Strange sound from brake area, but different!

amoeba · 03-23-2016, 06:46 PM

When the car rolls away from a dead stop, there's a squealing noise coming from the wheel. Once I tap on the brakes the sound goes away. Has anyone encountered something like this?

This is different than the typical squealing when the car comes to a stop. There's no sound coming to a stop, only when I pull away after a complete stop.

Dealer didn't find anything. But some times it ruins my MPG down to 13mpg.

MforLove · 03-23-2016, 07:16 PM

Brake dust aka rust? Lol

CalCarNut · 03-23-2016, 07:21 PM

Brake dust will make them squeal. How much pad is left? Might be the sensors starting to tell you it's time......

goj · 03-24-2016, 12:28 PM

If your mpg is diving down that far it sounds like a brake pad is rubbing While driving.

amoeba · 03-24-2016, 01:06 PM

Brake pad has enough depth. Note that it's when I have released the brakes and the car is rolling away from the stop that the squealing sound is heard.

I thought about the brake pad still rubbing as well. Dealer didn't find anything though.

Mudnut · 03-27-2016, 10:25 PM

I had a rock stuck in the top of one of mine. Made a grinding noise when traveling slowly. Took some hunting to find it. If the BMW dealer didn't find it probably not the case.

Cheers,

Ken

Bowen151 · 03-28-2016, 05:36 PM

Same thing happened me two weeks after buying my car, terrible loud squealing noise like a banshee was coming to get me.

Turned out it was just a small pebble lodged in the brakes, noticed by a passer-by too! Oddly enough we couldn't get it out and on the way to get it removed I had to go over some rather steep speed bumps, it must have dislodged after going over them because the noise vanished and the brakes are completely fine.

03-23-2016, 06:46 PM	#1
amoeba Private First Class 21 Rep 178 Posts Drives: E46 330i zhp, F30 335-MSport Join Date: Jan 2010 Location: Fremont, CA iTrader: (0)	Strange sound from brake area, but different! When the car rolls away from a dead stop, there's a squealing noise coming from the wheel. Once I tap on the brakes the sound goes away. Has anyone encountered something like this? This is different than the typical squealing when the car comes to a stop. There's no sound coming to a stop, only when I pull away after a complete stop. Dealer didn't find anything. But some times it ruins my MPG down to 13mpg.
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03-23-2016, 07:16 PM	#2
MforLove Second Lieutenant 83 Rep 224 Posts Drives: 2014 328xi Join Date: Jan 2015 Location: Tdot iTrader: (0)	Brake dust aka rust? Lol
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03-23-2016, 07:21 PM	#3
CalCarNut Brigadier General 1061 Rep 3,258 Posts Drives: 2015 F36 Jet Black Sport Line Join Date: Apr 2015 Location: Blue Skies iTrader: (0) Garage List 2012 BMW X3 [0.00] 2015 BMW 428i Gran ... [10.00] 1996 Chevrolet Impa ... [8.00]	Brake dust will make them squeal. How much pad is left? Might be the sensors starting to tell you it's time...... __________________ 2015 BMW F36 428i JetBlack. Sport Line Edition 25% 3M Tint\|
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03-24-2016, 12:28 PM	#4
goj Brigadier General 2253 Rep 3,622 Posts Drives: 2016 EBII 340i 6-MT Join Date: Aug 2015 Location: Bay Area, CA iTrader: (0)	If your mpg is diving down that far it sounds like a brake pad is rubbing While driving. __________________ BMW CCA Member #516012 2016 340i, Estoril Blue, Manual Transmission, MPE, MPBBK, HRE FF04 Instagram: @brandons340i
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03-24-2016, 01:06 PM	#5
amoeba Private First Class 21 Rep 178 Posts Drives: E46 330i zhp, F30 335-MSport Join Date: Jan 2010 Location: Fremont, CA iTrader: (0)	Brake pad has enough depth. Note that it's when I have released the brakes and the car is rolling away from the stop that the squealing sound is heard. I thought about the brake pad still rubbing as well. Dealer didn't find anything though.
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03-27-2016, 10:25 PM	#6
Mudnut Enlisted Member 26 Rep 44 Posts Drives: 2015 s25d Join Date: Sep 2015 Location: Australia iTrader: (0)	I had a rock stuck in the top of one of mine. Made a grinding noise when traveling slowly. Took some hunting to find it. If the BMW dealer didn't find it probably not the case. Cheers, Ken
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03-28-2016, 05:36 PM	#7
Bowen151 New Member 3 Rep 11 Posts Drives: BMW 2012 320D Efficientdynamic Join Date: Mar 2016 Location: N.Ireland iTrader: (0)	Same thing happened me two weeks after buying my car, terrible loud squealing noise like a banshee was coming to get me. Turned out it was just a small pebble lodged in the brakes, noticed by a passer-by too! Oddly enough we couldn't get it out and on the way to get it removed I had to go over some rather steep speed bumps, it must have dislodged after going over them because the noise vanished and the brakes are completely fine.
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