what could cause the brake grinding noises?!

kirax2 · 12-28-2009, 04:06 AM

It just start happening all of sudden now days, it worry me since i drive 100 miles highway everday

brakes pad are Hawk HPS and Rotors are some 3rd Party Slotted rotors i had not more than a year, they were braking like magic before but all of sudden they start making crazy grinding noise when my car brake to about a complete stop. So when i get my tires mounted i also have the guy check out my brakes they say they look perfectly fine, and say there were at least 50% life left.

so what could have cause this? low brake fluid? some hidden crack?

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AdidasC230 · 12-28-2009, 08:01 AM

My hawk pads on prev cars always made noise, it was just the nature of the pad as far as every one knew.

Tom P. · 12-28-2009, 09:10 PM

My brakes make "grinding" noises when ABS or ESP engages.

TemjinX2 · 12-28-2009, 10:07 PM

maybe a wheel bearing? You should jack up the car and spin the wheels. If the wheels spins freely..then your wheeling bearing is shot.

dv-12 · 12-29-2009, 03:21 AM

i'm, also having the same problem. "squeaking" sound when i'm breaking to a complete stop.

kirax2 · 12-29-2009, 02:20 PM

Quote:

Originally Posted by dv-12

i'm, also having the same problem. "squeaking" sound when i'm breaking to a complete stop.

no those are different, i am having "METAL GRINDING METAL" noise

kirax2 · 12-29-2009, 02:21 PM

Quote:

Originally Posted by TemjinX2

maybe a wheel bearing? You should jack up the car and spin the wheels. If the wheels spins freely..then your wheeling bearing is shot.

hmm what do you mean by spin freely? i might try that out....

FrankW · 12-29-2009, 08:26 PM

Quote:

Originally Posted by kirax2

hmm what do you mean by spin freely? i might try that out....

RWD front wheel should spin freely when off the ground regardless. if your front wheel can't be spun by hand when off the ground that only means you have something that's wrong with your brakes.

unless you see excessive oil leak out the hub of the bearing or hear grinding from the bearing when you spin it your wheel bearings are fine.

TemjinX2 · 12-29-2009, 09:42 PM

Worth a shot to check it out.

its free and only takes about 5min of your time.

http://www.youtube.com/watch?v=gMbby4UfkMk

http://www.youtube.com/watch?v=JSsC-lWB1lg

bcss · 12-29-2009, 09:55 PM

if you want to check wheel bearing, then jack it up and grap the tire up and down or left and right. shake it. if theres free play then its wheel bearing problem.

kirax2 · 12-30-2009, 01:57 AM

holy **** no wayyyy if i have that problem should my steering wheel shake like crazy when i drive on the hwy?

ok i just did that youtube video thing and my bearing are fine

anyway i guess i will just change my brakes pad and rotors + fluid flush just stop the worry and see how it goes

FrankW · 12-30-2009, 05:21 AM

steering wheel vibration left/right = front wheels. up/down = rear wheels.

most likely it's your wheels are out of balance.

Benzo 003 · 01-01-2010, 10:03 AM

try this....

while driving at 30mph or so, windows up, radio and ventilation off, lane change hard left then right or the other way what ever and listen( no braking). A hard swerve will put a heavy load on each of the front wheels individually. You will hear a bad bearing if there is one, otherwise, cheap pads or cheap rotors or both.

12-28-2009, 09:10 PM	#3
Tom P. Junior Member Garage is empty, add now Join Date: Dec 2009 Location: Thunder Bay, ON Posts: 22 Drives: C280W4M	My brakes make "grinding" noises when ABS or ESP engages. __________________

12-28-2009, 10:07 PM	#4
TemjinX2 MBWorld Fanatic! Garage is empty, add now Join Date: Dec 2007 Location: Corona, CA Posts: 5,034 Drives: 03 g35 coupe...........02 c32 Sold	maybe a wheel bearing? You should jack up the car and spin the wheels. If the wheels spins freely..then your wheeling bearing is shot. __________________ 2002 Mercedes c32 amg S2k projector retrofit http://www.mbworld.org/forums/c32-am...-retrofit.html My carputer http://forums.mbworld.org/forums/sho...d.php?t=237456 TemjinX2's rides http://forums.mbworld.org/forums/sho...=1#post3053382 FREE C32 BLOCK/ PART OUThttp://mbworld.org/forums/engine-per...ml#post5433265

12-29-2009, 09:42 PM	#9
TemjinX2 MBWorld Fanatic! Garage is empty, add now Join Date: Dec 2007 Location: Corona, CA Posts: 5,034 Drives: 03 g35 coupe...........02 c32 Sold	Worth a shot to check it out. its free and only takes about 5min of your time. http://www.youtube.com/watch?v=gMbby4UfkMk http://www.youtube.com/watch?v=JSsC-lWB1lg __________________ 2002 Mercedes c32 amg S2k projector retrofit http://www.mbworld.org/forums/c32-am...-retrofit.html My carputer http://forums.mbworld.org/forums/sho...d.php?t=237456 TemjinX2's rides http://forums.mbworld.org/forums/sho...=1#post3053382 FREE C32 BLOCK/ PART OUThttp://mbworld.org/forums/engine-per...ml#post5433265

12-29-2009, 09:55 PM	#10
bcss Junior Member Garage is empty, add now Join Date: Apr 2008 Location: Canada Burnaby Posts: 31 Drives: 2005 w203 c230 sport sedan	if you want to check wheel bearing, then jack it up and grap the tire up and down or left and right. shake it. if theres free play then its wheel bearing problem. __________________ 2005 W203 C-Class C230K. sport sedan.

12-30-2009, 01:57 AM	#11
kirax2 Super Member Garage is empty, add now Join Date: Jun 2008 Location: Las Vegas, NV Posts: 885 Drives: I drive a Toyota Hybrid...	holy **** no wayyyy if i have that problem should my steering wheel shake like crazy when i drive on the hwy? ok i just did that youtube video thing and my bearing are fine anyway i guess i will just change my brakes pad and rotors + fluid flush just stop the worry and see how it goes __________________

12-28-2009, 08:01 AM	#2
AdidasC230 Super Member 2008 Mercedes-Benz C-Class Join Date: Oct 2009 Posts: 730 Drives: Saab 900 SE	My hawk pads on prev cars always made noise, it was just the nature of the pad as far as every one knew.

12-29-2009, 03:21 AM	#5
dv-12 Member Garage is empty, add now Join Date: Jan 2009 Posts: 79 Drives: c320	i'm, also having the same problem. "squeaking" sound when i'm breaking to a complete stop.

12-30-2009, 05:21 AM	#12
FrankW MBworld Guru Garage is empty, add now Join Date: Apr 2002 Location: Diamond Bar, CA Posts: 21,989 Drives: white and whiter	steering wheel vibration left/right = front wheels. up/down = rear wheels. most likely it's your wheels are out of balance. __________________ 2002 W203 M112K with insane amount of mods "updates on last page!" 2008 W204 M272 with not so much mods. wants 307hp 7200 redline engine from SL350 (new pic on last page) For Sale:

01-01-2010, 10:03 AM	#13
Benzo 003 Senior Member Garage is empty, add now Join Date: Sep 2009 Location: Chicagoland Posts: 360 Drives: 2008 ML350 4matic	try this.... while driving at 30mph or so, windows up, radio and ventilation off, lane change hard left then right or the other way what ever and listen( no braking). A hard swerve will put a heavy load on each of the front wheels individually. You will hear a bad bearing if there is one, otherwise, cheap pads or cheap rotors or both.

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