| Operating brake (foot brake) with grey cast iron brake discs (standard brake) with PSM (Porsche Stability Management) as standard |
Hydraulic dual-circuit brake system with diagonal brake-circuit division. Vacuum brake booster, internally ventilated brake discs with six-piston aluminium monobloc fixed-calliper brake on front axle and four-piston aluminium monobloc fixed-calliper brake on rear axle. |
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| PSM |
Porsche Stability Management (PSM) as standard with functions ABS, ASR (Traction Control TC, engine drag torque control MSR, ABD, lock control (longitudinal)). Optional: level adjustment, infinite shock absorber adjustment, rear axle lock. |
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| Tandem brake booster Ø (vacuum) |
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9/10 inches |
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| Boost ratio |
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7 |
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| Brake master cylinder Ø |
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26.99 mm |
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| Brake-circuit division |
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18/18 mm |
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| Brake disc Ø, front |
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330 mm |
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| Brake disc Ø, rear |
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330 mm |
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| Brake disc thickness, front |
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32 mm |
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| Brake disc thickness, rear |
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28 mm |
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| Thickness tolerance of brake disc, max. |
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0.01 mm |
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| Effective brake disc Ø, front |
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265.6 mm |
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| Effective brake disc Ø, rear |
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280.4 mm |
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| Piston Ø in brake calliper, front |
2 x 34 mm + 2 x 36 mm + 2 x 38 mm |
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| Piston Ø in brake calliper, rear |
2 x 28 mm +2 x 30 mm |
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| Brake pad area, front |
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384 cm2 |
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| Brake pad area, rear |
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188 cm2 |
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| Total brake pad area |
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572 cm2 |
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| Pad thickness, front |
Wear limit 2 |
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mm approx. 10.5 mm |
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| Pad thickness, rear |
Wear limit 2 mm |
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approx. 11.5 mm |
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| Brake disc thickness, front |
New |
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32 mm |
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| Brake disc thickness, rear |
New |
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28 mm |
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| Brake disc minimum thickness after machining, front |
Only 'as new' brake discs may be reworked! Only rework the brake disc symmetrically, evenly from both sides! |
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31.6 mm |
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| Brake disc minimum thickness after machining, rear |
Only 'as new' brake discs may be reworked! Only rework the brake disc symmetrically, evenly from both sides! |
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27.6 mm |
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| Brake disc wear dimension, front |
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30 mm |
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| Brake disc wear dimension, rear |
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26 mm |
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| Peak-to-valley surface roughness of brake disc after machining, max. |
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0.006 mm |
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| Thickness tolerance of brake discs after machining, max. |
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0.02 mm |
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| Lateral runout of brake disc, max. |
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0.03 mm |
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| Lateral runout of wheel hub, max. |
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0.02 mm |
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| Lateral runout of brake disc when installed, max. |
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0.06 mm |
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| Pushrod play |
Not adjustable |
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| Parking brake (foot-operated parking brake) |
Drum brake acting mechanically on both rear wheels |
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| Parking-brake drum Ø |
Wear limit 211 mm |
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210 mm |
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| Brake shoe width |
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30 mm |
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| Brake pad thickness |
Wear limit 1 mm |
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3 mm |
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