By Core Brake Parts Tech Team — Circleville, OH warehouse
A brake job on a 2006-2015 Porsche Cayman is a pads-first job: the fixed multi-piston calipers let you swap pads without unbolting the caliper, and the main torque value you must get right is the wheel bolt. For the 987 Cayman from model year 2009, Porsche specifies 130 Nm (96 ft-lb) for silver wheel bolts up to model year 2011 and 160 Nm (118 ft-lb) for silver bolts from model year 2012 and for all black wheel bolts. Caliper bolts and the rest of the hardware go to the values in the factory workshop manual for your exact car.
How the Cayman brake system is laid out
Every Cayman in this range uses four-wheel disc brakes with fixed calipers, vented rotors at both ends, and electrical pad wear sensors. The 987 generation runs through 2012; the 981 generation covers the later cars in this range. Brake sizing varies by model (Cayman, Cayman S, Cayman R) and by whether the car has the optional ceramic composite brakes (PCCB), so the first job is identifying what is actually on your car.
For reference, Brembo's catalogue lists these rotor sizes for the 987 Cayman S 3.4:
| Position | Diameter | New thickness | Minimum thickness | Type |
|---|---|---|---|---|
| Front | 318 mm | 28 mm | 26 mm | Vented |
| Rear | 299 mm | 24 mm | 22 mm | Vented |
Base Cayman, Cayman R and 981 cars use different sizes, so read the minimum thickness stamped on your own rotor rather than assuming. If a rotor is at or below that number, it gets replaced, not resurfaced. Brembo also notes that its standard pads and rotors are not for carbon-ceramic discs: if your car has PCCB rotors, treat it as a separate system with its own parts and rules.
Tools you need for a Cayman brake job
- A torque wrench that reaches the wheel bolt value. At 160 Nm (118 ft-lb) on later cars, a small 3/8-inch click wrench will not cover it. Use a 1/2-inch wrench rated past that figure and make sure it is in calibration.
- A low-range torque wrench for small fasteners. If your car has Porsche's 5 mm wheel spacers, the countersunk M6 screws that hold the spacer to the hub together with the rotor are specified at only 10 Nm (7.5 ft-lb), far below what a wheel-bolt wrench can measure accurately.
- The correct wheel-bolt socket and a wheel-hanging pin. Cayman wheels use bolts, not studs, so a guide pin threaded into one hole makes it much easier to hang the wheel without scratching the hub face or the wheel.
- A pin punch and small hammer to drive out the pad retaining pins on the fixed calipers, plus a piston spreader or flat plastic tool to push the pistons back evenly.
- Fluid tools: a syringe to pull fluid down in the reservoir before pushing pistons back, and a pressure bleeder or a helper and clear hose if you are flushing the fluid.
- Brake cleaner, a wire brush and lint-free rags to clean the pad abutments, the hub face and the rotor hat before reassembly.
- A low-profile jack, pads suited to the Cayman's lift points, and jack stands. Never work under a car held up only by a jack.
Torque specs: what Porsche publishes and what to look up
Porsche's technical bulletin for the 987 Cayman, Cayman S and Cayman R (model year 2009 onward) gives the wheel mounting values directly:
| Fastener | Tightening torque | Notes |
|---|---|---|
| Silver wheel bolts, up to model year 2011 | 130 Nm (96 ft-lb) | Original-length bolts |
| Silver wheel bolts, from model year 2012 | 160 Nm (118 ft-lb) | Check bolt color before torquing |
| Black wheel bolts | 160 Nm (118 ft-lb) | Per the same bulletin |
| Longer wheel bolts used with the 5 mm spacer | 130 Nm (96 ft-lb) | Marked GT or red; approx. 50 mm long |
| Spacer countersunk screws (M6x16) | 10 Nm (7.5 ft-lb) | Only on cars fitted with the spacer |
The bulletin also says the spacer must stay on the car when you fit the spare wheel, and that the original bolts (about 45 mm long) must go back in if the spacer is removed. Mixing bolt lengths is a real risk after a brake job if someone has been swapping wheels. For 2006-2008 cars and the 981 generation, confirm the wheel bolt value in your owner's manual before torquing.
Caliper mounting bolts are the fastener people most often guess at. We could not confirm the factory value from a source we trust, so we are not printing one here. Torque the caliper bolts, bleed screws and brake line fittings to the values in the Porsche workshop manual for your car's year and brake package. Many independent shops also replace caliper bolts rather than reuse them, because the threads are in the aluminium wheel carrier and a stripped thread there is an expensive repair. Clean the threads and start every bolt by hand.
Pads, wear sensors and what to replace together
On these fixed calipers the pads come out once you remove the retaining pins and the spreader spring. Before you push the pistons back, take some fluid out of the reservoir so it does not overflow. Push each piston back slowly and evenly; a cocked piston can damage the seal.
The Cayman uses electrical wear sensors. Brembo lists separate front and rear wear indicators for this car, in different lengths for standard and ceramic brakes, so buy the one that matches your axle and brake type. If the brake wear warning came on, the sensor has been ground through and must be replaced. Many owners replace the sensors at every pad change because they cost little compared with a second teardown.
Replace together:
- Pads by axle, both sides at once. Never one wheel only.
- Rotors when they are at or near minimum thickness, have a lip you can catch a fingernail on, or show heat cracks. New pads on worn rotors wear faster and can cause vibration.
- Wear sensors whenever they have triggered, and ideally every time.
- Retaining pins and spreader springs if they are corroded or bent. See our brake hardware kits.
For pads that fit this car, we carry the Hawk HPS 5.0 rear brake pad set for the 2006-2014 Cayman, a street-performance compound, and the Hawk ceramic rear brake pads for the 2014-2015 Cayman for low dust and quiet daily driving. The Hawk DTC-70 front race pad set for the 2014 Cayman is a track compound, not a street pad. Browse more brake pads and brake rotors by vehicle.
Brake fluid: type and timing
Service schedules for the 987.2 Cayman list a brake fluid flush every two years regardless of mileage, using DOT 4, with low-viscosity DOT 4 the usual recommendation. Brake fluid absorbs moisture over time, which lowers its boiling point, and a Cayman driven hard heats its fluid more than most cars. A pad change is the natural time to flush it. A common bleed order starts at the right rear, then left rear, right front and left front, and a full flush takes about a litre of fresh fluid. If the car sees track use, flush more often.
How hard is the job?
A pad change on a Cayman is a moderate DIY job for someone who has done brakes before. The fixed calipers actually make pads simpler than on many cars, because the caliper stays bolted on. Rotor replacement adds caliper removal and hub-face cleaning, and it is where the fasteners without a published value come in, so have the workshop manual numbers in hand first. If the car has ceramic brakes, the parts are far more expensive and easy to damage, and many owners leave PCCB work to a specialist.
After the job, pump the pedal until it is firm before moving the car, re-check wheel bolt torque, and bed in the new pads with a series of moderate stops from speed, without holding the car at a full stop while the brakes are hot.
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Shop Brake Pads & Kits →Frequently Asked Questions
What is the wheel bolt torque on a Porsche Cayman?
For the 987 Cayman from model year 2009, Porsche lists 130 Nm (96 ft-lb) for silver wheel bolts up to model year 2011, and 160 Nm (118 ft-lb) for silver bolts from model year 2012 and for black bolts. For other years, confirm the value in your owner's manual.
Do I have to remove the caliper to change Cayman brake pads?
No. The fixed calipers release the pads once the retaining pins and spreader spring are out. You only remove the caliper to replace rotors.
Should I replace the brake wear sensors with new pads?
Yes if the warning light came on, because the sensor is worn through. Even if it did not, many owners fit new sensors with every pad set. Match the sensor to the axle and to standard or ceramic brakes.
How often should Cayman brake fluid be changed?
Every two years regardless of mileage, using DOT 4 fluid, and more often if the car sees track days.
Can I use standard pads on ceramic (PCCB) brakes?
No. Standard pads and rotors are not for carbon-ceramic discs. Ceramic-brake cars need parts made for PCCB.
Can I resurface Cayman rotors?
Only if they will stay above the minimum thickness stamped on the rotor after machining. On the Cayman S front rotor, Brembo lists only 2 mm between new and minimum thickness, so replacement is usually the right call.
Sources
- Porsche Cars North America Technical Bulletin 65/21, Cayman (987) wheels and spacers (via NHTSA) - wheel bolt torques by year and color, spacer screw torque, bolt lengths
- Brembo catalogue, Porsche Cayman (987) S 3.4 - rotor diameters, thickness and minimum thickness, wear indicators, not for carbon-ceramic discs
- 987.2 Boxster/Cayman maintenance schedule - two-year DOT 4 brake fluid flush, bleed order, fluid quantity
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