Rusty front discs

[Martyn P]

Just had my 4th service (33K miles) and the visual inspection report said severe corrosion on the front discs but only on the inner surface.
I thought I would take a couple of photos and was shocked at how bad they were.

Has anyone else had this problem? Pads are fine and braking performance still seems OK, no juddering or squeals.

I will now get them replaced (they are the smaller 296mm discs) and was wondering what to go for.
I can either go for Alpine parts at the dealer or get my local dealer to fit aftermarket discs and pads. I see Tarox and Brembo offer direct replacements, any other options?

Any advice appreciated, horror photo below.

[Cheekyweekesy]

It looks like the inside pad is not making contact with the disc, would suggest that the calliper pistons have seized on that side.

I upgraded my 296mm discs to 320mm with this kit from Reyland Motorsport http://www.reyland.co.uk/alpine/

If uprated performance is not a concern put 296mm Brembo 'High Carbon' discs on

[Panamax]

Martyn P said:

Just had my 4th service (33K miles)

So presumably the car has an MOT? Seems odd.

[Martyn P]

Panamax said:

So presumably the car has an MOT? Seems odd.

MOT slightly out of sync, with car registration so will be in April this year. Definite advisory though!

[Martyn P]

Cheekyweekesy said:

It looks like the inside pad is not making contact with the disc, would suggest that the calliper pistons have seized on that side.

That was my suspicion as well but it is on both sides of the car.
Will definitely get callipers checked at same time.

[Life110]

Pad binding on these callipers is pretty common, I’d recommend getting the pressure washing in there regularly. Pads need removing and everything cleaning up and greasing. But you’ll need new discs.

[Martyn P]

Life110 said:

Pad binding on these callipers is pretty common, I’d recommend getting the pressure washing in there regularly. Pads need removing and everything cleaning up and greasing. But you’ll need new discs.

Thanks for the advice, I was looking at replacement pads on your website this afternoon!
I want to keep original size discs up front, should I match with EBC discs?

[SlimJim16v]

EBC discs are better than the ones you were thinking about.

[Motorsport3]

Life110 said:

Pad binding on these callipers is pretty common, I’d recommend getting the pressure washing in there regularly. Pads need removing and everything cleaning up and greasing. But you’ll need new discs.

Thanks for the sharing.
Wonder if there a telltale sign in the telemetry /dash that could be used as early indicator sign. As if the pressure build up is too low, doesn’t go above a level or otherwise?

[neil-g8km6]

Always take my cars out for a short blast to dry the brakes after a wash.

[kdempsie]

This thread has helped me solve my ‘why has the brake feel changed’ problem!

As I do from time to time I over thought the problem without starting with the basics! Finally jacked it up and had a look, my brake discs are rusty on the inner face and look like a ploughed field.

I am a bit surprised since it’s only 18 months old, with 14k miles and used every day.

Oh well, a bit of a clean and caliper service and new discs and pads will be needed. Fortunately my wife bought some Life110 pads for me for Christmas.

I’ll be paying more attention to preventative brake maintenance in future.

[ChocolateFrog]

They're impressively bad for the age and mileage.

I'm amazed you can't tell any difference.

[Martyn P]

ChocolateFrog said:

They're impressively bad for the age and mileage.

I'm amazed you can't tell any difference.

Agreed but because the pads are still in good order the main dealer says they are fine to carry on and change is not necessary.

Not noticed any difference in breaking performance (even under some heavy brake tests) so seems to be fairly cosmetic.
Will swop out for a set of Pagids before the MOT to be on the safe side.

[neon_fox]

Likely you don't need new disks, the existing ones can be skimmed to remove the corrosion.

[Martyn P]

So after a bit of research and chatting to my local garage, decided to go with EBC.
Both discs and pads are an upgrade on OEM but as I only do road and no track went for green stuff pads.
Will review the new set up in the next few days and report back but hopefully as good as if not better than standard.

Edited by Martyn P on Monday 17th February 09:55

[ChocolateFrog]

I'm a fan of Greenstuff for the road. I know some people turn their noses up at them. Biggest benefit is very little brake dust. Probably not an exaggeration to say 99% less than a typical OEM pad.

I'd be lying if I said I could tell the difference on the road but worth it for the dust benefits alone.

[Martyn P]

Thanks for feedback. Photo of grooved discs that are supposed to help a bit as well.

[John D.]

There's no dust because there's no stopping either

Don't know why you wouldn't stick with OEM over Greenstuff.

[Tye Green]

John D. said:

There's no dust because there's no stopping either

Don't know why you wouldn't stick with OEM over Greenstuff.

agreed.

OP: why do think "Both discs and pads are an upgrade on OEM" ?

[Martyn P]

Tye Green said:

agreed.

OP: why do think "Both discs and pads are an upgrade on OEM" ?

EBC offer OEM equivalent pads and discs which these are an upgrade on.
I think the original discs were Brembo, which if you look online are fairly basic, so these are an improvement in terms of material.
For the pads, speaking to my garage he personally rates them for road performance and again in terms of materials EBC consider these to be significantly better for stopping power over OEM parts.

As I say, will let you know how they work together after all beded in!