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      12-06-2023, 07:43 PM   #53
Sracs
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Drives: 2006 BMW 325i
Join Date: Nov 2010
Location: Canada

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Any updates?

Has anyone nailed down any more ideas for where this judder might come from?

It's a big problem on my 2006 325i - and has been for years. Every time I replace pads and rotors, braking is great. Then about 1000 miles later, I get a slight shake while braking that builds over the next 1K miles until it's a fairly violent judder that appears at certain, but not, all speeds and times.

It's super weird though - the judder is ONLY during braking, but the strength and severity seems variable. Sometimes if I'm coming from to a stop from highway speed, there's violent shaking from 60-20 - then goes away from 20-0. Other times, at lower speeds, it's there from 40-0 all the way. How hard I brake doesn't seem to affect things much.

My indy's stumped, and we've tried different brands of pads and rotors, but it always comes back. I've tried babying new pads and rotors, and I haven't tracked the car in years...

I know the car's old, but it's a disconcerting problem...
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