BMW Cars 1999-06

Automatic Transaxle

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Drain, Refill & Filter Service




NOTE
Refer to the Filling Drivetrain Fluids heading in this section before beginning any work.

  1. The lubricant must be hot before it is drained. Drive the car until the engine reaches normal operating temperature.
  2.  
  3. Remove the filler plug to provide a vent. Be sure to remove this first. If the fluid is drained and trouble is encountered removing the fill plug, the car will be out of service until a method to remove the stuck fill plug is found.
  4.  
  5. Place a suitable drain pan underneath the transmission drain and then remove the 17mm hex head drain plug.
  6.  
  7. Allow the lubricant to drain completely. Clean the magnetic drain plug of any excessive metal particles, reinstall and torque to specification.
  8.  

Manual transmission drain and fill plug torque:



All except S6S 560G transmission: 36.8 ft. lbs. (50 Nm)
 
S6S 560G transmission: 38 ft. lbs. (52 Nm)
 

  1. Using the recommended fluid, fill and top off the fluid level as necessary. Refer to the filling drivetrain fluids heading in this section and add lubricant through the access hole on the side of the transmission until the level is at the edge of the hole, as outlined earlier.
  2.  


WARNING
Fill the transmission with the recommended lubricant. Consult with your local BMW dealership for specific lubricant information.


NOTE
Due to running production changes, the lubricant in your transmission may be a different type than what is listed here or in your owner's manual. The recommended fluid for the transmission installed in your vehicle will be specified on a tag on the transmission body.

  1. When the lubricant level is up to the edge of the filler hole, replace the filler plug. Drive the car for a few minutes, stop, and check for any leaks.
  2.  



Click image to see an enlarged view

Fig. Use a properly fitting boxed end wrench to avoid damaging the drain plug during removal


NOTE
On transmissions not equipped with a dipstick tube, refer to the Filling Drivetrain Fluids heading in this section before beginning any work.


CAUTION
Do not drain the fluid while it is hot as it splatters easily and severe burns could result.

  1. Raise and safely support the vehicle in a level plane.
  2.  
  3. Place a suitable drain pan under the transmission sump. Remove the dipstick on vehicles so equipped. On models with locking dipsticks, tilt the top of the dipstick to unlock.
  4.  
  5. On models not equipped with a drain plug, drain the fluid using the oil filler tube by loosening and removing the oil filler tube from the sump pan. Be ready to catch fluid as it drains.
  6.  
  7. On models equipped with a drain plug, remove the drain plug and catch the draining fluid.
  8.  
  9. If removed, install the oil filler tube, and torque to 71 ft. lbs. (98 Nm).
  10.  
  11. On models with a drain plug, replace the gasket or crush washer on the drain plug and torque as follows:
  12.  

E30 models:



M10 plugs: 11-12 ft. lbs. (15-17 Nm)
 
M18 plugs: 29-33 ft. lbs. (40-46 Nm)
 

E36 models:

A4S 270 R, A4S 310 transmission, drain and fill plugs:



M14 Oil filler: 18 ft. lbs. (25 Nm)
 
M18 x 1.5 Oil drain: 24 ft. lbs. (33 Nm)
 

A5S 310 Z transmissions:



M10 Drain plug: 11 ft. lbs. (15 Nm)
 
Fill plug, M30 thread, large inverted hex: 74 ft. lbs. (100 Nm)
 

  1. Initially fill the transmission with the proper amount of the recommended fluid, then refer to the fluid level checking procedures in this section and top off as necessary.
  2.  


NOTE
On models with two sumps, if both sumps are drained, add an additional 2.1 quarts (2.0 liters)


NOTE
Initial fluid fill amounts are approximated and could vary. Always check and top off the system as outlined in this section before driving.

Initial transmission fluid fill amounts:

E30 models:



3.2 quarts (3.0 liters)
 

E36 models:



A4S 270R/A4S310R transmissions: 3.2 quarts (3.0 liters)
 
A5S 310 Z transmissions: >3.5 quarts (3.3 liters)
 

  1. Check and adjust the fluid level as outlined in this section.
  2.  
  3. Test drive and check for fluid leakage and normal operation.
  4.  



Click image to see an enlarged view

Fig. Automatic transmission drain plug. Always use a new sealing washer when reinstalling

 
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