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M3!
04-09-2008, 05:55 PM
When I lightly tap my brakes I get this "woooob woooob wooob" (the best I can describe) type of noise. I have EBC slotted rotors, by the way. Are my rotors warped? Or could something else cause this?
PlatMS6
04-09-2008, 06:09 PM
Could be pad material... do 2-3 100=>10km/h hard runs (don't fully stop) and see if it disapears... if not it could be warped rotors.
M3!
04-09-2008, 07:31 PM
Could be pad material... do 2-3 100=>10km/h hard runs (don't fully stop) and see if it disapears... if not it could be warped rotors.

Thanks, I'll try that. Now I have to find a place where I can get up to 100km/h and slow down to 10km/hr. Stay off the highway tonight guys! LOL, especially if you see a carbon gray 3 sedan.

I'll prob try it on some quiet streets.
Fuman
04-09-2008, 08:13 PM
warped rotors doesn't show up as noise.
You'll feel vibration in steering wheel and brake pedals when you brake at 120km/h.

what pads do you have? "woob wooob"? what tone?
x_o_k_x
04-09-2008, 11:06 PM
I had that noise when dealer installed new rotors and pads and while they were cold, could that be a problem?
M3!
04-10-2008, 12:31 AM
I had that noise when dealer installed new rotors and pads and while they were cold, could that be a problem?

This always happens, cold, warm... doesn't matter.
Houndskull
04-10-2008, 01:17 AM
i had the same problem mine was a warped rotor. how long have u had it on? mine had a woob woob sound then a squeel and the steering was shimmying at 80kmh
kaval
04-10-2008, 02:22 AM
sounds like warped rotors.
Houndskull
04-10-2008, 02:41 AM
try taking ur calipers out and turn ur rotors see if they spin straight.
M3!
04-11-2008, 03:05 AM
warped rotors doesn't show up as noise.
You'll feel vibration in steering wheel and brake pedals when you brake at 120km/h.

what pads do you have? "woob wooob"? what tone?

I feel some vibration at high speeds, I have stock pads.
Fuman
04-11-2008, 03:14 AM
I feel some vibration at high speeds, I have stock pads.
then it is likely your rotors are warped. When you get them replaced, have the mechanic take a quick look at your pads. If you go to a small shop, their 'extremely brief' brake pad inspection should be free. The shop I went to didn't charge me.
M3!
04-13-2008, 03:14 AM
then it is likely your rotors are warped. When you get them replaced, have the mechanic take a quick look at your pads. If you go to a small shop, their 'extremely brief' brake pad inspection should be free. The shop I went to didn't charge me.

I'm prob gonna replace the rotors myself with the help of a friend. Have to take her to the dealership for my 45km servicing soon anyway, I think brakes are part of this servicing.