Brake booster
The brake booster uses engine manifold vacuum to assist braking force. Do not turn off the engine while driving because that will turn off the brake booster, resulting in poor braking power.
The brakes will continue to work even when the brake booster completely stops functioning. If this happens, however, you will have to depress the pedal much harder than normal and the braking distance will increase.
See also:
Rear window wiper blade assembly (Outback)
1. Raise the wiper arm off the rear window.
2. Turn the wiper blade assembly counterclockwise.
3. Pull the wiper blade assembly toward you to remove it from the wiper arm. ...
Fuel
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To install the cover housing
1. Shorten the bar.
2. Insert the projections located on the both ends of the sleeve into the recesses of the retainers. ...