Brush And Brush Holder

WARNING: This page is about a different variant/trim than selected.

Measure the length of the brush. Replace if it exceeds service limits or there is abnormal wear or cracks.
Brush length:

Standard

12.3 mm (0.484 in)

Limit

7.0 mm (0.276 in)

Fig 1: Identifying Service Limit Line And Brush
Courtesy of SUBARU OF AMERICA, INC.
Check that the brush moves smoothly in the brush holder.
Measure the brush spring force with a spring scale. Replace the brush holder if below the service limit.
Brush spring force:

Standard

15.9 - 19.5 N (1.62 - 1.99 kgf, 3.57 - 4.38 lbf) (When new)

Limit

2.5 N (0.25 kgf, 0.56 lbf)