2013 Subaru Impreza Owner's Manual - Page 387

Maintenance and service 11-17 Alcohol contained in the clutch fluid may damage them. . Be careful not to spill clutch fluid when adding it. If clutch fluid touches the exhaust pipe, it may cause a bad smell, smoke, and/or a fire. If clutch fluid gets on the exhaust pipe, be sure to wipe it off. . The fluid level for the clutch system must be checked at the inboard side of the reservoir. It cannot be checked at the outboard side of the reservoir. Check the fluid level monthly. Check the fluid level on the outside of the reservoir. Because this reservoir is used for both the brake and clutch systems and has chambers for each system, be sure to check the fluid level for the clutch system at the inboard side of the reservoir (shaded area in the illustration). If the fluid level is below "MIN", add the recommended clutch fluid to "MAX". Use only clutch fluid from a sealed container. Brake booster If the brake booster does not operate as described in the following, have it checked by your SUBARU dealer. 1. With the engine off, depress the brake pedal several times, applying the same pedal force each time. The distance the pedal travels should not vary. 2. With the brake pedal depressed, start the engine. The pedal should move slightly down to the floor. 3. With the brake pedal depressed, stop the engine and keep the pedal depressed for 30 seconds. The pedal height should not change. 4. Start the engine again and run for approximately one minute then turn it off. Depress the brake pedal several times to check the brake booster. The brake booster operates properly if the pedal stroke decreases with each depression. & Recommended clutch fluid Refer to "Fluids" F12-7. CAUTION Never use different brands of clutch fluid together. Also, avoid mixing DOT 3 and DOT 4 brake fluids even if they are the same brand. NOTE For vehicles equipped with the brake assist system, when you depress the brake pedal strongly or suddenly, the following phenomena occur. However, even though these occur, they do not indicate any malfunctions, and the brake assist system is operating prop- CONTINUED - 1) 2) A) "MAX" level line "MIN" level line The clutch fluid level must be checked in this area.