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. Measure the ATF level with engine idling for one or two minutes.

Fig 1: Measuring ATF Level
Courtesy of SUBARU OF AMERICA, INC.
Make sure that ATF level is between the upper level and lower level at HOT side.
If the ATF level is below the lower level, replenish recommended ATF to bring the fluid level between the upper level and lower level.
CAUTION:
- Use care not to exceed the upper limit level.
- Be sure that the replenishment of ATF to the upper level with the transmission cold will cause overfilling of ATF and result in a transmission failure.
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.
Make visual inspection for leaks from the inside of transmission. If there are leaks, repair or replace the gasket, oil seals, plugs or other parts.