Hi all First post. I've got an r26 running mk3 brembo calipers/discs. Oem brembo discs and pbs pads. I've got an issue with quite bad brake judder through the steering (not pedal). It wasnt there when i got the car . I haven't used the brakes on track, just some spirited b-road driving where appropriate. They still stop fine . Just the judder doesn't feel good or inspire confidence. Anyone had anything similar on other mk2 or mk3 megane rs? What was it? The discs and pads are relatively new so dont want to replace them unless i have to. So I'm investigating possible issues first. It beats spending best part of 500quid for the discs upfront, to change them and just get the same judder. Thanks in advance. Steve
I ran PBS pads on my 225 and didn't have a problem, if you stop soon after a good hoon the pads leave a deposit on the discs, drive it around town where you don't build up too much heat and they should scrub the deposit off.
I had this issue on my Mk3 rs. Also ran pbs pads. The judder was bad until I got the car to Bedford autodrome. After a couple of quick laps the judder went away and hasn't come back. That was eighteen months ago. I think there were just some deposits on the disks or something. Hopefully yours is the same.
Thanks for the replies guys. I've not done a track day and i'm not really planning too, till maybe October. Driving at low speed, round town etc, soft braking, you wouldn't notice. Its only when they start to warm up that you notice it. I've re-bedded the pads a couple of times now - and after maybe 4/5 back to back 60-10mph stops they seem to stop wobbling but a few more days of normal use and it comes back - i think it's probably a combination now of slightly warped disc and the pads. I'm pretty decided that whilst it doesn't really impact safety or braking capability, the annoyance is enough to swap the whole lot out, but i've just been looking and for a CL RC6 pads and 2 piece discs its about £600, nearer £900 for front and rear - that's a lot of money for a road setup, a few hundred more and i can just dump the brembo's and get a big brake kit. Does anyone know anyone that supplies the mk3 discs machined for the mk2 r26? I can only find Godspeed discs to fit right now. I guess if i have to fork out the £450 for discs then i will but i'd prefer to save a bit of cash if i can. I know there will be comments about you get what you pay for etc. But, i'm only after a set up for road driving and nothing OTT right at this point. Any recommendations or worth putting in a separate thread? Thanks
Sounds like pad build up like the others have said. I’ve never been overly impressed with the feel of brembo discs and using different pads. Brembo discs and brembo Pads are fine for a road car but I’ve found their pad material to be very soft. I think their discs are designed to work well with brembo pads and not much else. I think the harder pad compounds don’t work well with the disc material. The high carbon versions they do are better but more expensive. Have you looked at the R26.R discs which have several grooves and are more suited for harder compound pads. Also, the grooves would deglaze the pads if they’ve been polished, could be a good upgrade and they’re about £190 on KTEC at the mo. That will be be my next upgrade! Sent from my iPhone using Tapatalk
I have only run High Carbon disc's, had the grooved ones but like Andrew says they kill pads in about half the time of plain HC disc's, i run Carbon Lorraine cl8's and they work very well and they haven't killed the disc's either.
but i do think its better if you have a degree of abrasion,or cooling when using track orientated pads. I had plain disks with my xp8`s and found they defiantly worked better on cross drilled oem disks. So much so i took them off,and went back to oem.
i thought the j hooks were reported to be just as bad as slotted disks for wear? obviously not then if you have used both types
It's an interesting point, never considered this. I cannot use R26 discs as i've got a mk 3 brake set up - so need to get mk3 discs and remachined for the mk2 - i'm currently looking. I think it is pad buildup. I've not had an issue after doing a few back to back runs and there is now much less wobble. I will eventually get new discs and pads - as i think that i have a bit of a warp on one disc. I have had ksport 8 pots on my last car using g-hook discs and EBC yellow stuff and didn't have an issue with them being eaten quickly. I think i'll try CL pads or the PFZ ones. They get good reviews. Not sure what discs. Ian @ Godspeed supplies G-Hook discs as standard when you buy the mk3 pacakge for the mk2.
Pfz's were really great on my 225 with the mk3 brake setup, on my mk3 they were useless, i don't know if the mk2 has better air flow around the brake rotors that helped
