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      10-13-2017, 12:53 PM   #331
NorthernDancer
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I want to do trans & diff soon. This DIY is a fabulous help. One issue is access to trans filler plug. I think OP said low profile tool needed. My 8mm hex socket is 1/2 inch drive and 2 1/8 inch long. Its got vice grip marks on the body so obviously I've used it before in a tight situation. With my 1/2 inch breaker bar on the socket, I'm now at 3 inches. Will report after I do the work on exactly how things work out, ie: how much clearance we have to access the fill plug.
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      10-13-2017, 08:45 PM   #332
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Quote:
Originally Posted by NorthernDancer View Post
I want to do trans & diff soon. This DIY is a fabulous help. One issue is access to trans filler plug. I think OP said low profile tool needed. My 8mm hex socket is 1/2 inch drive and 2 1/8 inch long. Its got vice grip marks on the body so obviously I've used it before in a tight situation. With my 1/2 inch breaker bar on the socket, I'm now at 3 inches. Will report after I do the work on exactly how things work out, ie: how much clearance we have to access the fill plug.
FWIW on an N54 1M, a regular 3/8" 8mm hex bit socket fit without any need for low profile tool modifications.
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      10-19-2017, 05:28 PM   #333
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Quote:
Originally Posted by NorthernDancer View Post
I want to do trans & diff soon. This DIY is a fabulous help. One issue is access to trans filler plug. I think OP said low profile tool needed. My 8mm hex socket is 1/2 inch drive and 2 1/8 inch long. Its got vice grip marks on the body so obviously I've used it before in a tight situation. With my 1/2 inch breaker bar on the socket, I'm now at 3 inches. Will report after I do the work on exactly how things work out, ie: how much clearance we have to access the fill plug.
I don't know IF there is three inches of clearance up on the side of the trans. I think there is... but I am not 100% sure. Please report back.

Here is the Hazet tool I use... I got mine locally here in DE years ago for ~30 euros. I can't believe what they are charging for it now...


Here it is on Amazon.com
https://www.amazon.com/HAZET-Chrom-V...+tool+17mm+hex

Here it is on Amazon.de
https://www.amazon.de/HAZET-2760-Haz...rds=hazet+2760

And here on KC Tools...
https://www.kctoolco.com/search.php?...ection=product

Maybe get yourself a "stubby" 17 mm hex socket in 3/8th from Harbor Frieght. Or from SnapOn.

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      12-30-2017, 06:36 PM   #334
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Anyone have any trouble removing the trans filler plug? Mine is on there on tight! Is it reverse thread or something? I'm a little afraid to try too hard to break torque in either direction...and there's not enough clearance for my go-to cheater bar. Any tips?
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      12-30-2017, 07:20 PM   #335
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Originally Posted by Bimmer-Bob View Post
Anyone have any trouble removing the trans filler plug? Mine is on there on tight! Is it reverse thread or something? I'm a little afraid to try too hard to break torque in either direction...and there's not enough clearance for my go-to cheater bar. Any tips?

IF its the first time removing the fill plug... yeah... it is TIGHT! Best thing is to use a new 8mm allen socket(or L-key) with a small cheater bar. It should break loose.

No its not left hand threads. Remember righty, tighty... sometime you can get disoriented when you are laying under the car.

Besure to remove the "fill" plug before draining your trans oil!!

I think the fill and drain plugs are a 8mm allen/socket/hex.

Looking on Amazon here is a nice set. But I am sure you could also pick up something at your local Harbor Freight or Sears or AutoZone.

https://www.amazon.com/Titan-Tools-1...bby+socket+set

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      12-30-2017, 07:58 PM   #336
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Quote:
Originally Posted by Dackelone View Post
IF its the first time removing the fill plug... yeah... it is TIGHT! Best thing is to use a new 8mm allen socket(or L-key) with a small cheater bar. It should break loose.

No its not left hand threads. Remember righty, tighty... sometime you can get disoriented when you are laying under the car.

Besure to remove the "fill" plug before draining your trans oil!!

I think the fill and drain plugs are a 8mm allen/socket/hex.

Looking on Amazon here is a nice set. But I am sure you could also pick up something at your local Harbor Freight or Sears or AutoZone.

https://www.amazon.com/Titan-Tools-1...bby+socket+set

Dackel

Thanks, Dack!

I finally got both plugs off - it was just a matter of finding just the right angle that I could barely slip on my cheater bar (one-half of a floor jack handle). Not much space between the transmission and the ground on jack stands, and (like you mentioned) I was afraid that I might have been turned around and disoriented, and wanted to make extra sure it wasn't a left-handed bolt or something (although that would be a really odd place for one, admittedly).
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      04-14-2018, 10:54 AM   #337
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Hey guys! I've read through this thread and cannot make a clear decision.... I have a 2008 328Xi 6spd So which transmission fluid is best for ease of shifting for summer and winter and safe for both bearings and synchro's ??
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      04-14-2018, 11:57 AM   #338
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Originally Posted by rallly View Post
Hey guys! I've read through this thread and cannot make a clear decision.... I have a 2008 328Xi 6spd So which transmission fluid is best for ease of shifting for summer and winter and safe for both bearings and synchro's ??
What is specified for your vehicle?

I ran Pentoson FFL-3, IIRC, because it crossed to he ZF spec that crossed to the BMW MTL spec for my 135. Ive been happy.

Lower viscosity lubricants will perform better in the cold but compromise high temperature performance to a point. Higher viscosity will be more difficult to shift in some conditions. Some fluids may have friction modifiers that affect synchronization.
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      04-14-2018, 12:09 PM   #339
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Originally Posted by JHZR2 View Post
What is specified for your vehicle?

I ran Pentoson FFL-3, IIRC, because it crossed to he ZF spec that crossed to the BMW MTL spec for my 135. Ive been happy.

Lower viscosity lubricants will perform better in the cold but compromise high temperature performance to a point. Higher viscosity will be more difficult to shift in some conditions. Some fluids may have friction modifiers that affect synchronization.

I have the GM 6spd transmission
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      04-14-2018, 05:41 PM   #340
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Quote:
Originally Posted by JHZR2 View Post
What is specified for your vehicle?

I ran Pentoson FFL-3, IIRC, because it crossed to he ZF spec that crossed to the BMW MTL spec for my 135. Ive been happy.

Lower viscosity lubricants will perform better in the cold but compromise high temperature performance to a point. Higher viscosity will be more difficult to shift in some conditions. Some fluids may have friction modifiers that affect synchronization.
Quote:
I have the GM 6spd transmission
I would use Redline oils. Either Redline ATF-D4 or MTL. The ATF-D4 flows better at colder temps(If you park your car outdoors). Even though it's an ATF... its safe to run in your manual trans. You can also look on Redline's own website for suggested fluids. I think they will say to use ATF-D6 or MTL. But I prefer AFT-D4 for my 135i 6 speed manual. You will need a little over 2.1 liters of trans oil

For the diff you can use either a 75w140 or a 75w90 gear oil from Redline. You will need some way to suck out the old diff fluid - with a fluid extractor. You will need a little over 1.1 liters of diff oil.

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