Doc_Oc
Veteran Member
I just upgraded my spindles to 1.8T along with new rotors, pads and wheel bearings. So, only the spindles, carriers and calipers are used.
The first 2-3 brake cycles are ok, but as soon as the brakes warm up, they develop a thud-thump rhythmic noise, wheel speed dependent.
I visually inspected the rotors and pads (removed from the car) and can't see anything abnormal.
The hub is not touching anything (at least that I can see).
I need some ideas!!!
I will swap rotors and pads from side to side, also, I will swap the calipers guide/carrier pins.
I think the sound comes from the driver side, although it's not very obvious.
Can a rotor be cracked? (Brembo rotors) As I said. It only makes the noise after it heats up. And the more it heats up (the harder and longer you brake) the louder the noise gets.
Not being able to see any defects on the pads and rotors, my only guess right now is that one of them (which one?????) has a fine fissure that expands when heated and that's what makes the thud noise.
Anybody experienced something like this before?
I can't even call the shop I bought the rotors and pads from and ask for warranty since I am not sure what is broken
The first 2-3 brake cycles are ok, but as soon as the brakes warm up, they develop a thud-thump rhythmic noise, wheel speed dependent.
I visually inspected the rotors and pads (removed from the car) and can't see anything abnormal.
The hub is not touching anything (at least that I can see).
I need some ideas!!!
I will swap rotors and pads from side to side, also, I will swap the calipers guide/carrier pins.
I think the sound comes from the driver side, although it's not very obvious.
Can a rotor be cracked? (Brembo rotors) As I said. It only makes the noise after it heats up. And the more it heats up (the harder and longer you brake) the louder the noise gets.
Not being able to see any defects on the pads and rotors, my only guess right now is that one of them (which one?????) has a fine fissure that expands when heated and that's what makes the thud noise.
Anybody experienced something like this before?
I can't even call the shop I bought the rotors and pads from and ask for warranty since I am not sure what is broken