2004 Mercedes Benz C230 Screeching from Front Brakes.

Tiny
SRENJITH
  • MEMBER
  • 2004 MERCEDES BENZ C230
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 45,000 MILES
When I apply brakes on my car, I hear a screeching sound from the front right wheel. I have a feeling that the break pads are worned out. My questions is, should I replace the rotor along with the pads, I mean if the rotor has enough thickness, can it machined and put new pads on it. Please let me know about the rotor as I dont want to change the rotor until it is done. Thanks for your help!
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Wednesday, June 4th, 2008 AT 10:41 AM

3 Replies

Tiny
DISCOSTU24000
  • MEMBER
The minimum thickness allowed on these rotors is 22.4 mm. Use a micrometer to measure the thickness around the rotor. These rotors are drilled and cannot be resurfaced. They must be replaced if they are too thin or have gouges in them.
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Thursday, June 5th, 2008 AT 3:25 PM
Tiny
SRENJITH
  • MEMBER
Thanks. But dont the sensor light will show up if either the rotor or the pads are done?
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Wednesday, June 11th, 2008 AT 10:11 AM
Tiny
DISCOSTU24000
  • MEMBER
The sensor only detects pad wear, it will not tell you if the rotor is worn beyond minimum tolerance. You need to measure the rotors by hand. The sensor measures how far the pad is from the rotor face. Even if the rotor was paper thin, the brake warning light wouldn't illuminate unless the pads were worn
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Wednesday, June 11th, 2008 AT 12:14 PM

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