mechanics that it's unsafe to change the trans fluid after 40-50k if it hasn't been done before because the viscosity changed and the solenoids won't like new fluid.

My car has approx 60k now - in your opinion do you think I'd be at risk of damaging something if I did the fluid/filter change? any tips?

I would definately change the fluid...your 'mechanics' are basically hittin you with the old "If it aint broke, don't fix it". With the DCT it only makes sense to change at your mileage. If you do everything correctly and refill with the proper amount and correct approved fluid, you'll be just fine.
On mine I've noticed the shifts actually feel a bit better...might be placebo, but I feel that way.

And changing the diff fluid as described in this thread is a BMW maintanence item every third oil change....no filters though...
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      03-23-2018, 07:45 PM   #10
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Quote:
Originally Posted by Fast400 View Post
I would definately change the fluid...your 'mechanics' are basically hittin you with the old "If it aint broke, don't fix it". With the DCT it only makes sense to change at your mileage. If you do everything correctly and refill with the proper amount and correct approved fluid, you'll be just fine.
On mine I've noticed the shifts actually feel a bit better...might be placebo, but I feel that way.

And changing the diff fluid as described in this thread is a BMW maintanence item every third oil change....no filters though...
Why ista oil recomend is not redline 75w140 limitedslip oil. This is the. Best oil in the market.
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      03-30-2018, 01:21 AM   #11
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Quote:
Originally Posted by finlandm5f10 View Post
Why ista oil recomend is not redline 75w140 limitedslip oil. This is the. Best oil in the market.
I'm sure the Redline will work just fine. Sometimes it's all about the licensing and money, so it isn't 'approved'.
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      08-08-2018, 04:28 AM   #12
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Awesome DIY!
Do you just fill it up till it dribbles out?
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      08-10-2018, 12:28 AM   #13
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What would you recommend for diff oil?
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      10-28-2018, 09:15 PM   #14
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did you fill it until fluid starts to drip out of the filler hole?
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      11-27-2018, 08:45 PM   #15
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Quote:
Originally Posted by mrtt View Post
did you fill it until fluid starts to drip out of the filler hole?
That's the best way. Do make sure the car is level.
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      04-22-2019, 10:57 AM   #16
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Awesome video, thank you! 😊
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      04-25-2019, 04:35 PM   #17
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Great video! I enjoy all of them and give you a lot of credit for taking the time to share with the rest of us.

As far as what the best gear oil is for our HAG 220 Electrically Activated M Lock rear axle final drive, (basically an electronic limited slip differential, or ELSD,) these are the four best fluids that I have found that can be had relatively easily here in the US, at least.

I believe the fluid provided in BMW p/n 83222357992 is the same Castrol fluid below, but am not certain. Bottom line is, this one isn't that hard - just pick any one of the following four and rest easy; you only need 1 to 1.5L at most to drain and refill.

Castrol Syntrax Limited Slip 75w-140 GL 5
  • Factory fill, formal BMW approval, (as well as Nissan GTR)
  • Full Synthetic
  • Made in Germany
  • Can be expensive in 500 mL bottles but I found it on Amazon in 1L bottle for $29 shipped
Ravenol Getriebeoel SLS SAE 75W-140 GL 5 LS
  • Polyalphaolefin (PAO) based full synthetic
  • Particularly suited for applications requiring "limited slip" (LS) properties
  • Made in Germany
  • Can be had at Blauparts.com out of Wisconsin for about $24 for 1L
Red Line 75w-140 GL-5
  • Full synthetic formula created from polyol ester base stock
  • Made in California
  • Easily had for about $18-$22 per 1 quart, (ECS Tuning, Jegs, Summit, Bimmerworld, Amazon)
Motul Gear Competition 75w-140
  • 100% Synthetic from Ester base stock
  • Made in France
  • ECS Tuning for about $32 / 1 L
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      07-11-2021, 07:12 PM   #18
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I'm also starting to need to do fluid changes. What size is "big ass torx" exactly? =)
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