Bubbles on Rubber Seals around Pistons

[DanB720]

Afternoon,

I went to change my front brake discs and pads this afternoon and noticed that the rubber seals around the pistons have some bubbles in (see picture)

I have decided not to change the pads and disc just yet as I may aswell replace all the seals at the same time.

Why would these have bubbled? Quality of Brake fluid? Or do they just do this after time?

I have asked for a price from Renault Wolverhampton but if anyone knows anywhere where they are cheap please let me know.


https://drive.google.com/file/d/0B5g4JK6HC3hqeXpLTkVoR21ETUk/view?usp=sharing


Any help would be appreciated

Thanks

 

[Stephenvenning]

Have you done any track days? They can melt and bubble after severe braking for periods of time from the heat

 

[DanB720]

No track days. I like to drive hard on the road sometimes but that's about it. aa

 

[Stephenvenning]

Oh right, if the car has had two owners the previous owner may have done some.

 

[DanB720]

When i bought the car he said he hadn't done any. Oh well either way they need replaced

 

[Stephenvenning]

Don't worry the odd track day won't harm the car at all tbh

 

[Craig211]

Would it be worth getting a complete refurb kit? Witho ring seals and new bleed nipples was looking at giving mine an overhaul and a paint after the winter, found a listing on eBay but unsure of quality as I seriously doubt they'll be brembo spares

 

[GrumpyTwig]

There was someone a while back who had exactly the same issue.

Several possibilities, one I remember was wheel cleaners or aggressive cleaners.

 

[chris1888-197]

Yeah there was a thread about this with a complete overhaul of the calipers including painting them was someone with a red 197 iiirc, il try find it and post.

 

[Foxspeed]

probably too much copperslip...