Brake Pedal: Inspection

WARNING: This page is about a different car, the 2015 Subaru Outback and 2015 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.

Move the pad - brake pedal in a horizontal direction with a force of approx. 10 N (1 kgf, 2 lbf), and check that the pedal deflection is in the range of specifications.
CAUTION: If excessive deflection is noted, replace with a new bushing.

Deflection of brake pedal:

Wear limit: 5.0 mm (0.197 in) or less

Fig 1: Identifying Brake Pedal Deflection (CVT And MT Models)
Courtesy of SUBARU OF AMERICA, INC.
Check the position of the pedal pad.
Pedal height L:

140 - 150 mm (5.51 - 5.91 in)

Brake pedal free play A:

0.5 - 2.7 mm (0.020 - 0.11 in) [When pulling the brake pedal upward with a force of less than 10 N (1 kgf, 2 lbf).]

Fig 2: Identifying Pedal Height
Courtesy of SUBARU OF AMERICA, INC.
If it is not within the specification, loosen the lock nuts of vacuum booster operating rod, and rotate the rod to adjust the pedal height L within the specification.
Tighten the lock nut.
Tightening torque:

Operating lock nut: 22 N.m (2.2 kgf-m, 16.2 ft-lb)

NOTE: Check the brake pedal height. When adjusting, also adjust the stop light switch.