WM 4000IN Overview Of Cayenne Running Gear With Steel Springs (Except Cayenne GTS Tip "PORSCHE Design Edition 3"): Information: Brakes
WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
Hydraulic dual-circuit brake system with diagonal brake circuit division. Vacuum brake booster, internally ventilated brake discs with six-piston AI monobloc brake calipers at front axle and four-piston AI monobloc brake calipers at rear axle.
Standard PSM with ABS, ASR (TC+MSR), ABD, lock control (lengthways)
Parking brake (foot-operated parking brake): drum brake acting mechanically on both rear wheels.