Ugh, the car has developed an undesirable sound

wjjkoevoets · 06-27-2019, 01:27 PM

Hello all,

Recently my car has decided to (mostly) randomly generate a terribly annoying sound when driving.

Some observations:
- If I touch the brake pedal, the sound disappears almost instantly
- It happens somewhat randomly, sometimes I can keep the sound going for miles, sometimes it won't occur for miles
- Seems to go away at higher speeds
- Seems to be coming from the rear, but it's hard to tell
- Seems to be somewhat affected by steering to the left or right (I think steering to the left makes it slightly worse, but I may be wrong)

The sounds starts about 10 seconds in. It's quite loud. On the 19 seconds mark I hit the brake and the sound disappears.

Anybody have an idea of what it could be?

bimmer_girl89 · 06-27-2019, 02:31 PM

The sound is similar to what I have encountered a couple months ago, a tiny pebble got stuck in between the brake shield and pad on mine. The sound came at random times too. Sometimes at low speed, sometimes at high but the pebble fell out the next day.

wjjkoevoets · 06-27-2019, 03:28 PM

Thanks, that makes sense.

I'll report back what I'll find.

Mehim · 06-27-2019, 04:40 PM

Quote:

Originally Posted by wjjkoevoets

Thanks, that makes sense.

I'll report back what I'll find.

Had one removed from the dealership, about the size of a dime. Charged me for a half hour of labor.

wjjkoevoets · 08-24-2019, 07:02 AM

Had dealer investigate the sound. Apparently it wasn't a pebble, it was the brake shield itself (left front). They've sorted it out.

06-27-2019, 01:27 PM	#1
wjjkoevoets Bright Sky 1164 Rep 922 Posts Drives: BMW M235i (8AT) Join Date: Aug 2015 Location: Breda, NL iTrader: (0) Garage List 2014 BMW M235i [0.00]	Ugh, the car has developed an undesirable sound Hello all, Recently my car has decided to (mostly) randomly generate a terribly annoying sound when driving. Some observations: - If I touch the brake pedal, the sound disappears almost instantly - It happens somewhat randomly, sometimes I can keep the sound going for miles, sometimes it won't occur for miles - Seems to go away at higher speeds - Seems to be coming from the rear, but it's hard to tell - Seems to be somewhat affected by steering to the left or right (I think steering to the left makes it slightly worse, but I may be wrong) The sounds starts about 10 seconds in. It's quite loud. On the 19 seconds mark I hit the brake and the sound disappears. Anybody have an idea of what it could be? __________________ BMW ///M235i (EBII) - BM3 (+TCU) - Wagner DP - ER CP - ER TIC CP - CSF FMIC - GFB DV+ - Pure Inlet - K&N Drop-in AF - MPE Of all tyrannies, a tyranny sincerely exercised for the good of its victims may be the most oppressive.
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06-27-2019, 02:31 PM	#2
bimmer_girl89 Private First Class 88 Rep 174 Posts Drives: 2020 F39 X2 xDrive28i Join Date: Mar 2014 Location: Canada iTrader: (0) Garage List 2017 BMW 230i XDrive [0.00]	The sound is similar to what I have encountered a couple months ago, a tiny pebble got stuck in between the brake shield and pad on mine. The sound came at random times too. Sometimes at low speed, sometimes at high but the pebble fell out the next day. __________________ 2020 F39 X2 xDrive28i M Sport Package (Black Sapphire Metallic 2017 F22 230i xDrive M Sport Package (Alphine White) 2015 F30 328i xDrive Luxury Line (Alphine White) 2012 F30 320 RWD (Alphine White) As you can see, I have an unhealthy obsession with Alphine White
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06-27-2019, 03:28 PM	#3
wjjkoevoets Bright Sky 1164 Rep 922 Posts Drives: BMW M235i (8AT) Join Date: Aug 2015 Location: Breda, NL iTrader: (0) Garage List 2014 BMW M235i [0.00]	Thanks, that makes sense. I'll report back what I'll find. __________________ BMW ///M235i (EBII) - BM3 (+TCU) - Wagner DP - ER CP - ER TIC CP - CSF FMIC - GFB DV+ - Pure Inlet - K&N Drop-in AF - MPE Of all tyrannies, a tyranny sincerely exercised for the good of its victims may be the most oppressive.
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08-24-2019, 07:02 AM	#5
wjjkoevoets Bright Sky 1164 Rep 922 Posts Drives: BMW M235i (8AT) Join Date: Aug 2015 Location: Breda, NL iTrader: (0) Garage List 2014 BMW M235i [0.00]	Had dealer investigate the sound. Apparently it wasn't a pebble, it was the brake shield itself (left front). They've sorted it out. __________________ BMW ///M235i (EBII) - BM3 (+TCU) - Wagner DP - ER CP - ER TIC CP - CSF FMIC - GFB DV+ - Pure Inlet - K&N Drop-in AF - MPE Of all tyrannies, a tyranny sincerely exercised for the good of its victims may be the most oppressive.
	Appreciate 0 Quote