netercol said:
i was advised by a bmw workshop manager never to fit ferodo's to OEM bmw discs, because they are of a soft composition, and if you fit ferodo's chances are you will have to replace discs when you replace pads..
ATE make bmw oem pads and are apparently soft enough not to wear the discs prematurely..
My old Corolla's always eventually had shuddering brakes that used to annoy me - my very first being a Corolla 130 was particularly bad, and this was a new car at the time! Brakes were making a nasty scoring sound and stupidly (lack of experience) I let Toyota skim them. A few months later the brakes were shuddering so badly that the image in the rear view mirror would become blurred!! Okay, fair enough, very simple disk/drum brakes back then, and the disks weren't even ventilated! With my last Corolla which was a 160i I fitted Alfa disks with Ferodo Platinum pads - apart from the excessive brake dust this combination actually performed really well! Brakes had plenty of bite and seemed to be less prone to fade, and no shuddering - but then again, I was a lot more attentive to how I was treating the brakes and preventing hot spots when stopping etc.
With my Wife's car, the brakes all round were pretty severely worn already when I bought it, but still did life in them and had not triggered the wear sensors yet. Is it possible that they are the original disks that the car was sold with, at 160k km? Pads probably replaced a few times, but the disks were all pretty thin. But interestingly, despite this, the brakes felt fine, still sharp and no shuddering at all! They were still the OEM ATE disks and pads, so when I replaced them just recently I stayed with the same OEM parts - so far so good!