Checking/topping up oil level in automatic transmission (AISIN)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2007 MINI Cooper, 2006 MINI Cooper, 2005 MINI Cooper, 2004 MINI Cooper, and 2003 MINI Cooper. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

24 4 240

IMPORTANT: Use only the approved TRANSMISSION OIL in this automatic transmission.

Failure to comply with this requirement will result in serious damage to the automatic transmission.

Installation note:

Details of approved oil grade:

refer also to adhesive label on transmission oil sump.

NOTE: Level out oil level in automatic transmission via overflow connector.

Necessary preliminary tasks:

Remove underbody protection.

On vehicles with hydraulic steering gear:

Remove heat shield from hydraulic steering gear.

NOTE: Special tool 24 4 240 must be shortened to overall length of 36 mm.

Fig 1: Identifying Special Tool (24 4 240) Dimension

Courtesy of BMW OF NORTH AMERICA, INC.

Move selector lever to "P" position.

The vehicle must be horizontal and secured against rolling off.

Connect BMW diagnosis system.

Release oil filler plug (1) using special tool 24 4 240.

Tightening torque TORQUE SPECIFICATIONS .

Fig 2: Identifying Oil Filler Plug

Courtesy of BMW OF NORTH AMERICA, INC.

Top up transmission oil. (Transmission oil has been drained)

Graphic similar:

Remove M10 oil drain plug (1) from transmission oil sump.

Tightening torque TORQUE SPECIFICATIONS .

Pour in automatic transmission fluid through oil filler plug until oil emerges at oil drain plug.

Start engine and run at idle speed.

Check whether ATF emerges at M10 oil drain plug.

If not, continue to add ATF.

Fig 3: Identifying M10 Oil Drain Plug

Courtesy of BMW OF NORTH AMERICA, INC.

Actuate footbrake and at idle shift through all gears "P" to "D" twice for more than 2 seconds.

Then move switch to "P" position.

Again check whether ATF emerges at M10 oil drain plug.

Check the temperature of the automatic transmission fluid with the BMW Diagnosis System.

Increase temperature of automatic transmission fluid to 35... 45 °C.

Top up automatic transmission fluid until it flows over.

Screw in oil filler plug and oil drain plug.

Tightening torque TORQUE SPECIFICATIONS .

Installation note:

Replace sealing rings.

Check oil level (oil temperature must be between 35 and 45 °C):

Open oil filler plug.

Slacken oil drain plug (1).

Tightening torque TORQUE SPECIFICATIONS .

Start engine and run at idle speed.

Unscrew oil drain plug.

Check whether ATF emerges at oil drain plug (1).

If not, pour in ATF up to oil filler plug.

Top up automatic transmission fluid until it overflows at oil drain plug.

Actuate footbrake and at idle shift through all gears "P" to "D" twice for more than 2 seconds.

Move switch to "P" position.

Check oil level again.

Seal screws when the oil emerges slightly from the drain plug.

Tightening torque TORQUE SPECIFICATIONS .