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Author Topic: Split brake caliper rubbber dust boot  (Read 2711 times)

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Andy A

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Split brake caliper rubbber dust boot
« on: 13 April 2017, 09:59:06 »
My son's car has both front brake caliper rubber dust boots split. Is that an MOT failure?

I've put some silicone over them for now.
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BazaJT

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Re: Split brake caliper rubbber dust boot
« Reply #1 on: 13 April 2017, 20:12:38 »
I wouldn't think the tester would check that.The main problem would be that the lack of a dust boot can lead to the brake piston seizing[even if only partially]and causing an imbalance in the braking performance.
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Nick W

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Re: Split brake caliper rubbber dust boot
« Reply #2 on: 14 April 2017, 01:21:23 »
Quote from: Andy A on 13 April 2017, 09:59:06
My son's car has both front brake caliper rubber dust boots split. Is that an MOT failure?

I've put some silicone over them for now.


If the piston seal isn't leaking, then I wouldn't worry about it. The tester isn't allowed to dismantle anything, so how will he be able to see a a split caliper boot? Unless it's hanging out or you've made it obvious with some sort of gunge.
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Andy A

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Re: Split brake caliper rubbber dust boot
« Reply #3 on: 14 April 2017, 08:03:28 »
I'll let him know it should be alright.

Thanks both.  :y
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