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BMW Operating Fluids - Rear Axle (33 01.14)

WARNING: This page is about the 325is Automatic, which is a different variant/trim than selected.
Publication date: 2014-01-01
Reference number: 33 01.14

BMW OPERATING FLUIDS - REAR AXLE

BMW OPERATING FLUIDS - REAR AXLE

TECHNICAL SERVICE

Reference Number(s): 33 01.14, Date of Issue:  January 2014
GROUP: 33 Rear Axle

Fluids and sealers that are described in this Operating Fluids manual are BMW approved. Using non approved fluids or sealers can lead to premature failure and will not be covered under Warranty.

1.0 GENERAL INFORMATION ON FINAL DRIVE OIL

Final Drive oil or hypoid gear lubricant must conform with the following requirements because of the high loads which occur on the profiles of the hypoid gear teeth:

  1. - Load carrying capacity.
  2. - Sufficient protection against seizure.
  3. - Good wear protection.
  4. - Optimal friction and temperature behavior.
  5. - Seal compatibility.
  6. - Aging resistance.

These and other properties are already contained in brand-name hypoid gear lubricants because of the high content of EP additives (EP = extreme pressure).

Oil Additives

The factory has not approved oil additives for hypoid gear lubricants.

All final drives are designed in such a manner that they do not require any type of oil additives. Any type of additives is fundamentally rejected by the factory. BMW NA cannot accept any liability for follow-up damage resulting from the use of additives.

2.0 APPROVED FINAL DRIVE OILS FOR FRONT AND REAR AXLE FINAL DRIVES WITH AND WITHOUT LIMITED SLIP OR VISCOUS COUPLING

Mineral based final drive oils are no longer recommended due to the release of synthetic final drive oils for all vehicles with or without limited slip differentials.

Limited Slip Differentials

With the introduction of the Z3 roadster a new synthetic final drive oil for all vehicles with a multi-plate limited-slip differential has been released. The new BMW final drive oil SAF-XJ will replace the old final drive oil SAF-XLS.

The SAF-XLS final drive oil is not to be used in the final drive of the Z3 roadster.

Use only the SAF-XJ in the final drive of the Z3 roadster.

NOTE: If a non-limited slip differential oil is used in a limited slip differential a whining or chattering sound can be heard on very tight turns and will eventually result in a failure of the differential.
Description Quantity Part Number
BMW Synthetic Final Drive Oil (with multi-plate Limited Slip Differential) 55 liter drum (SAF-XJ) 83 22 1 470 080
E71 X6 xDrive35i and X6 xDrive50i: Rear Differential with Superposing Gear Units (QMVH)

The rear differential assembly consists of three separate filler plugs, one in the center for the angle drive with differential gear and one additional filler plug on each of the left and right superposing gear units.

Angle drive with differential gear (center filler plug): PN 83 22 9 407 768 (SAF-XO)

Superposing gear units (two outer filler plugs): PN 83 12 0 445 838 (SAF-CARBON)

For more information regarding filler plug locations and operation please refer to the TIS Website - Technical Training - ST710 E71 Complete Vehicle Workbook - E71 Chassis Dynamics Workbook.

Motorsport Vehicles:
Model Part Number
All E46 M3, E60 M5, E63/E64 M6, E85 M roadster, E86 M coupe 83 22 1 470 080 (SAF-XJ)
All F10 M5, F12 and F13 M6 with S63T engine 83 22 1 470 080 (SAF-XJ)
E82 (M Coupe) with the N54T engine Only use the specially formulated rear differential oil, BMW part number 83 22 2 282 583 (Quantity 3). SI B33 02 11
E90, E92 and E93 (M3) with the S65 engine

Non Limited Slip Differentials

Description Quantity Part Number
BMW Synthetic Final Drive Oil (without multi-plate limited slip differential, or with viscous differential lock (325iX/iXA) 55 liter drum (SAF-XO) 33 11 7 695 240 or 07 51 2 293 972
NOTE: See S.I. Bulletin B 33 01 92 for additional final drive oil info.

3.0 FINAL DRIVE OIL FOR BMW M1 MOTORSPORT COUPE

The final drive of a BMW M1 is integrated into the manual transmission and the oil supply is accomplished with a mutual oil filling.

Use reputable brand SAE 80 manual transmission oil conforming with specifications MIL-L-2105 A or API-GL 4.

4.0 OIL CHANGE INTERVALS

Maintenance requirements per the vehicle's Service Booklet or the respective Service Maintenance Checklist.

Replacement final drives: same as for new vehicles.

All models as of 9/97 production are factory-filled with synthetic rear axle oil having a long-life service rating. No oil changes are required for the life of the vehicle.

5.0 CARS WITHOUT SERVICE INDICATOR (INCLUDING BMW M1)

  1. First oil change at 600 miles
  2. Further oil changes at 18,000 miles

Special rule for BMW 530i, 528i (E 12):

  1. 1st oil change at 600 miles after final drive replacement
  2. 2nd oil change at 4,500 miles after final drive replacement
  3. Further oil changes at 9,000 miles intervals, beginning at 9,000 miles.

6.0 CARS WITH SERVICE INDICATOR

Refer to Service Maintenance checklist for respective model year.

Break-In Procedures

Drive the car with changing engine speeds and road speeds during the first 1,200 miles/2,000 km, but never faster than 2/3rds of maximum speed in a selected gear. Avoid using full throttle and kick-down positions of the accelerator pedal during this period.

BMW M3/M5/M6

  1. Up to 1,200 miles max. engine speed 5500 RPM
  2. Generally avoid full-throttle position of the accelerator.

These break-in procedures are, of course, also applicable to replacement final drives.

7.0 OUTPUT SHAFTS

The joints of output shafts have permanent grease lubrication and require no servicing.

The amount of joint grease required after repairing is supplied in the "dust cover repair kit".

8.0 WHEEL BEARINGS

Ball Bearings E24 (Since 5/82), E28, E30, E31, E32 And All Following

Bearing unit is lubricated for its service life, cannot be disassembled and does not require subsequent lubrication.

Grooved Ball Bearings E12, E21, E23, E24 Before 5/82

Grease type: Retinax A (former BMW Part No. 81 22 9 407 710)

CRC Part No. SL 3131

9.0 DIFFERENTIAL HOUSING FINAL DRIVE COVER ATTACHMENT AND SEALING

On 735i/iL, 750iL, M6 and M5 (E28) models, the attaching bolts are to be installed with Hylogrip/Loctite 270 (green) thread sealant (former BMW Part No. 81 22 9 400 086).

  1. Wurth Part No. 8932700
  2. Loctite Part No. 21438

See S.I. Bulletins B 33 01 89 (1869) and B 33 01 88 (1621) .

All Models

Resealing Final drive Cover can be obtained via Applied Industrial Technologies

  1. Telephone: 517-787-2414
  2. Payment Type: MasterCard or Visa
  3. Order item number 39246 (Loctite 5970 300ml)

Refer SIB 33 03 08 for complete details

10.0 PINION FLANGE LUBRICANT

All Models

To eliminate cracking or clicking noise from the rear of the vehicle while engaging a drive gear, releasing clutch, during load reversal (shifting from reverse to drive, etc.) or when accelerating from a stationary position.

BMW Part No. 83 22 0 443 864 Lubricant

Refer SI B33 04 08 for application details.

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