THE LARGEST BMW 2-SERIES FORUM ON THE PLANET
2Addicts
2Addicts
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
2Addicts | BMW 2-Series forum Technical Topics Mechanical Maintenance and TSBs: Break-in | Oil & Fluids | Servicing | TSB M-Performance LSD Fluid

Post Reply
 
Thread Tools Search this Thread
      04-12-2015, 03:00 PM   #1
PFitto
Ultimate Driving Machine
United_States
11
Rep
54
Posts

Drives: 2015 M235i
Join Date: Aug 2006
Location: Maryland

iTrader: (0)

M-Performance LSD Fluid

Has anybody replaced the fluid on the M-Performance LSD along with their first oil change?
I am coming up on 2,500 miles and would like to do an initial oil change, but also thought of the fluid for the LSD.
Appreciate 0
      04-12-2015, 03:20 PM   #2
Liquidpaper
Captain
Liquidpaper's Avatar
United_States
418
Rep
845
Posts

Drives: '15 M235i
Join Date: Jun 2014
Location: SoCal

iTrader: (0)

Garage List
2015 BMW M235i  [0.00]
Quote:
Originally Posted by PFitto View Post
Has anybody replaced the fluid on the M-Performance LSD along with their first oil change?
I am coming up on 2,500 miles and would like to do an initial oil change, but also thought of the fluid for the LSD.
Can't. Unit is sealed -- has "lifeftime" (lol) oil.

Edit: You can change the oil (probably uses 75w90 Redline or something), but it's quite difficult as the differential does not have a drain plug. You'd need to get the housing open or something.

Last edited by Liquidpaper; 04-12-2015 at 03:30 PM.. Reason: Mo' info.
Appreciate 0
      04-13-2015, 10:50 AM   #3
tke743
Major
tke743's Avatar
United_States
693
Rep
1,021
Posts

Drives: MW ZCP M3
Join Date: Aug 2014
Location: Massachusetts

iTrader: (2)

Yes, and BMW wants $60 per 1/2 qt for it.
Appreciate 0
      04-13-2015, 12:01 PM   #4
gaijin
Mess Deck Commando
gaijin's Avatar
United_States
205
Rep
740
Posts

Drives: M2C
Join Date: Feb 2013
Location: Florida

iTrader: (2)

Agree with Liquidpaper. Sealed and fluid's good for the lifetime of the LSD. Only need attention when servicing LSD.
__________________
///2019 F87 M2 Competition / Alpine White / Black Dakota - Orange Stitching / ZMT/ ZEC/ 2QT/ 403/ Z02/ Z09/ Z21/ Z24/ Z46

Last edited by gaijin; 04-14-2015 at 01:18 PM..
Appreciate 0
      04-13-2015, 03:26 PM   #5
tke743
Major
tke743's Avatar
United_States
693
Rep
1,021
Posts

Drives: MW ZCP M3
Join Date: Aug 2014
Location: Massachusetts

iTrader: (2)

Quote:
Originally Posted by gaijin View Post
Agree with Liquidpaper. Sealed and fluid's good for the lifetime of the diff. Only need attention when servicing diff.
I agree with the statement, but understand that BMW "Lifetime" equals the 50K miles they are willing to warrantee it for. Extra maintenance might be warranted.
Appreciate 2
Tpeterson152.50

      04-13-2015, 03:51 PM   #6
Liquidpaper
Captain
Liquidpaper's Avatar
United_States
418
Rep
845
Posts

Drives: '15 M235i
Join Date: Jun 2014
Location: SoCal

iTrader: (0)

Garage List
2015 BMW M235i  [0.00]
Quote:
Originally Posted by tke743 View Post
I agree with the statement, but understand that BMW "Lifetime" equals the 50K miles they are willing to warrantee it for. Extra maintenance might be warranted.
Agreed. It's "lifetime," not lifetime.
Appreciate 0
      04-13-2015, 04:39 PM   #7
Kiwi
Captain
New Zealand
132
Rep
921
Posts

Drives: 2015 BMW M Sports Convertible
Join Date: May 2005
Location: Auckland New Zealand

iTrader: (0)

The diff's have been sealed for a least 10 years and I know of none of my friends who have had any problems with their diff's.
__________________
2015 220i M Sport convertible.
2016 225xe M Sport.
Appreciate 0
      04-13-2015, 04:45 PM   #8
Liquidpaper
Captain
Liquidpaper's Avatar
United_States
418
Rep
845
Posts

Drives: '15 M235i
Join Date: Jun 2014
Location: SoCal

iTrader: (0)

Garage List
2015 BMW M235i  [0.00]
Quote:
Originally Posted by Kiwi View Post
The diff's have been sealed for a least 10 years and I know of none of my friends who have had any problems with their diff's.
Welded, yes. That is absolutely true. However, the MP LSD has no drain plug (but is welded, just like a regular BMW Diff) for the gear oil. Differentials with limited slip functionality usually have a drain plug for the gear oil (so you can change it).
Appreciate 0
      04-13-2015, 07:53 PM   #9
tke743
Major
tke743's Avatar
United_States
693
Rep
1,021
Posts

Drives: MW ZCP M3
Join Date: Aug 2014
Location: Massachusetts

iTrader: (2)

Quote:
Originally Posted by Kiwi View Post
The diff's have been sealed for a least 10 years and I know of none of my friends who have had any problems with their diff's.
Dif's or LSD's? There is a big difference in the required maintenance. We are talking about a clutch type.
Appreciate 0
      05-22-2015, 08:35 AM   #10
Pparana
Captain
437
Rep
965
Posts

Drives: 2015 m235i
Join Date: Oct 2014
Location: Jacksonville Fl

iTrader: (1)

guys there is a lot of confusion on this.

A. There is a fill plug on the m performance lsd. You can use a transfer pump and change the fluid at will. The lsd does not need to be removed. I do mine every 4-5 track days. I use Redline.

B. The fluid is prob. good for 100k in a stock car that never gets the oil heated up. On the track it may get out of heat range and the fluid will not lubricate properly accelerating wear.

C. Clutch pack system so the oil gets contaminated with the dust from the friction plates.
Appreciate 5
jpnh1399.00
Tpeterson152.50
amw896527.50

      05-26-2015, 12:28 PM   #11
EEBreh
Second Lieutenant
98
Rep
231
Posts

Drives: "M" 235i
Join Date: Mar 2015
Location: US

iTrader: (0)

Looks like there is a drain/fill plug. The 1 series guys change the fluid... http://www.1addicts.com/forums/showthread.php?t=409293

A: I see no doubt in this post.

B: BMW use to recommend that the oil should be changed at the 1200 mile break in point and then changed every 30,000 miles thereafter. This all changed as soon as they were on the hook for maintanence. See that as you will.

C: Definitely.


Quote:
Originally Posted by Pparana View Post
guys there is a lot of confusion on this.

A. There is a fill plug on the m performance lsd. You can use a transfer pump and change the fluid at will. The lsd does not need to be removed. I do mine every 4-5 track days. I use Redline.

B. The fluid is prob. good for 100k in a stock car that never gets the oil heated up. On the track it may get out of heat range and the fluid will not lubricate properly accelerating wear.

C. Clutch pack system so the oil gets contaminated with the dust from the friction plates.
According to the ETK, the part number for the BMW oil is 83222295532 (this may differ for the LSD). My feelings are A: I don't want to void the warranty and B: I want to keep the car for a long period of time (so I don't want a noisy diff at 90k miles.) Therefore I am going to follow BMWs older recommended intervals with their fluid. If the diff blows up and they take an oil sample, I don't want them to refuse to cover it because a fluid (that was probably better than OEM like redline) was used so I will use their fluid.
Appreciate 0
      05-20-2016, 11:24 AM   #12
Kolyan2k
Major General
470
Rep
5,449
Posts

Drives: 2006 S2000
Join Date: Apr 2010
Location: Boston

iTrader: (1)

So whats the part number for the fluid in this LSD ? I figure maybe its a good idea to get this changed along with manual tranny
Appreciate 0
      06-27-2016, 12:25 PM   #13
mdputnam
Lieutenant
mdputnam's Avatar
281
Rep
556
Posts

Drives: 135i & M235i Convertibles
Join Date: Dec 2011
Location: SoCal

iTrader: (0)

It is hard to find information on it, but I was told by a dealer mechanic that cars with the BMW M Performance limited slip differentials should use:
BMW Differential Gear Oil SAF-XJ+FM part number83222282583. He said that although for some clutch differentials the BMW specification calls for their standard differential oil, there is a service bulletin out basically stating that if clutch type limited slip differentials are making noise to switch them to the BMW differential oil with friction modifiers.


Based on Forum consensus, this is the same as Castrol Syntrax Limited Slip 75W-140

Both of these oils contain friction modifiers for the clutches.

Last edited by mdputnam; 06-27-2016 at 01:19 PM..
Appreciate 0
      07-02-2016, 12:40 AM   #14
Solarphil
Private
67
Rep
80
Posts

Drives: Nickole - MG & CR M235i
Join Date: Aug 2014
Location: United States

iTrader: (0)

Quote:
Originally Posted by gaijin View Post
Sealed and LSD's good for the lifetime of the fluid. Only need attention when replacing LSD.
There, I fixed that for you.

BMW used to have a realistic service interval for a performance vehicle, until they included "free" maintenance - at which point the service interval went to crazy lengths. The reality of "lifetime" fluid is, if you wait till you have a problem to change the fluid, then you replace the aluminum housing containing said fluid at the same time because it's now reached its end of service life - the differential becomes as disposable as the lube. On the other hand, if you replace the fluid at regular intervals you can realistically expect the diff to last the lifetime of the car.
Appreciate 0
      12-24-2016, 02:46 PM   #15
Kolyan2k
Major General
470
Rep
5,449
Posts

Drives: 2006 S2000
Join Date: Apr 2010
Location: Boston

iTrader: (1)

So is 75w140 confirmed for M-Performance LSD ?
Appreciate 0
      12-27-2016, 07:25 PM   #16
Robimplicit
Enlisted Member
United_States
7
Rep
41
Posts

Drives: m235i; 335d
Join Date: Sep 2015
Location: Cincinnati

iTrader: (0)

Quote:
Originally Posted by mdputnam View Post
It is hard to find information on it, but I was told by a dealer mechanic that cars with the BMW M Performance limited slip differentials should use:
BMW Differential Gear Oil SAF-XJ+FM part number83222282583. He said that although for some clutch differentials the BMW specification calls for their standard differential oil, there is a service bulletin out basically stating that if clutch type limited slip differentials are making noise to switch them to the BMW differential oil with friction modifiers.


Based on Forum consensus, this is the same as Castrol Syntrax Limited Slip 75W-140

Both of these oils contain friction modifiers for the clutches.
I have some of this limited slip diff oil with friction modifiers. Would it be OK to use this in the standard open diff on my m235?

Thanks.
Appreciate 0
      12-30-2016, 09:59 PM   #17
Polo08816
Brigadier General
1114
Rep
3,139
Posts

Drives: 2014 335i M Sport
Join Date: Sep 2010
Location: MD

iTrader: (0)

Quote:
Originally Posted by Robimplicit View Post
I have some of this limited slip diff oil with friction modifiers. Would it be OK to use this in the standard open diff on my m235?

Thanks.
It should be fine to use with a standard open diff. It will not harm it.
Appreciate 0
      12-30-2016, 10:00 PM   #18
Polo08816
Brigadier General
1114
Rep
3,139
Posts

Drives: 2014 335i M Sport
Join Date: Sep 2010
Location: MD

iTrader: (0)

Quote:
Originally Posted by Kolyan2k View Post
So is 75w140 confirmed for M-Performance LSD ?
Yes. I've attached a PDF. Look at page 29/30.
Attached Images
File Type: pdf lsdprocedures.pdf (2.27 MB, 383 views)
Appreciate 0
      12-31-2016, 12:08 PM   #19
Kolyan2k
Major General
470
Rep
5,449
Posts

Drives: 2006 S2000
Join Date: Apr 2010
Location: Boston

iTrader: (1)

Quote:
Originally Posted by Polo08816 View Post
Yes. I've attached a PDF. Look at page 29/30.
I am wondering if Mobil1 75w140 is the same thing thats available everywhere. They list some Mobil1 VS 500 lube thats also 75w140 but not sold anywhere lol
Appreciate 0
      12-31-2016, 03:49 PM   #20
jpnh
Brigadier General
jpnh's Avatar
1399
Rep
3,395
Posts

Drives: NA
Join Date: Aug 2016
Location: USA

iTrader: (0)

These units are NOT sealed

There's a single fill port you can shove an extractor in to pull fluid and then re-fill

The notion that fluid for any mechanical assembly on these vehicles is lifetime is retarded

ESPECIALLY considering how little fluid the diff hold

Mine will get drained and refilled at same time as tranny which will likely be ~6k
Appreciate 0
      12-31-2016, 07:49 PM   #21
Polo08816
Brigadier General
1114
Rep
3,139
Posts

Drives: 2014 335i M Sport
Join Date: Sep 2010
Location: MD

iTrader: (0)

Quote:
Originally Posted by jpnh View Post
These units are NOT sealed

There's a single fill port you can shove an extractor in to pull fluid and then re-fill

The notion that fluid for any mechanical assembly on these vehicles is lifetime is retarded

ESPECIALLY considering how little fluid the diff hold

Mine will get drained and refilled at same time as tranny which will likely be ~6k
+1.

It's certainly not "lifetime" for a clutch based LSD.
Appreciate 0
      01-01-2017, 11:20 AM   #22
Kolyan2k
Major General
470
Rep
5,449
Posts

Drives: 2006 S2000
Join Date: Apr 2010
Location: Boston

iTrader: (1)

How often do you drain that? I followed 15k intervals on S2k and fluid was draining like new....
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 09:55 AM.




2addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST