07-16-2018, 04:46 PM | #1 |
Private First Class
102
Rep 103
Posts |
Diff fluid confusion
Before someone says "This has been answered in other posts", I did do my research.
The question is what is the correct part number for the diff fluid in the F80 M3. Real OEM states - 83-22-2-365-988, FINAL-DRIVE GEAR OIL, MSP/A SAE 75W-140 https://www.realoem.com/bmw/enUS/par...&q=83222365988 New TIS states - BMW MSP/A synthetic differential oil 83 22 9 405 462 1000 ml (Trade Unit) https://www.newtis.info/tisv2/a/en/f...-guide/1GdD0La what I have seen here: 83-22-2-282-583 500 ml bottle SAE 75W-140 SAF-XJ+FM What the dealer put in: 83-22-2-357-992, 1L bottle SAE 75W-140 SAF-XJ This post states the FM booster was only for E-90 series: https://f80.bimmerpost.com/forums/sh....php?t=1435577 So what is correct? I know BMW changes the part number for items in different size bottles, 500ml bottle is a different PN from the 1L bottle for the same stuff, but the main point would be do we need to use the stuff with the friction modifiers (+FM)? |
07-16-2018, 04:57 PM | #2 |
Enlisted Member
20
Rep 43
Posts |
Doesn't mean this is right, but my dealer told me
SAF-XJ+FM https://www.ecstuning.com/b-assemble...kit/f8xdiffkt/ |
Appreciate
1
Buxby0.00 |
07-16-2018, 07:14 PM | #3 |
Private
82
Rep 68
Posts |
SAF-XJ is the correct fluid. Should come in a 1 liter bottle. bmw came out with a bulletin that says if the XJ+FM was put in a F8x diff and it failed they would not cover it as it is the wrong fluid.
|
Appreciate
0
|
07-16-2018, 07:42 PM | #4 | |
Major General
4969
Rep 6,854
Posts |
Quote:
My dealership (and confirmed my local trusted Indy shop) told me our cars use the fm version (all recent M's do). On another note, the fm stands for friction modifier and is simply an additive which keeps the noise level down on the diff. You would def not run afoul of the warranty by using the oem non fm version. |
|
Appreciate
0
|
07-16-2018, 08:20 PM | #5 | |
Private
82
Rep 68
Posts |
Quote:
M2, M3, M4 – INCORRECT FLUID USED TO REFILL THE REAR DIFFERENTIAL MODEL F80 (M3) F82, F83 (M4) F87 (M2) situation BMW quality monitoring of the MSport differentials being replaced under warranty discovered a significant number of these differentials failed because the incorrect fluid used during the 1,200 miles Maintenance Service. In many cases, technicians replaced the fluid with wrong oil, SAF-XJ+FM Boosted oil (P/N 83 22 2 282 583), which is designed specifically ONLY to be used in the previous generation M3 (E90/E92/93) vehicles. Consequently, reduced performance, premature wear and excessive noise complaints were experienced. INFORMATION For the M2 (F87), M3 (F80) and M4 (F82, F83) vehicles, ONLY use: Synthetic MPS/A BMW Final Drive Gear Oil (PN 83 22 2 357 992, 1 liter) during a 1,200 ml. Maintenance Service or after a differential replacement. warranty information Warranty claims for 1,200 mile Maintenance Services and/or subsequent replacements of the MSport rear axle differential where the incorrect differential oil was use for refilling during the repair will be rejected and/or debited back to your center. |
|
Appreciate
3
|
07-16-2018, 09:29 PM | #7 | ||
Major General
4969
Rep 6,854
Posts |
Quote:
|
||
Appreciate
0
|
07-16-2018, 09:55 PM | #8 |
Brigadier General
2931
Rep 3,285
Posts
Drives: 2002 M5;2007 M Coupe;2020 M2C
Join Date: Jul 2011
Location: Tucson
|
Just checked my break-in service. SAF-XJ (no FM, part ending in 992) was used. Whew. Sounds like everyone should check! My other Ms use SAF-XJ+FM, so I would have guessed that for the F80...(obviously my older Ms have mechanical LSDs).
__________________
2020 F87 M2C Hockenheim Silver/MT
2002 E39 M5 Sterling Gray/Caramel 2007 E86 Z4M Coupe Silver Gray/Black 2021 Kia Telluride (hauler) |
Appreciate
0
|
07-17-2018, 01:57 AM | #10 |
Brigadier General
2510
Rep 4,381
Posts |
If I had a friend with an M4 and say he swapped whatever diff oil BMW used at the first service for standard Castrol SAF-XJ diff oil (without extra FM) he may have found (subjectively) that the diff seemed a little more aggressive at locking up....without any increase in noise.
|
Appreciate
0
|
07-17-2018, 12:04 PM | #11 |
Major General
4969
Rep 6,854
Posts |
matt123 I stand corrected. I contacted a few other parts departments with my vin and was given the part number for the non FM version.
I had just ordered the diff change kit from ECS tuning which calls for the +FM version to be used but I will now be returning it. Saved me from filling with the incorrect fluid and also a good deal of $ since the non FM version is much less expensive. |
Appreciate
0
|
07-17-2018, 05:11 PM | #12 |
Lieutenant
122
Rep 413
Posts |
I wouldn’t worry if you put the fm in by mistake just change it out. I’m sure there are diffs out there with fm in them now that was put in by the dealer.
Last edited by B-52Gunner; 07-17-2018 at 05:28 PM.. |
Appreciate
0
|
07-18-2018, 05:54 PM | #13 |
Private First Class
102
Rep 103
Posts |
so it looks like PN 83 22 2 357 992 is the correct stuff.
Frustrating though that it takes this kind of effort to find that out. I even had a dealer tell me he wouldn't give me the part number to the fluid as it is not their policy to give out part numbers...… The F-ing part number is on the bottle if I came in and bought it - the fact that I am on the phone shouldn't make a diff (pun intended). |
Appreciate
0
|
07-19-2018, 06:52 AM | #14 | |
Major General
4969
Rep 6,854
Posts |
Quote:
|
|
Appreciate
1
Alpine_F82215.50 |
Post Reply |
Bookmarks |
Thread Tools | Search this Thread |
|
|