brake pad light comes on

immacul8cs · 11-05-2009, 04:59 PM

during the last brake service i replace all 4 rotors and all the pads----that was appx 8 months ago----now the warning is back on----

how can i tell if the rear also need doing---is it true that front pads get worn out twice as fast then rear pads----

ltc · 11-05-2009, 05:22 PM

Front brakes wear quicker than rears, simply based on bias and weight distribution.

immacul8cs · 11-05-2009, 05:45 PM

thank you--how to tell---are the rear pads little thinner than front pads to start off with----

Renn 951 · 11-05-2009, 07:27 PM

Quote:

Originally Posted by immacul8cs

thank you--how to tell---are the rear pads little thinner than front pads to start off with----

Just eyeball 'em. You don't need a warning light to tell you whether there is any pad material left. It's hard to see how you could have worn them down in only 8 months - how many miles have you put on during those 8 months?

immacul8cs · 11-05-2009, 10:14 PM

Quote:

Originally Posted by Renn 951

Just eyeball 'em. You don't need a warning light to tell you whether there is any pad material left. It's hard to see how you could have worn them down in only 8 months - how many miles have you put on during those 8 months?

---could it be a damaged sensor----i have put on 20k miles on the pads

Renn 951 · 11-05-2009, 11:00 PM

I had over 50K miles on my C-S before the front wear sensor triggered. I changed my rear pads at over 71K miles and the wear sensors hadn't even triggered yet.

20K miles in 8 months is a lot of miles, but I'd be surprised if you've worn out pads in that time unless you've got a caliper issue causing the pads to drag - and you'd probably hear something if that was the case. Check the wiring for your pad sensors and see if any of them have broken.

immacul8cs · 11-06-2009, 10:55 AM

front wons are definately worn--possibly it was the drilled rotors that are eating the pads---i am putting hawk at front to see if they last a little longer

11-05-2009, 04:59 PM	#1
immacul8cs User Join Date: Nov 2008 Posts: 64	brake pad light comes on during the last brake service i replace all 4 rotors and all the pads----that was appx 8 months ago----now the warning is back on---- how can i tell if the rear also need doing---is it true that front pads get worn out twice as fast then rear pads----

11-05-2009, 05:22 PM	#2
ltc Super Moderator (training wheels attached) Lifetime Rennlist Member Join Date: Mar 2002 Location: RL Moderator Bunker Posts: 21,178	Front brakes wear quicker than rears, simply based on bias and weight distribution. __________________ ...Lewis

11-05-2009, 11:00 PM	#6
Renn 951 Addict Rennlist Member Join Date: Nov 2001 Location: N. Virginia Posts: 1,069	I had over 50K miles on my C-S before the front wear sensor triggered. I changed my rear pads at over 71K miles and the wear sensors hadn't even triggered yet. 20K miles in 8 months is a lot of miles, but I'd be surprised if you've worn out pads in that time unless you've got a caliper issue causing the pads to drag - and you'd probably hear something if that was the case. Check the wiring for your pad sensors and see if any of them have broken. __________________ 88 951 07 Boxster S 04 Cayenne S 06 BMW 530xiT 00 Audi S4 (sold)

11-05-2009, 05:45 PM	#3
immacul8cs User Join Date: Nov 2008 Posts: 64	thank you--how to tell---are the rear pads little thinner than front pads to start off with----

11-06-2009, 10:55 AM	#7
immacul8cs User Join Date: Nov 2008 Posts: 64	front wons are definately worn--possibly it was the drilled rotors that are eating the pads---i am putting hawk at front to see if they last a little longer