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Suspension & Braking
Have some questions about suspension or brake setups for your E46 BMW? Get all your answers here!

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Old 03-23-2013, 04:54 PM   #1
Chr325is
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Caliper Seizing?

I've been having an issue lately where I will experience violent shaking at highway speeds at random times. It doesn't happen initially, but a few minutes after driving, then will disappear, then come back, etc. After my drive today, I pulled over to feel the heat coming from both front wheels; the passenger side was much hotter than the drivers side.

I also notice that when I'm on a hill where my car would normally roll back, it stays put.

After doing a quick search on here, I've come to the conclusion that my caliper is most likely sticking. Am I wrong in this assumption? Is there anything else I need to check?
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2004 325i 5MT ZSP
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Vorsteiner CF Console, 20% Tint, VMR 18x8.5F 18x9.5R CSL Reps
MTech 2 Front Bumper, M3 Steering Wheel.


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Old 03-23-2013, 05:06 PM   #2
lszlszx
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Jack up the front of the car and spin the wheels, there is no guesswork.
Violent shaking sounds more, like suspension/drivetrain issue.
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Old 03-29-2013, 05:07 PM   #3
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Violent shaking in the steering can certainly be caused by a hung up caliper. This exact scenario happened to me a couple of months ago. Right front caliper was hanging up. Replaced both front calipers with new ones from auto zone for like $50 each. Car has been perfect since.
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Old 03-31-2013, 07:06 PM   #4
Chr325is
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Wanted to provide an update. It was indeed my caliper. I replaced it on Thursday evening and the car has been great ever since.
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2004 325i 5MT ZSP
Mods
KW V1, H&R F/R Swaybars, Rogue Engineering RSMs, Meyle HD FCABs,
M3 RTAB with Rogue Engineering Shims, UUC Motorwerks Evo3 SSK, ECIS Intake,
Vorsteiner CF Console, 20% Tint, VMR 18x8.5F 18x9.5R CSL Reps
MTech 2 Front Bumper, M3 Steering Wheel.

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Old 03-31-2013, 07:51 PM   #5
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it's nice when its an easy fix.
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Old 03-31-2013, 10:51 PM   #6
Chr325is
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Quote:
Originally Posted by 123Shift View Post
it's nice when its an easy fix.
Agreed, the job was really simple. Hardest part was jacking all four corners up to bleed the brakes afterward, which was made much easier by a power bleeder.
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2004 325i 5MT ZSP
Mods
KW V1, H&R F/R Swaybars, Rogue Engineering RSMs, Meyle HD FCABs,
M3 RTAB with Rogue Engineering Shims, UUC Motorwerks Evo3 SSK, ECIS Intake,
Vorsteiner CF Console, 20% Tint, VMR 18x8.5F 18x9.5R CSL Reps
MTech 2 Front Bumper, M3 Steering Wheel.

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Old 04-02-2013, 09:18 PM   #7
123Shift
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No doubt. I use a pneumatic bleeder i got from harbor freight for like 35 bucks. Worth every penny.
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