Question about 2000 BMW 3 Series

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What exactly would cause left front brake to grab randomly

It apparently is a DSC problem because the DSC light comes on when it does it. What component of the DSC system would cause this problem? It may not do it for several days then the brake will start grabbing and releasing rapidly on the left front side. It lasts as long as one quick grab one time then the next time it may do it until I stop and turn the car off(several minutes). Then when I start it up and drive it again it may or may not do it again.

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Year, make and model of your vehicle would help. Do you have any codes in your ABS control module ?

Posted on Jun 22, 2017


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hi. did you try to start with the orther key, all bimmer the keys has immobilizer ( key security system build in), some time it lost memory by it self.
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Sounds like a fuel problem , have you changed the fuel filter in a while ? could be the knock sensor or the knock sensor module needs to be replaced.

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I have the same problem start with my 2004 Honda Civic Si today. I checked the coolant and it looks fine. I can see it being the thermostat, but a water pump runs of a belt, doesn't it? That either seizes and stops or it works, I would think, so I'm wondering how the water pumo coild be the problem?

Posted on Nov 24, 2010

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1 Answer

When I turn left my brakes repeatedly grab and release. What could be the cause?

What type of truck is this? Faulty break lines. Too much air in brake lines. Rotors. In need of pads. Leaking calliper.

Feb 04, 2013 | Cars & Trucks

1 Answer

2002 toytota camry left front makes noise turning right

This is usually a bad bearing. The tire is tilting to one side and causing uneven wear. The shimmy is because of the slack in the bearing and the contact the front rotor is having with the brake pad. Every time the low side comes around the rotor will hit the brake pad and grab it.

You will need bearings and brake work.

Jun 10, 2012 | Cars & Trucks

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!996 Chevy Astro AWD pulls to the left when braking , I have replaced Both front calipers, rotors, and pads bled the brake lines and still it will pull to the left MOST OF THE TIME! when i least expect...

Check front end steering linkages for any play, as well as rear brakes for sticking or grabbing as well. Not unusual for a rear brake grabbing, to cause front end to want to wander.

Jun 05, 2011 | Chevrolet Astro Cars & Trucks

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The service stability system light comes on on my 2000 cadillac seville and the drivers side front brake grabs then disingages

you have a serious problem with your brakes have fixed immediatly brakes will lock up on you possible causeing accident the light is a warning light the brakes are grabeing cause there failing

Dec 28, 2010 | 2002 Cadillac Deville

1 Answer

When the anti lock brake light on my 93 lincoln town car comes on, if I am pressing on the brake at the time, makes the brakes grab. It also happens just before the light comes on. I have had the front and...

the abs light on the dash should come on when the abs is working (emergency braking)if it comes on when braking normally(gently)chances are a sensor is gone(replace in pairs,fronts & rears)
abs stops the wheels from locking up in an emergency brake situation,you will feel the grab-release,grab-release on the brake pedal......

Jul 16, 2010 | 1993 Lincoln Town Car

1 Answer

DSC light comes on when I run the A/C

It is not your A/C the problem, try this:
1- Apply the brake.
2-Open ignition to on position II engine off.
3-make sure to set A/C to low temp with A/C button off.
4-Start the car while keeping foot on the brake.
5-push A/C button on and make sure that a/c compressor comes on and wait around 10-12 second.
6-Let foot of the brake and wait ,check if DSC light comes on if not pump the brake several time with A/C compressor on if light comes on, if it dose mean your MASTER CYLINDER BRAKE SENSORS NEED CHANGING.
This was the solution for my car,I had exact the same problem.

Oct 08, 2009 | 2000 BMW 3 Series

1 Answer

Breaklights keep coming on

Hi elfiallison,
By brakelight I am going to assume you mean the warning indicator on the dash. Not sure if you are planning to do the work yourself or if you are just looking to find out the probable cause. Here are some things to look at to narrow down the exact problem but you are definitely going to need at least a front wheel brake job. I would suggest that you replace the pads, calipers and rotors when doing this since the problem has gone this far.

You most likely have a leaking front caliper that is causing these problems.
Is the brake fluid low in the master cylinder?

Remove the front tires and do a visual inspectioninspection of the braking components.
1) Check for any visable leaks, a leaking caliper will cause the brakes to grab and lock up.

2) Spin the rotors, they should spin freely without grabbing, there will be a slight drag from the brakes. Both sides should be equal. Grabbing rotors can indicate a warped rotor which can also cause the brakes to lock up.

3) Is there plenty of bake pad remaining? You need to have a minimum of 1/4" pad remaining though more is prefered. Low pads can allow the piston to come out of the caliper farther than designed and not allow the piston to retract properly.

If you would like assistance on how to do these repairs just reply to this message and I will help you out.

Good Luck

Nov 24, 2008 | 1999 GMC Suburban

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