| Service brake (footbrake) 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 six-piston aluminum monobloc fixed-calliper brake on front axle and four-piston aluminum 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 Zoll |
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| Boost ratio |
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7.0 |
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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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24/12 mm |
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| Brake disc Ø, front |
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360 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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36 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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294.4 mm |
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| Effective brake disc Ø, rear |
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274.6 mm |
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| Piston Ø in brake calliper, front |
2 x 36 mm + 2 x 36 mm + 2 x 36 mm |
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| Piston Ø in brake calliper, rear |
2 x 32 mm + 2 x 32 mm |
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| Brake pad area, front |
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480 cm2 |
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| Brake pad area, rear |
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252 cm2 |
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| Total brake pad area |
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732 cm2 |
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| Service brake (footbrake) with PCCB brake discs 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 aluminum monobloc fixed-calliper brake on front axle and four-piston aluminum monobloc fixed-calliper brake on rear axle. The brake callipers are painted yellow for visual differentiation. |
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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 Zoll |
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| Boost ratio |
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7.0 |
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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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24/12 mm |
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| Brake disc Ø, front |
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390 mm |
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| Brake disc Ø, rear |
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350 mm |
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| Brake disc thickness, front |
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38 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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323.4 mm |
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| Effective brake disc Ø, rear |
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294 mm |
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| Piston Ø in brake calliper, front |
2 x 36 mm + 2 x 36 mm + 2 x 36 mm |
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| Piston Ø in brake calliper, rear |
2 x 32 mm + 2 x 32 mm |
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| Brake pad area, front |
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480 cm2 |
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| Brake pad area, rear |
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252 cm2 |
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| Total brake pad area |
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732 cm2 |
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| Pad thickness, front |
Wear limit 2 mm |
approx. 9.6 mm |
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| Pad thickness, rear |
Wear limit 2 mm |
approx. 9.5 mm |
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| Brake disc thickness, front |
New |
36 mm |
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| Brake disc thickness, rear |
New |
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! |
35.6 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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34 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 electro-mechanically on both rear wheels |
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| Parking-brake drum diameter |
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180 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 |
3 mm |
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| Pad thickness, front |
Wear limit 2 mm |
approx. 10.0 mm |
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| Pad thickness, rear |
Wear limit 2 mm |
approx. 10.5 mm |
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| Brake disc thickness, front |
New |
38 mm |
+0.1 mm |
-0.1 mm |
| Brake disc thickness, rear |
New |
28 mm |
+0.1 mm |
-0.1 mm |
| Brake disc wear dimension, front |
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37.7 mm |
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| Brake disc wear dimension, rear |
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27.7 mm |
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| Brake disc wear limit, front |
Minimum brake disc thickness (wear limit) is stamped on the brake disc hub. Example: Min. Th. 37.7 mm |
mm (Read value on brake disc hub) XX.X |
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| Brake disc wear limit, rear |
Minimum brake disc thickness (wear limit) is stamped on the brake disc hub. Example: Min. Th. 29.7 mm |
mm (Read value on brake disc hub) XX.X |
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| Peak-to-valley surface roughness of brake disc |
New |
0.006 mm |
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| Wear limit: Surface changes in front and rear brake discs |
Wear limit: Connected surface fracture > 1 cm2
and/or surface roughness of brake disc > 80 micrometer. Replace PCCB brake discs on each axle. |
Values and procedure for: 46 51 02 Checking front PCCB brake discs/46 54 02 Checking rear PCCB brake discs. |
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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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0.07 mm |
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| Pushrod play |
Not adjustable |
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| Parking brake (foot-operated parking brake) |
Drum brake acting electro-mechanically on both rear wheels |
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| Parking-brake drum diameter |
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180 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 |
3 mm |
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