IS - 3rd Gen (2014-present) Discussion about the 2014+ model IS models

brake pad/rotor mystery

Thread Tools
 
Search this Thread
 
Old Apr 20, 2022 | 09:13 PM
  #1  
Ruzifan's Avatar
Ruzifan
Thread Starter
Pit Crew
5 Year Member
Photogenic
 
Joined: Jun 2018
Posts: 151
Likes: 10
From: ontario
Default brake pad/rotor mystery

so my 2017 lexus is350 Fsport has about 50K KM. That's about 31K miles.
in this 50K Km of driving, i changed my rotors and pads 4 times. YES 4 times. i have no idea why but my brake pads just keeps finishing quick.

The first time i changed it was after 20K KM. i replaced the pads only to EBC redstuff, but didn't change the rotors, after driving few days, the vibration was extrmely bad when i pressed the brake. I'm assuming it's the ebc pads digging into the old rotors. They werne't resurfaced.
so after that happened, i just bought brand new OEM pads and rotors and changed it and they lasted 15K KM. I changed all 4 again and some reason i kept getting lot of brake dust and felt some vibration so i changed it again to Akebono and centric rotots. It was running fine at first, then after 6K KM, (Now) when i press the brake, i feel the vibration on my pedal.
I don't understand what's happening. yes, i won't like i do brake a little hard at times but i don't understand why it's vibrating? are the rotors warped? do all my rotors get warped because i brake so hard often and the pads heat up the rotors and then eventually warps?

I am not planning to buy front EBC yellowstuff and new rotors. I just don't know which brand rotors i should go with. the vibration is bad and it's annoying.
Reply
Old Apr 20, 2022 | 09:29 PM
  #2  
LeX2K's Avatar
LeX2K
Lexus Fanatic
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2010
Posts: 25,911
Likes: 4,269
From: Alberta
Default

Do you have even pad wear on all 4 wheels?
Reply
Old Apr 20, 2022 | 09:33 PM
  #3  
Ruzifan's Avatar
Ruzifan
Thread Starter
Pit Crew
5 Year Member
Photogenic
 
Joined: Jun 2018
Posts: 151
Likes: 10
From: ontario
Default

yes the front wear equally and rears wear equally. i say that because fronts will wear more vs rear but they'll be equal. so 3mm left in fronts and 5mm left in rears.
Reply
Old Apr 20, 2022 | 10:00 PM
  #4  
LeX2K's Avatar
LeX2K
Lexus Fanatic
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2010
Posts: 25,911
Likes: 4,269
From: Alberta
Default

Don't know how to explain that. Either you hammer the brake pedal at every opportunity or all 4 calipers are dragging.
Reply
Old Apr 21, 2022 | 06:53 AM
  #5  
ScytheDC's Avatar
ScytheDC
Intermediate
5 Year Member
Liked
Loved
 
Joined: Aug 2020
Posts: 301
Likes: 159
From: TX
Default

Sounds like your rotors are warped or need to be resurfaced. If you feel wobbly/vibration/shudder only when braking especially at higher speed, it’s usually a sign of bad rotors. Try getting new rotors or resurfaced rotors and akebono brake pads. The pads last a lot longer and give less dust. Turn your resurface your rotors when the pads need to be changed.
Reply
Old Apr 21, 2022 | 07:12 AM
  #6  
Ruzifan's Avatar
Ruzifan
Thread Starter
Pit Crew
5 Year Member
Photogenic
 
Joined: Jun 2018
Posts: 151
Likes: 10
From: ontario
Default

Originally Posted by ScytheDC
Sounds like your rotors are warped or need to be resurfaced. If you feel wobbly/vibration/shudder only when braking especially at higher speed, it’s usually a sign of bad rotors. Try getting new rotors or resurfaced rotors and akebono brake pads. The pads last a lot longer and give less dust. Turn your resurface your rotors when the pads need to be changed.
i just ordered EBC yellowstuff and EBC premium rotors. not the slotted/dimpled ones. let's see how these hold out.
Reply
Old Apr 22, 2022 | 01:53 PM
  #7  
V350's Avatar
V350
Intermediate
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2018
Posts: 266
Likes: 49
From: CA
Default

Vibration in peddle = rear pad issue
Vibration in steering wheel = front pad issue
Reply
Old Apr 22, 2022 | 02:00 PM
  #8  
E46CT's Avatar
E46CT
Lexus Test Driver
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2016
Posts: 9,496
Likes: 2,570
Default

As I've posted (first many years ago), the IS F Sport uses Professional German BMW/BMW-Style pads from a BMW supplier. High wear, high friction, high performing.

Cost of doing business.

It's exactly what you signed up for. Wear it like a badge of honor. When I had my 2016 IS200T F Sport brand new from the dealer, I replaced my first set of front pads at 11,000 miles.

You have to pay to play.

Want longer wear? You'll get reduced performance.

"Nothing comes for free."

-E46CT
Reply
Old Apr 23, 2022 | 02:00 PM
  #9  
swaangin's Avatar
swaangin
Racer
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2017
Posts: 1,687
Likes: 381
From: nj
Default

Not too sure about post since there have been many people who've been able to get plenty of life from the rotor but pads are a bit of a different story. I think your issue is definitely abnormal and you may want to check if any of your calipers are seized.

Recently, I got my job done at a super cheap shop, they did my pads + rotors all around and my rear pad on my passenger side exploded (brake dust and metal to metal scrap all over my new wheels). They didn't put any lubrication where they were supposed to in the caliper and it seized. Fixed the caliper and just swapped REAR pads and the rotor is still good, no shakes, even AFTER metal to metal contact. The pads may wear every 15-25k miles but the rotors I think should be around 40-50k miles. Don't change your rotors if you don't need to
Reply
Old Apr 24, 2022 | 07:57 AM
  #10  
arentz07's Avatar
arentz07
Moderator
5 Year Member
Shutterbug
Community Influencer
Community Favorite
 
Joined: Nov 2016
Posts: 9,589
Likes: 4,779
From: GA
Default

It's possible the calipers are dragging the pads all the time. I bought a used 2010 Camry back in the day, and it had this problem when I bought it. Within a month my brakes needed changing, even though they were OE Camry pads and rotors with only 20,000 miles on the car. Luckily my dealer smelled a rat and looked into the problem. Fixed it under warranty.

I had a 2016 IS 300 AWD F Sport and the brake pads lasted me 30,000 miles, and I needed to resurface the rotors just once.
Reply
Old Apr 26, 2022 | 12:50 PM
  #11  
aa146's Avatar
aa146
Driver
 
Joined: Jul 2018
Posts: 52
Likes: 12
From: CA
Default

I agree with @arentz07, there's probably constant drag on the calipers, which possibly means that there might be some kind of obstruction in the brake system that's preventing the fluid from flowing freely. Pressing the brake pedal forces brake fluid to the calipers. But when you let off the brake pedal, there's only residual vacuum within the system to pull the brake fluid back from the calipers to release pressure against the caliper pistons.

Last edited by aa146; Apr 26, 2022 at 12:58 PM.
Reply
Old Apr 30, 2022 | 06:00 AM
  #12  
nitroracer's Avatar
nitroracer
Advanced
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2018
Posts: 503
Likes: 53
Default

Originally Posted by Ruzifan
i just ordered EBC yellowstuff and EBC premium rotors. not the slotted/dimpled ones. let's see how these hold out.
I have about 40k miles on EBC Yellow, and original rotors, nearing almost 90k miles. After swapping them in for the OEM pads, I never heard that annoying squeal again (which apparently there was a TSB on *after* I complained about it, so nothing was ever done).

YMMV.

Last edited by nitroracer; Apr 30, 2022 at 06:04 AM.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Aznnoir22
IS F (2008-2014)
1
Jul 1, 2021 12:20 PM
ThumperPup
ES - 1st to 6th Gen (1990-2018)
13
Jul 8, 2020 05:49 PM
warminwisc
LS - 3rd Gen (2001-2006)
13
Oct 4, 2019 03:03 AM
m32
GS - 3rd Gen (2006-2011)
7
Jan 17, 2012 09:24 PM
DaveJ
RX - 2nd Gen (2004-2009)
10
Oct 12, 2007 01:05 PM




All times are GMT -7. The time now is 11:40 PM.