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02-05-2009, 08:37 PM
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Site Donor
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Join Date: Feb 2006
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Original brake pad life
Just thought I'd pass this quality tidbit on...
Around the the 2nd week of of January my brake pad wear light came on for the first time. I had over 25,500 miles on the odometer (25,905 as of this post) and this was nearly 2 weeks shy of being exactly 3 years on my original set of pads (and rotors)! This is after driving and braking with a " spirited" attitude for that entire time, 3 autocrosses and 2 track days. Needless to say, I am greatly impressed. Btw, I am still driving with the pads and the wear light coming on, but I am driving as much like a conservative granny (  ) as I can until I can replace them next month. Fyi, it's only the fronts wearing out, the rear pads still have a few thousand more miles left.
I'm curious, is this normal for Porsche pads or is it my driving style or not much track time or the mid engine physics or some combo of them? Regardless, all I can say is " wow..." 
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02-05-2009, 10:29 PM
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Site Donor
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Re: Original brake pad life
Everyone drives/brakes differently, but what you describe is pretty normal. The sensor light comes on with about 2mm of pad left - about 20% - so if you really are going to take care of it in a month, there's no reason to worry - drive normally.
brad
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22-year PCA Member
PCA DE Instructor
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02-05-2009, 10:32 PM
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Crusin worlds most isolated city
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Re: Original brake pad life
Hey same here.
I just replaced my original pads and rotors prior at 40,000kms (25,000miles).
The service light had not come on yet, although it was very close. Ive done about 10 events and dont baby the car.
She's a beauty!
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2010 Cayman S, special build.
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02-06-2009, 08:48 AM
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Porsche Activist
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Join Date: Jun 2007
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Re: Original brake pad life
Mine are about done with 11k miles and 1 track day. I've got Pagid Yellows waiting to go on this weekend.
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Nov 16, 2007 build:
'08 CS Midnight blue metallic--6 spd
Black sport seats, Delete model designation
Fire extinguisher,Floor mats, Sport steering wheel
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02-06-2009, 06:16 PM
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Porsche Specialist
500 post club
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Join Date: Jan 2006
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Re: Original brake pad life
I'm at 60,000 km's and my light hasn't come on yet.
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02-06-2009, 08:33 PM
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Porsche Chatter
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Join Date: Apr 2007
Location: ca
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Re: Original brake pad life
My pads are just about done as well (46K mi) but for some reason my rear pads have worn out faster than my front??? 
Wonder if this is normal?
Did anyone else experienced this on a Cayman S?
I have about 30% left in the front pads and 10% left in the rear...
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02-06-2009, 11:21 PM
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Site Donor
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Join Date: Mar 2007
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Re: Original brake pad life
Original Pads died within 12k km with 2 trackdays 70+ laps x 5km.
Rotors died in 15K km 4 trackdays 140 laps x 5km
now for track only using Pagid orange. Stock pads cannot take the track.
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02-07-2009, 10:32 AM
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Porsche Prophet
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Join Date: Aug 2007
Location: WALES
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Re: Original brake pad life
Originally Posted by peffyd
My pads are just about done as well (46K mi) but for some reason my rear pads have worn out faster than my front???
Wonder if this is normal?
Did anyone else experienced this on a Cayman S?
I have about 30% left in the front pads and 10% left in the rear... |
I've never known a car wear the rears before the fronts.
Well there was one... but that had been clocked: mileage turned back.
Bought it from a BMW main dealer with 4k miles on it, got to 12k and the rear pads needed changing.
That aside, did you have the car from new?
If not, there's a possibilty that the previous owner has changed the fronts once already. Also the PSM works by braking each wheel as necessary so if you have been "drifting" with the PSM light flashing a lot it might wear the rears out first. Unlikely though.
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PSM - Porsche Stability Management
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While it can’t overcome the laws of physics, the revolutionary Porsche Stability Management (PSM) system does lend an added degree of balance and control to the Cayman’s mid-engine driving dynamics, inspiring surefooted confidence in corners and extreme situations.
A standard feature on the Cayman and Cayman S, PSM continuously monitors steering input, road speed, yaw velocity and lateral acceleration to calculate the actual direction of travel. If the car begins to steer off line, PSM instantly intervenes with precision brake inputs on individual wheels to help bring the car back onto the driver’s intended path.
If braking alone isn’t enough to correct the vehicle’s cornering line, PSM then calls on the Cayman’s engine management system, adjusting engine output as needed to help stabilize handling. PSM can also compensate in an instant for mid-corner changes in load resulting from deceleration or braking. When Sport mode is selected with the optional Sport Chrono Package, PSM’s threshold for intervention is raised, allowing for greater driver involvement. If you prefer driving without automatic PSM assistance, the system can be set to standby at any time. In this case, it will only intervene under heavy braking, where both front wheels exceed the ABS threshold.
For all of its technical ability, PSM goes virtually unnoticed in everyday driving situations, preserving the Cayman’s natural agility. |
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02-07-2009, 11:59 AM
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Porsche Chatter
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Join Date: Oct 2008
Location: Berkshire
Posts: 27
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Re: Original brake pad life
Originally Posted by peffyd
My pads are just about done as well (46K mi) but for some reason my rear pads have worn out faster than my front???
Wonder if this is normal?
Did anyone else experienced this on a Cayman S?
I have about 30% left in the front pads and 10% left in the rear... |
Are the rear calipers sticking?
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02-07-2009, 08:57 PM
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Porsche Specialist
500 post club
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Join Date: Oct 2007
Location: DFW Texas
Posts: 519
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Re: Original brake pad life
Originally Posted by peffyd
My pads are just about done as well (46K mi) but for some reason my rear pads have worn out faster than my front???
Wonder if this is normal?
Did anyone else experienced this on a Cayman S?
I have about 30% left in the front pads and 10% left in the rear... |
How many rear tire sets have you gone through?
PSM may have caused this, but you would know that by how often it kicked in.
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PSM - Porsche Stability Management
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While it can’t overcome the laws of physics, the revolutionary Porsche Stability Management (PSM) system does lend an added degree of balance and control to the Cayman’s mid-engine driving dynamics, inspiring surefooted confidence in corners and extreme situations.
A standard feature on the Cayman and Cayman S, PSM continuously monitors steering input, road speed, yaw velocity and lateral acceleration to calculate the actual direction of travel. If the car begins to steer off line, PSM instantly intervenes with precision brake inputs on individual wheels to help bring the car back onto the driver’s intended path.
If braking alone isn’t enough to correct the vehicle’s cornering line, PSM then calls on the Cayman’s engine management system, adjusting engine output as needed to help stabilize handling. PSM can also compensate in an instant for mid-corner changes in load resulting from deceleration or braking. When Sport mode is selected with the optional Sport Chrono Package, PSM’s threshold for intervention is raised, allowing for greater driver involvement. If you prefer driving without automatic PSM assistance, the system can be set to standby at any time. In this case, it will only intervene under heavy braking, where both front wheels exceed the ABS threshold.
For all of its technical ability, PSM goes virtually unnoticed in everyday driving situations, preserving the Cayman’s natural agility. |
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02-08-2009, 02:41 AM
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Site Donor
500 post club
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Join Date: Mar 2007
Location: Singapore
Posts: 751
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Re: Original brake pad life
On my car the rear pads wear at a uniform rate with the fronts. For a mid engined car, the rear brakes get worked hard too. I agree with you normally the rears have an easy time, but the 911 and Cayman are pretty special and have more rear brake bias.
Originally Posted by blueyes
I've never known a car wear the rears before the fronts.
Well there was one... but that had been clocked: mileage turned back.
Bought it from a BMW main dealer with 4k miles on it, got to 12k and the rear pads needed changing.
That aside, did you have the car from new?
If not, there's a possibilty that the previous owner has changed the fronts once already. Also the PSM works by braking each wheel as necessary so if you have been "drifting" with the PSM light flashing a lot it might wear the rears out first. Unlikely though. |
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PSM - Porsche Stability Management
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While it can’t overcome the laws of physics, the revolutionary Porsche Stability Management (PSM) system does lend an added degree of balance and control to the Cayman’s mid-engine driving dynamics, inspiring surefooted confidence in corners and extreme situations.
A standard feature on the Cayman and Cayman S, PSM continuously monitors steering input, road speed, yaw velocity and lateral acceleration to calculate the actual direction of travel. If the car begins to steer off line, PSM instantly intervenes with precision brake inputs on individual wheels to help bring the car back onto the driver’s intended path.
If braking alone isn’t enough to correct the vehicle’s cornering line, PSM then calls on the Cayman’s engine management system, adjusting engine output as needed to help stabilize handling. PSM can also compensate in an instant for mid-corner changes in load resulting from deceleration or braking. When Sport mode is selected with the optional Sport Chrono Package, PSM’s threshold for intervention is raised, allowing for greater driver involvement. If you prefer driving without automatic PSM assistance, the system can be set to standby at any time. In this case, it will only intervene under heavy braking, where both front wheels exceed the ABS threshold.
For all of its technical ability, PSM goes virtually unnoticed in everyday driving situations, preserving the Cayman’s natural agility. |
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02-10-2009, 08:27 PM
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Insider
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Join Date: Mar 2007
Location: Texas
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Re: Original brake pad life
I changed mine at 16,ooo mi which included 270 miles of track. The sensor had not tripped yet, but were very close.
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Kenny
2006 Arctic Silver CS 6M, PASM, Sport Chrono,, short shifter, 19" wheels, Pirrelli tires, Milltek Catbback, Softronic SRP and 4.2 Flash.
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03-01-2009, 12:12 AM
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PCA Member
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Join Date: Nov 2008
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Re: Original brake pad life
I just burned through the fronts and rears in 4000 miles.
My Boxster S was new in Sept 08. The use of the car included 8 track days at Laguna and Thunderhill. I think I need to replace one rear rotor, as it was grinding metal to metal just to get home today.
The check brake wear warning came on while I was in Monterey at Laguna Seca today and the grinding started just after I left the track.
I would think that the pads should have lasted more than 4000 miles!?
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03-01-2009, 04:09 AM
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Porsche Activist
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Join Date: Aug 2008
Location: East Midlands
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Re: Original brake pad life
With 8 track days? It really depends on how you break.
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03-02-2009, 10:56 PM
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PCA Member
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Join Date: Nov 2008
Posts: 53
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Re: Original brake pad life
Spent the day getting the rotors turned (still have 1 mm left before the minimum spec thickness of 22mm)
Because I went all the way to the end of the pads (rear inside pads) and almost to the end of the fronts, I had to buy wear sensors also.
The bill for parts: FR RR pads, sensors was $450.00! If I had gone to my local Porsche Dealer the cost would have been about $550.00 for pads and sensors.
The rotors were $30.00 for each end of the car. At least I did not need to replace them.
I could have saved at least $100.00 by ordering from SunCoast, but I needed to expedite the repairs.
I think I need to get into the Pagid Yellow pads for DE days. Who has the best deal for Pagid pads?
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03-03-2009, 07:54 AM
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Homewrecking Super Mod
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Location: NY
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Re: Original brake pad life
For Pagid stuff, check with our sponsor Craig here:
www.RennStore.com -- The source for Pagid brake pads
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Pete
2008 Meteor Grey Cayman S
2007 Blue Slate Infiniti G35s 6-speed
 
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03-03-2009, 08:14 AM
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Super-Moderator & PCGB Boxster Tech
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Re: Original brake pad life
Originally Posted by PistolPete13
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Pete they are not the only sponsor that sells Pagid pads.
Automotion, TRG etc etc
Check out the Sponsor List here http://www.planetporsche.net/sponsors.php and shop around for the best prices but remember to mention Planet Porsche / Cayman Club when checking out.
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2004 Atlas Grey - Boxster S
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Last edited by Nick_USA; 03-03-2009 at 08:19 AM.
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03-05-2009, 01:03 AM
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PCA Member
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Join Date: Nov 2008
Posts: 53
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Re: Original brake pad life
Thanks for the input RE: Pagid retailer. I am getting the Pagids from TGR.
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