Section 18 (Brake System): General Description: Specification
WARNING: This page is about a different car, the 2015 Subaru XV Crosstrek and 2015 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.
| Front disc brake | Size | 15-inch type | 16-inch type | |
| Type | Disc (floating type, ventilated) | |||
| Effective disc diameter | mm (in) | 228 (8.98) | 244 (9.61) | |
| Disc thickness x Diameter | mm (in) | 24 x 277 (0.94 x 10.91) | 24 x 294 (0.94 x 11.57) | |
| Effective cylinder diameter | mm (in) | 42.8 (1.685) x 2 | 42.8 (1.685) x 2 | |
| Pad dimensions (Length x Width x Thickness) | mm (in) | 117.8 x 50.5 x 11.0 (4.638 x 1.988 x 0.433) | 117.8 x 50.5 x 11.0 *4 (4.638 x 1.988 x 0.433) | |
| Clearance adjustment | Automatic adjustment | |||
| Rear disc brake | Size | 15-inch type | ||
| Type | Disc (floating type, solid) | |||
| Effective disc diameter | mm (in) | 238 (9.37) | ||
| Disc thickness x Diameter | mm (in) | 10 x 274 (0.39 x 10.79) | ||
| Effective cylinder diameter | mm (in) | 38.1 (1.500) | ||
| Pad dimensions (Length x Width x Thickness) | mm (in) | 92.0 x 33.0 x 9.0 (3.622 x 1.299 x 0.354) | ||
| Clearance adjustment | Automatic adjustment | |||
| Master cylinder | Type | Tandem | ||
| Effective diameter | mm (in) | 23.8 (15/16) | ||
| Reservoir type | Sealed type | |||
| Brake fluid reservoir capacity | cm3 (cu in) | 240 (14.64) | ||
| Brake booster | Type | Vacuum suspended | ||
| Effective diameter | mm (in) | 208 + 229 (8.19 + 9.02) | ||
| Brake line | Dual circuit system | |||
| Brake fluid | FMVSS No. 116, DOT3, or DOT4
CAUTION:
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NOTE:
Refer to "PARKING BRAKE" for parking brake specifications. < Ref. to
SPECIFICATION
, General Description.>
| Item | Standard | Limit | ||
|---|---|---|---|---|
| Front brake | Pad thickness | All models | 11 (0.43) | 1.5 (0.059) |
| mm (in) | ||||
| Disc thickness | All models | 24 (0.94) | 22 (0.87) | |
| mm (in) | ||||
| Disc runout | mm (in) | - | 0.05 (0.0020) | |
| Rear brake (disc type) | Pad thickness | Solid disc | 9.0 (0.354) | 1.5 (0.059) |
| mm (in) | ||||
| Disc thickness | Solid disc | 10 (0.39) | 8.5 (0.335) | |
| mm (in) | ||||
| Disc runout | mm (in) | - | 0.05 (0.0020) | |
| Parking brake | Inside diameter | mm (in) | 170 (6.69) | 171 (6.73) |
| Lining thickness | mm (in) | 3.5 (0.14) | 1.5 (0.059) | |
| Brake pedal force N (kgf, lbf) | Fluid pressure kPa (kgf/cm2 , psi) | ||
|---|---|---|---|
| Brake booster | Brake fluid pressure with engine stopped | 147 (15, 33) | 553 (5, 77) |
| 294 (30, 66) | 1551 (16, 225) | ||
| Brake fluid pressure with engine running and vacuum pressure at 66.7 kPa (500 mmHg, 19.69 inHg) | 147 (15, 33) | 6177 (63, 896) | |
| 294 (30, 66) | 11273 (115, 1635) | ||
| Brake pedal | Free play | mm (in) | 0.5 - 2 (0.020 - 0.079) [When pulling the brake pedal upward with a force of less than 10 N (1 kgf, 2 lbf)] |