View Single Post
      12-14-2011, 08:45 AM   #26
European Editor
Dackelone's Avatar

Drives: N54 e82
Join Date: Feb 2010
Location: Bayern, Germany

iTrader: (1)

Arrow Castrol SAF-XJ is the factory fill diff oil...

I thought I might as well post this info here too, since this IS the sticky. PyratOne's awesome diff fluid thread...

1M limited slip differential information

Ok guys... today I went to my BMW Zentrum and asked about the diff fluids for the 1M. Here is what I found out. The factory fill oil for the diff is Castrol SAF-XJ. NOT the +FM, just the regular SAF-XJ oil. This oil should be changed at the first service 2,000 kms or 1,200 miles on M cars and at every third oil change. The Castrol SAF-XJ+FM diff oil is spec'd for the M3 e90, e92, e93 and 1er M Coupe, aka e82 M Coupe, aka 1M.

You need three 500ml bottles to change the diff oil out. The diff holds aprox 1.2L

Castrol SAF-XJ+FM BMW part number: 83222282583 for one 500ml bottle. cost is 30 euros per bottle at my BMW Zentrum.

I asked about the Castrol SAF-XJ+FM diff oil. My dealer had never heard of this +FM stuff... but it is a good part number. The price of +FM is 30 euros per 500ml bottle. Even though my dealer never heard of +FM fluid... the above TSB states to use it durring servicing. Its a little strange since they say they always just use (regular) Castrol SAF-XJ (w/o +FM) when they service M cars. In fact that is all they stock on hand.

I have scan'd the service document(that I got today) for you 1M guys. At the bottom of the first page BMW AG also lists other diff oils that you can use in place of Castrol SAF-XJ+FM.

hinterachsgetriebe öl = rear differential gear oil

Name:  SCAN0261.jpg
Views: 2112
Size:  107.5 KB

Name:  SCAN0262.jpg
Views: 1912
Size:  81.5 KB

SAF-XJ +FM (plus Friction Modifier) some fotos I found on the net of +FM...

Name:  saf-xj-fm....untitled.bmp
Views: 1893
Size:  1.37 MB

Name:  photo-21.jpg
Views: 2438
Size:  104.3 KB

Name:  trans_oil_specs_1M_b0210840_23391939.jpg
Views: 1901
Size:  68.9 KB

Last edited by Dackelone; 12-15-2011 at 08:00 AM..