Technical Values For Brake System (R4)
WARNING: This page is about a different variant/trim than selected.
Equipment:
- Service brake (foot brake) with grey cast-iron brake discs (standard brake) with PSM (Porsche Stability Management) as standard
- Hydraulic dual-circuit brake system with brake circuit division per axle.
- Vacuum brake booster, internally ventilated brake discs with four-piston aluminium monobloc fixed-calliper brake on front axle and one-piston floating-calliper brake with integrated parking brake on rear axle.
Porsche Stability Management (PSM):
- Porsche Stability Management (PSM) as standard with functions ABS, ASR (Traction Control TC+, engine drag torque control MSR, ABD, PTM lock control (longitudinal))
- Optional: Levelling system, infinite shock absorber adjustment PASM, electronically regulated limited-slip rear differential PTV+
Technical values:
| Location | Description | Type | Basic value | Tolerance |
|---|---|---|---|---|
| Brake discs Ø front 17 inch | New | Control value | 345 mm | |
| Brake discs Ø rear 17 inch | New | Control value | 330 mm | |
| Front brake disc thickness | New | Control value | 30 mm | |
| Rear brake disc thickness | New | Control value | 22 mm | |
| Thickness tolerance of brake disc, maximum | Control value | 0.01 mm | ||
| Effective brake disc Ø front | Dimension | 285 mm | ||
| Effective brake disc Ø rear | Dimension | 288.1 mm | ||
| Brake pad area per wheel, front | Pad quality, ECE | Area | 75 cm2 | |
| Brake pad area per wheel, front | Pad quality, NAR | Area | 76.1 cm2 | |
| Brake pad area per wheel, rear | Area | 44, 7 cm2 |