BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > What could cause brakes to make a squeaking noise?

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      03-08-2012, 05:28 PM   #1
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What could cause brakes to make a squeaking noise?

I changed both front and rear brake pads about a month ago, and recently i've been noticing a loud squeak whenever i'm braking. it's really annoying and i know it's not from the pads cause they're new. so what could it be? and what can i do about it?
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      03-09-2012, 09:27 PM   #2
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I had something similar to this; my car wheel would squeak at low speeds (and when I was braking). It turned out that the dealership installed the brake sensor incorrectly, and as a result the sounds was the sensor 'rubbing' (I'm guessing against the rotor). Took my car back in and they fixed it free of charge.

Hope this helps..
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      03-10-2012, 04:26 PM   #3
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Did you put a thin film of copper grease on the rear of the pads (the parts that touch the calliper and pistons...)?

But, as said above, maybe the wear sensors incorrectly fitted!?
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brake pads, brakes squeaking, squeak, squeaky noise

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