Technical Values: Overview
WARNING: This page is about a different car, the 2014 Porsche Cayenne, 2013 Porsche Cayenne, 2012 Porsche Cayenne, and 2011 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
TIGHTENING TORQUE SPECIFICATIONS
| Location | Des... | Type | Basic val... | Toleranc... | Toleranc... |
|---|---|---|---|---|---|
| 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 brake-circuit division. Vacuum brake booster, internally ventilated brake discs with six-piston aluminum monobloc fixed-calliper brake at front axle and fourpiston aluminum monobloc fixed-calliper brake at rear axle. | ||||
| PSM | Porsche Stability Management (PSM) as standard with the functions Antilock Brake System (ABS), Anti-Slip Regulation (ASR), Engine Drag Torque Control (EDTC), Automatic Brake Differentia l (ABD), brake force boosting, brake system pre-filling. | ||||
| Tandem brake booster Ø (vacuum) | 9/10 inches | ||||
| Boost ratio | 8/7 | ||||
| Brake master cylinder Ø | 28.57 mm | ||||
| Brake-circuit division | 24/12 mm | ||||
| Brake disc Ø, front | 360 mm | ||||
| Brake disc Ø, rear | 330 mm | ||||
| Brake disc thickness, front | 36 mm | ||||
| Brake disc thickness, rear | 28 mm | ||||
| Thickness tolerance of brake disc, max. | 0.01 mm | ||||
| Effective brake disc Ø, front | 294.4 mm | ||||
| Effective brake disc Ø, rear | 274.6 mm | ||||
| Piston Ø in front brake calliper | 6 x 36 mm | ||||
| Piston Ø in rear brake calliper | 4 x 32 mm | ||||
| Brake pad area, front | 480 cm2 | ||||
| Brake pad area, rear | 200 cm2 | ||||
| Total brake pad area | 680 cm2 | ||||
| Service brake (foot brake) with PCCB brake discs 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 fourpiston aluminum monobloc fixed-calliper brake on rear axle. The brake callipers are painted yellow for visual differentiation. | ||||
| PSM | Porsche Stability Management (PSM) as standard with the functions Antilock Brake System (ABS), Anti-Slip Regulation (ASR), Engine Drag Torque Control (EDTC), Automatic Brake Differentia l (ABD), brake force boosting, brake system pre-filling. | ||||
| Tandem brake booster Ø (vacuum) | 9/10 Zoll | ||||
| Boost ratio | 8 | ||||
| Brake master cylinder Ø | 28.57 mm | ||||
| Brake-circuit division | 24/12 mm | ||||
| Brake disc Ø, front | 420 mm | ||||
| Brake disc Ø, rear | 370 mm | ||||
| Brake disc thickness, front | 40 mm | ||||
| Brake disc thickness, rear | 30 mm | ||||
| Thickness tolerance of brake disc, max. | 0.01 mm | ||||
| Effective brake disc Ø, front | 333 mm | ||||
| Effective brake disc Ø, rear | 314 mm | ||||
| Piston Ø in brake calliper, front | 6 x 36 mm | ||||
| Piston Ø in brake calliper, rear | 4 x 32 mm | ||||
| Brake pad area, front | 480 cm2 | ||||
| Brake pad area, rear | 216 cm2 | ||||
| Total brake pad area | 696 cm2 | ||||
| Pad thickness, front | Wear limit 2 mm | approx. 9.7 mm | |||
| Pad thickness, rear | Wear limit 2 mm | approx. 8.8 mm | |||
| Brake disc thickness, front | New | 36 mm | |||
| Brake disc thickness, rear | New | 28 mm | |||
| 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 | |||
| 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! | 27.6 mm | |||
| Brake disc wear dimension, front | 34 mm | ||||
| Brake disc wear dimension, rear | 26 mm | ||||
| Peak-to-valley surface roughness of brake disc after machining, max. | 0.006 mm | ||||
| Thickness tolerance of brake discs after machining, max. | 0.02 mm | ||||
| Lateral runout of brake disc, max. | 0.03 mm | ||||
| Lateral runout of wheel hub | max. 0.02 mm | ||||
| Lateral runout of brake disc when installed, max. | 0.06 mm | ||||
| Pushrod play | Not adjustable Parking brake (foot-operated parking brake) Drum brake acting mechanically on both rear wheels | ||||
| Parking-brake drum Ø | Wear limit 211 mm | 210 mm | |||
| Brake shoe width | 30 mm | ||||
| Brake pad thickness | Wear limit 1 mm | 3 mm | |||
| Pad thickness, front | Wear limit 2 mm | approx. 8.6 mm | |||
| Pad thickness, rear | Wear limit 2 mm | approx. 8.9 mm | |||
| Brake disc thickness, front | New | 40 mm | + 0.1 mm | - 0.1 mm | |
| Brake disc thickness, rear | New | 30 mm | + 0.1 mm | - 0.1 mm | |
| Brake disc wear limit, front | Minimum brake disc thickness (wear limit) is stamped on the brake disc hub. Example: Min. Th. 37.7 mm | (Read value on brake disc hub) XX.X mm | |||
| Brake disc wear limit, rear | Minimum brake disc thickness (wear limit) is stamped on the brake disc hub. Example: Min. Th. 29.7 mm | (Read value on brake disc hub) XX.X mm | |||
| Peak-to-valley surface roughness of brake disc | New | 0.006 mm | |||
| 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. | |||
| Lateral runout of brake disc, max. | 0.03 mm | ||||
| Lateral runout of wheel hub, max. | 0.02 mm | ||||
| Lateral runout of brake disc when installed, max. | 0.07 mm | ||||
| Pushrod play | Not adjustable | ||||
| Parking brake (foot-operated parking brake) | Drum brake acting mechanically on both rear wheels | ||||
| Parking-brake drum Ø | Wear limit 211 mm | 210 mm | |||
| Brake shoe width | 30 mm | ||||
| Brake pad thickness | Wear limit 1 mm | 3 mm |