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BMW 3-Series (E90 E92) Forum
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Single Piston Caliper - design flawed?
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09-22-2021, 01:26 AM | #23 |
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Cool! Sounds like a good gig. I agree that BMWs are generally well equipped for stopping, and an emergency stop from 155mph is a legitimate possibility, not just a 'what if...?' consideration.
I'm still not convinced though that using the brakes hard would help the OP. Especially given my experience there. |
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09-22-2021, 03:44 AM | #24 |
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Drives: e92 335iA
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I have similar experience with my or in-house vehicles... just drive the car regularly&harder (on brakes) and problem is solved... it took my wife one year to degrade the rear brakes like this on her Mercedes, before they were brand new alike...
E-vehicles are facing these issues nowadays as the need to brake is even fewer due to the fact that recuperation forces slow down the car by themselves.
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"If everything seems under control, you're not going fast enough.” Mario Andretti
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09-22-2021, 07:26 AM | #25 | |
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Quote:
For example, when I was in this business we would see all kind of oil related issues in vehicles like BMW as engine design requires high temperatures, longer drives etc. That is what I meant by these vehicles being designed for performance. Driving it like Prius might actually creat and it create issues. |
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09-22-2021, 07:51 AM | #26 | |
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Quote:
The steps to try and remediate the issue should go from simplest to most complex: - Turn rotors (can be done for $15 per rotor at O'Relly) - Clean or replace guide pins, replace guide pin bushings, clean and lubricate caliper carrier and pad riding surfaces - Inspect caliper boots. Replace caliper if torn. - Lightly sand brake pads and re-bed brakes (non-ceramic only, don't try to do a re-bed with ceramic) - Drive for 3-4 months and check again - If no improvement: replace calipers with rebuilt ($50-$75 each) and bleed brakes - If still no improvement: replace brake pads and rotors with a quality brand; highly recommend using coated rotors - If still no improvement: you really must do basically zero braking, or you've got some sort of rare brake pressure proportioning issue where your rear brakes are not producing enough brake pressure. I'd run some diagnostics on your DSC module at that point. Last edited by Welcome to NBA Jam; 09-22-2021 at 08:05 AM.. |
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