Squealing front brakes

Hornet_Rider · 02-09-2019, 01:03 PM

I have a 2016 335GT M Sport and the front brakes are squealing since forever... the spray works for a few days but the squeal is always back. Anyone else with this problem? I don't suspect wear since it has been doing it almost immediately when the car was new. It just drives me insane to require to spray the rotor with anti squeal every week.

Billfitz · 02-09-2019, 01:57 PM

Do a search in the Suspension|Chassis|Brakes forum. This topic comes up on practically a daily basis.

admranger · 02-09-2019, 05:31 PM

If you're handy and have the time, you can try filing the edges of the brake pad to chamfer it a bit. Squealing is usually caused by the back edge (or bottom edge) of the pad grabbing prior to the rest of the pad, causing it to vibrate.

Before doing anything, try doing some high speed to slow speed braking actions to scrub the surface of the rotor and pad.

The goo on the back of the pad can help, but the sprays for the rotors are usually useless.

02-09-2019, 01:03 PM	#1
Hornet_Rider Private 3 Rep 50 Posts Drives: X3 35i 2011 M-Sport Join Date: Jul 2011 Location: Moose Jaw, SK iTrader: (0)	Squealing front brakes I have a 2016 335GT M Sport and the front brakes are squealing since forever... the spray works for a few days but the squeal is always back. Anyone else with this problem? I don't suspect wear since it has been doing it almost immediately when the car was new. It just drives me insane to require to spray the rotor with anti squeal every week.
	Appreciate 0 Tweet Quote

02-09-2019, 01:57 PM	#2
Billfitz Lieutenant General 8225 Rep 16,060 Posts Drives: '15 328iX GT Join Date: Jan 2015 Location: New Hampshire iTrader: (0)	Do a search in the Suspension\|Chassis\|Brakes forum. This topic comes up on practically a daily basis.
	Appreciate 0 Quote

02-09-2019, 05:31 PM	#3
admranger Retired Curmudgeon 2985 Rep 4,047 Posts Drives: ‘19 X3M40i, ‘18 m550i Join Date: May 2011 Location: Las Vegas, NV iTrader: (1)	If you're handy and have the time, you can try filing the edges of the brake pad to chamfer it a bit. Squealing is usually caused by the back edge (or bottom edge) of the pad grabbing prior to the rest of the pad, causing it to vibrate. Before doing anything, try doing some high speed to slow speed braking actions to scrub the surface of the rotor and pad. The goo on the back of the pad can help, but the sprays for the rotors are usually useless. __________________ '19 X3 M40 Carbon Black/Oyster, '23 Jeep Grand Cherokee L Summit, Past BMWs: '18 M550i, '18 330 GT, '16 X5 40e, '11 E90M3, '06 X5 4.4, '03 330i ZHP, '02 M3, '97 Z3 2.8, '95 M3 (2x), '94 530i (manual), '92 525i (manual), '88 M3, '87 325iS
	Appreciate 0 Quote