S-Class (W220) 1999-2006: S 320 CDI, S 320, S430, S 500, S 600

Grinding sound (ABS sound) when braking at low speed

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Old 01-24-2017 | 01:17 AM
  #1  
cybertronicify's Avatar
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From: CALIFORNIA, UNITED STATES
2003 S430, 2014 E350
Grinding sound (ABS sound) when braking at low speed

Hey all,

I have a problem here... Sometimes when I brake below 20mph. I hear a grinding abs sound. Sounds like it's coming from the front left. I don't have any CEL or ABS or malfunctions. What can it be? Its intermittent, happens not all the time.
Old 01-24-2017 | 05:02 AM
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vmystikilv's Avatar
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From: Dallas, TX
Range Rover
Your front brakes are shot, order bosch or OEM pads and not the cheap stuff
Old 01-24-2017 | 08:04 AM
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Mercedes
You need rotors too
Old 01-24-2017 | 10:29 AM
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From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
I would start by physically examining the brakes. If the pads and/or rotors are worn, just replace them.

If the pads and rotors are good, you might just need to "burnish" the brakes. This requires finding a time and place where you can get away with driving erratically. Accelerate to fifty mph and brake firmly to almost a full stop. Repeat six or eight times. Drive moderately home so that the brakes can cool, and let the brakes cool completely.

Another approach that sometimes quietens grumbling or squealing brakes is to pressure wash the brakes thoroughly.

But the first and most important thing to do is to actually examine the brakes.
Old 01-25-2017 | 12:34 AM
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ibeforreal's Avatar
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2003 S500 - Toyota Corolla (in the rain)
IF you do need to buy brake pads buy the Akebono. They will leave your wheels dust free.
Old 01-25-2017 | 10:05 PM
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cybertronicify's Avatar
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2003 S430, 2014 E350
Okay, thanks everyone. I will check my pads and rotors this weekend. They were replaced only 10,000 miles ago.
Old 01-25-2017 | 10:09 PM
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From: Mississauga, Ontario, Canada
Mercedes SL63 AMG; Mercedes E63 AMG S 4matic; Mercedes C43 AMG; Mercedes S Class, Mercedes GLK
I've had this as well, and it wasn't brakes/rotors. Happens intermittently but has never hampered overall performance of the vehicle so haven't worried about it.

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