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Bmw howling brake rotors

When I first start to drive the rotors makes this big howl when pressing brakes until the rotor warm up then it stops

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  • BMW Master
  • 1,013 Answers

Sounds like your pads are glazed. You probably need to replace the pads, and likely the rotors.

Posted on May 07, 2014

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Posted on Jan 02, 2017

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  • 2 Answers

SOURCE: 1999 Chev Blazer 6cyl 4.3L

I replaced the rotors and pads on my right hand drive Blazer and had the same problem ,dont worry in a couple of days normal running the pressure goes away and you dont get the heat problem.
Its just the new pads bedding in.

J.C.
U.K.

Posted on Jul 19, 2008

jgwhomeequip
  • 1902 Answers

SOURCE: no brakes after changing brake caliper & bleeding system

Sounds like you still have air in your brake lines. Make sure all your brake lines are tight. Then bleed again. Bleed the trouble side first, meaning right side, then go to front left, back left then back right, make sure that your brake fluid is also full

Posted on Feb 11, 2009

LT1Rob
  • 55 Answers

SOURCE: 325 ci brake rotors have been replaced 4 times in 6 years

BMW rotors are not known for lasting very much more than 30-45k miles. When the brakes are inspected, they measure the pads using a special tool threw the outer brake pad. Min spec is 3mm. When the pads are replaced, they measure the thickness of the rotors. The rotor spec is stamped on the rotor. if they are under that spec, they recommend replacing them as well. Next time you bring it in for service, just ask them to measure the rotor thinkness, (its not a huge task, all they have to do is take the wheels off). But more often than not, the rotors wear just as fast as the pads.

Posted on Mar 04, 2009

scott586
  • 41 Answers

SOURCE: How to remove disc brake rotor on a 1992 Ford Explorer 4-wheel drive

It should just pull off once you have taken the caliper off. It may be seized in place, if thats the case try spraying the back of it with some sort of penetrating oil, let it sit for a bit. THen put some heat on it if you have torches, or beat it with a hammer. Sounds kind of crude...but it works

Posted on May 07, 2009

  • 105 Answers

SOURCE: 2006 jeep liberty LE under 58,000 came off warranty in march

check ft hub assembly for play any play at all means bearings are bad try to drive car on dry paved road and turn wheel back and forth listen for change in sound this will tell you which side is bad

Posted on May 20, 2009

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