Subaru Impreza 2004 - Manual (Page 111)

PM-35
PERIODIC MAINTENANCE SERVICES
Disc Brake Pads and Discs
21.Disc Brake Pads and Discs
A: INSPECTION
1. DISC BRAKE PAD AND DISC
1) Jack-up the vehicle and support with rigid racks.
Then remove the wheels.
2) Visually check the pad thickness through inspec-
tion hole of disc brake assembly. Replace the pad if
necessary.
NOTE:
When replacing a pad, always replace the pads for
both the right and left wheels at the same time. Also
replace the pad clips if they are twisted or worn.
• Front
• Rear
3) Check the disc rotor, and correct or replace if it is
damaged or worn.
• Front
• Rear
4) Remove the caliper body. <Ref. to BR-31, Front
Disc Brake Assembly.>, <Ref. to BR-42, Rear Disc
Brake Assembly.>
5) Tighten the wheel nuts to secure disk rotor.
6) Set a dial gauge at a point less than 10 mm (0.39
in) from outer periphery of rotor, and then measure
the disk rotor runout.
Disc rotor runout limit:
Front: 0.075 mm (0.0030 in)
Rear: 0.070 mm (0.0028 in)
(A) Inspection hole
Pad thicknessmm (in)
Standard
14, 15 inch 11 (0.43)
16 inch 10 (0.39)
17 inch 9.2 (0.36)
Service limit
14, 15 inch 1.5 (0.059)
16 inch 1.5 (0.059)
17 inch 1.2 (0.047)
Pad thicknessmm (in)
Standard
14 inch 9 (0.35)
15 inch 11.5 (0.45)
17 inch 9 (0.35)
Service limit
14 inch 1.5 (0.059)
15 inch 1.5 (0.059)
17 inch 1.2 (0.047)
PM-00049
(A)
(A) Thickness of pad
(B) Back metal
(C) Lining
Disc rotor thicknessmm (in)
Standard
14, 15, 16 inch 24 (0.94)
17 inch 30 (1.18)
Service limit
14, 15, 16 inch 22 (0.87)
17 inch 28 (1.10)
Disc rotor thicknessmm (in)
Standard
14 inch 10 (0.39)
15 inch 18 (0.71)
17 inch 20 (0.79)
Service limit
14 inch 8.5 (0.34)
15 inch 16 (0.63)
17 inch 18 (0.71)
PM-00140
(A)
(C)
(B)
PM-00051