Automatic Transmission Fluid: Inspection

NOTE: The level of ATF varies with fluid temperature. Pay attention to the ATF temperature when checking ATF level.

Raise the ATF temperature by driving a distance of 5 to 10 km (3 to 6 miles). Otherwise, idle the engine to raise ATF temperature to 70 - 80°C (158 - 176°F) on Subaru Select Monitor. < Ref. to READ CURRENT DATA , OPERATION, Subaru Select Monitor. >
Park the vehicle on a level surface.
After selecting all positions (P, R, N, D), set the select lever in "P" range. Idle the engine for 1 or 2 minutes, and measure the ATF level.

Fig 1: Identifying ATF Temperature Ranges
Courtesy of SUBARU OF AMERICA, INC.
Make sure that the ATF level is between upper and lower marks of the HOT side.
If the ATF level is below the lower mark, add recommended ATF until the fluid level is between upper and lower marks.
CAUTION:
- Be careful not to exceed the upper level.
- Be wary of the ATF level when filling. If the ATF is filled to the upper level while the transmission is cold, it is in an overfilled condition and the oil will overflow.
Raise the ATF temperature by driving a distance of 5 to 10 km (3 to 6 miles). Otherwise, idle the engine to raise ATF temperature to 70 - 80°C (158 - 176°F) on Subaru Select Monitor. < Ref. to READ CURRENT DATA , OPERATION, Subaru Select Monitor. >
Check the ATF for leaks.
Visually check for leaks in the transmission. If there are leaks, replace the gasket, oil seal, plug or other parts.