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Let me stress I am not an Axxis pad hater, but I do have 18 years experience in BMW systems and using a compound Axxis or anything else that has not been tested with ABS and Traction control systems or met the basic TUV specifications is not something I would bank my family on. |
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Not quite zero but a big big difference just remember when your bedding in you do get some but it settles down. |
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I was going to get some, but now I think I need some more info... |
I can’t tell you if anything will be different, and that’s where the problem is for me. Brake systems need to be 100% predictable, they are designed to have very specific characteristics, Predictability is the name of the game.
In that one case where you need your ABS and Traction control (that one in 100 thousand applications of the brake) are you willing to count on a product that was not tested to perform in that application? That is the question that you need to ask yourself. My guess is that the Axxis pads will perform just fine, and many people can probably post testimonials to that fact. I know BMW owners that swear by Redline products, they use it in transmissions that require Texaco ETL 7045, Texaco ETL 8072 B, that is another area that I would never make a change, Redline is not an approved replacement for those fluids. My motto is “Trust what’s proven” |
I read ya.
I'll hang out and see if anyone has any testimonials to their performance (or lack thereof) in emergency situations. Thanks for the words of caution - I prefer not to find out the depth of the water with my pointy head! |
my 2 cents... not that it means much... sorry for the long reply...
pads and rotors all have to meet a minimum performance/safety spec or else the manufacturer will be pushed out of business from the class action lawsuits that are sure to come about from product failure... some manufacturers go through the trouble of getting TUV/DOT approvals and some don't. those are very expensive testing and certification programs. not all the pads that pagid, jurid, textar, etc manufacture are TUV certified. only the ones they market to car manufacturers to oem production are. this makes the whole car easier to homologate for certifications (TUV or otherwise...) and for sale in other countries... on axxiss deluxe performance, i can say i have driven the crap out of these at autox and track and found them to be, well.. street pads. extremely predictable, low heat tolerance (pretty much the same as oem on the x5 but a tad bit higher range), pretty much the same friction level (bite), pretty much the same density under compression hot and cold (pedal feel). and to qualify things a bit, i did drive them over the limits of what stock abs, cbc, dsc are programed for and had no issues at all. cbc and dsc operate the same way. they use the abs pumps to engage pressure on the caliper that it thinks it needs. they can do it only on one caliper if they think they need to, or any set of calipers over any set of time frame. and abs uses the same hydraulic system that your brake pedal uses when you push the brakes. so the systems are all the same. brakes are pretty simple really... (can be more complicated, but thats another discussion) the only area of concern with changing rotors and pads to something other then oem specs is being out of the parameters that the onboard computers know of to use in its calculations. but most of the pads and rotors available are all within the parameters of these systems (as proven by race cars using the stock braking systems - ie: m3 in scca T2, etc): rotor diameter, thickness, friction co-efficient, heat range, etc etc etc... I do agree with The Cleaner in that its different from what the oem system expects. however, in my experience, the differences are still within what the dsc, abs, and cbc systems are programmed to handle and you can expect them to work as intended. your mileage will vary with different production runs from the factory (depending on qc) and how you drive... like i said.. it may not mean much... just another opinion without hard scientific test results to back it up |
hayaku, thanks for the input. Your opinion means something (at least to me :) )!
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mine are being installed tomorrow.. will let u know
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The only thing I would add is that the Axxis pads originally were PBR/Repco, in Australia. TUV standards aren't a part of the Australian automotive scene, to my knowledge. Not many Australian-built vehicles are being exported to Europe, where the TUV testing standards are strong. I like the idea of using pads from a reputable manufacturer. However, I wouldn't lose any sleep over a pad not having a TUV approval, it isn't something that is required and the manufacturers of Axxis pads have obviously decided they don't need it, particularly for a pad marketed to the aftermarket. PBR was long associated with Bosch, Bendix/Mintex, and GM brake business units. I think they have the quality requirements well considered. |
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