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E36 General discussion and technical help for (E36) 1992-1999 3 series cars. 318, 323, 325, 328.

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Old 01-17-2006, 09:09 PM   #1
Montizzle 325i

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Exclamation Brakes

well ive sat on my ass too long and now the problem has finally reared its ugly head. My front brakes had a little metal to metal contact this afternoon, i can see the result of it forming on my rotors. i get paid friday and plan to replace them then. in the meantime, am i going to be doing any hardcore damage to my rotors between now and then? ive been downshifting alot more than normal to save what little is left of the pads. appreciate the input as always
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Old 01-17-2006, 09:21 PM   #2
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If your pads are down to metal or near it, I'ld park it until you get paid to fix it. Regardless of how "light" you apply them they still rotate so many times per feet and you're literally driving grinders not brakes. The excess heat affects: bearings, wheel seals, brake lines, calipers & brake fluid... and if it gets REALLY HOT you're risking alot more - like safety. It's a little hassle to avoid major problems.
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Old 01-17-2006, 10:20 PM   #3
Dudesky

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I'm pretty sure you'll need new rotors anyway, IIRC BMW rotors are not supposed to be resurfaced.
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Old 01-17-2006, 11:51 PM   #4
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You may not NEED to replace your rotors. You can probaly have them turned if there is enough rotor thickness. However, with metal on metal contact I would replace the rotor.

Has your Brake Pad light come on yet? If it hasn't, I would drive the car as normal. You do have 3 other wheels braking (hopefully).

As c1apton said, you're just putting extra stress on everything else now.
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Old 01-18-2006, 05:26 AM   #5
Dudesky

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Wow. If you're getting metal grinding and the brake light hasn't come on yet, I'd say there's something wrong with your pad sensors
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Old 01-18-2006, 02:37 PM   #6
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^could the pads be okay but the rotors have worn too thin?
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Old 01-18-2006, 09:44 PM   #7
RealBmw 02

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^^ that wouldn't cause metal to metal contact. Rotors are printed with a min. thickness on them and shops who do brake jobs will use a micrometer to check the thickness before and after they turn them.
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Old 01-19-2006, 01:10 PM   #8
Montizzle 325i

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thx guys. yeah i checked the rotors and those are all good not warped or nething because im experiencing no shaking or shimmying when i come to a stop. the prob is pads which is an easy fix i will be doing tomorrow.
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Old 01-21-2006, 02:32 AM   #9
xxxbimmer

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I think bmw recomends changing the rotors everytime u change the pads........this true?

or my mech tricked me in to spending more money
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Old 01-21-2006, 06:37 AM   #10
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Quote:
Originally Posted by xxxbimmer
I think bmw recomends changing the rotors everytime u change the pads........this true?

or my mech tricked me in to spending more money
No he didn't trick you, it is a good practice but in some circumstances you can have them turned. The "downside" to turning them is they might not hold up to heat and warp a couple hundred miles down the road or not last the entire duration of the new pads you put on.
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Old 01-23-2006, 03:03 AM   #11
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you can just resurface your rotors if they are thick enough... get them measured...


i replaced by backs like 6 months ago...but my fronts are ready to be taken off and replaced..i hope i can resurface my rotors...it will save a lot of money.
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