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C5 rear caliper issue.

Posted: Thu Jul 25, 2019 7:44 am
by Tinysmall
Hi all.

I have a brand new C5 500 that I've just finished running in. Yesterday (24th of July), the rear calliper seized on in the hot weather. It freed itself up as soon as it cooled down, but I'm going to strip and inspect it today.

Is this a known issue, and if so, is there a known fix? The only things I can think of it being are the piston seals or the pins. Whilst it was very hot yesterday, even a very large temperature change shouldn't cause the calliper to expand to the point of squeezing the pistons. Well, unless the brake is dragging, which is something else that I'm going to look into.

Anyway, if you have any thoughts or knowledge of this issue before I strip the calliper, I would love to hear them.

Thanks,

Matt

Re: C5 rear caliper issue.

Posted: Thu Jul 25, 2019 8:00 am
by Jamesy
Matt I would speak to the dealer on this(I assume it's still under warranty) before any spannering is done.

Re: C5 rear caliper issue.

Posted: Thu Jul 25, 2019 8:12 am
by Beezabryan
Do not tinker, do as Jamesy advises

Re: C5 rear caliper issue.

Posted: Thu Jul 25, 2019 8:24 am
by Tinysmall
Just phoned the local dealer. They're going to take a look at it.