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Suspension & Braking Forum by BimmerWorld
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Old 10-05-2016, 10:15 AM   #1
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Warped Rotor?

I just replaced the brakes with new disc and pads with Zimmerman and Textar. There is a now wobble coming from the passenger side front brake after 500k and it started after a long highway drive of stop and go. The front passenger rotor appears have a warp now and does not spin freely on one spot within the caliper. All other front suspension is new or recently replaced and demonstrated no vibration prior to long highway drive. Any explanation or suggestions? I wondered if the caliper was sticking but it appears to work well. Thanks for your input. drive safely Could these disc warp so easy?

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Old 10-05-2016, 02:31 PM   #2
mr ilia
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Everything is possible.
Take it apart, inspect, put it back together, see if it changes anything.
It is possible your brake pad is jamming against the brake disk for some reason, may some road debris made it so.
---- My Beemer history ----
2004 BMW 325i sedan - Schwarz II
1998 BMW 323i coupe - Lazurblau
2004 BMW 325ci - Sapphire Black
1991 BMW 318i sedan - Lazurblau
2001 BMW 330i sedan (Auto) - Japanrot

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Old 10-05-2016, 03:10 PM   #3
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thanks that's the plan for tomorrow.
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Old 10-05-2016, 03:10 PM   #4
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^ this, or you have some deposits on the rotor from the stop and go traffic. Take it out and do a pad seating procedure, see if it smooths out. Make sure all the lugs are torqued properly.
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Old 10-11-2016, 02:58 PM   #5
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I replaced the Zimmerman rotor that had 500k on it and put a new caliper. Complete fix.. apparently the caliper was seizing and it warped the rotor about .025 hardly detectable but enough for shitty handling and braking. Running smoothly now, it appears the caliper seized only occasionally, probably when hot.. thanks. for responses
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