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When do I change the brake discs?

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Old Nov 28, 2017 | 04:32 AM
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C204
When do I change the brake discs?
I have to change my brake pads because I got a warning about it but how do I know when to change the brake disks? Is there some kind of warning for the discs too or there is another way to tell they have to be changed?
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Old Nov 28, 2017 | 04:58 AM
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W204 C220CDI 2011
You change them if they are excessively scored or if they are below minimum thickness which is marked on the disc hub.
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Old Nov 28, 2017 | 05:20 AM
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There is a 1-3 milimeters edge but I do not see any markers or signs showing a minimum thickness. What do I have to look for? How is it marked?
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Old Nov 28, 2017 | 05:22 AM
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W204 C220CDI 2011
It is usually marked on the part of the disc where the wheel mounts.
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