E-Class (W211) 2003-2009

06 e350 brake noise

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Old Apr 28, 2012 | 10:36 AM
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turboriceco0ker's Avatar
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06 e350 brake noise

Hi, I changed my brake pads last night. Everything went well and all put in. This morning, without turning on the engine, I depressed the brake pedal and I could hear the noise from the brake unit under the hood. The noise was heard after 3-4 times pressing the pedal.

For these 350s, is there something I needed to do?
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Old Apr 28, 2012 | 11:50 AM
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NCook's Avatar
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06 E350
My o6 e350 behaves the same way. I think it's normal but I'm not the expert.
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Old Apr 28, 2012 | 01:08 PM
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From what I've read. Sbc must be disconnected or deactivated prior to brake job. So I replaced brake pads last night without deactivate the sbc nor bleed the brake lines. Now they are installed, any suggestion on how to make that noise goes away?

Could it be the sbc that was not deactivated?
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Old Apr 28, 2012 | 04:22 PM
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06 E350
The reason to deactivate the sbc is so it doesn't come on while you are replacing the brake pads, if it did then the system would pressurize, and there would be the possibility of you losing a finger if it was in the way of the caliper piston.

I just went out to my car, pumped the brakes 4 times (key out of the ignition) and the sbc came on. As I said before, I think it is normal.
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Old Apr 30, 2012 | 01:27 PM
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2017 S550 4matic
It's normal. You should only worry if you DONT hear it.
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