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Mazda3 Maintenance & Repair

4534 messages,  Last post on Dec 08, 2009 at 2:37 PM

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What is this discussion about? Mazda MAZDA3, Hatchback, Sedan

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#21 of 4534 mazdafun by wongpres Jan 22, 2004 (11:48 am)
These are all Mazda3 rotors:   LF http://www.retrostylin.com/images/mazda/FLeftclose.jpg   RF http://www.retrostylin.com/images/mazda/FRightclose.jpg   LR http://www.retrostylin.com/images/mazda/LRRim.jpg   RR http://www.retrostylin.com/images/mazda/RRRim.jpg
#22 of 4534 Re: Brake problem by bluong1 Jan 22, 2004 (12:11 pm)
One of the speculation is that the ABS-equipped cars has EBD (Electronic for distribution), and the EBD might put more brake-force on the rear, even during normal braking in order to minimize nose diving.
#23 of 4534 EBD by psymn Jan 22, 2004 (1:57 pm)
It is possible that EBD could redistribute the braking to the rear wheels, but I am still not convinced. I think that the dealer would have listed this on the sticker as a feature, and maybe even an option(more money).   Also, the front wheels are clean, and I mean shiny. I'll try to post phots of the difference later. Even if EBD activated the rears more, wouldn't the wheels show about equal amounts of dust, since normal brakes have more front than rear?   I did a check on the GA lemon law today. One major repair on the brakes or two minor repairs in 12,000 miles and I get a replacement or refund. Maybe that will be motivation for mazda to fix this problem. I have checked a couple of other owner forums and I don't think that I am the only persono with this problem.
#24 of 4534 Maybe the front and rear pads are different material by mazda6s Jan 22, 2004 (2:12 pm)
#25 of 4534 Brake Problem Issue by mazda3nc Jan 23, 2004 (6:49 am)
I just got my mazda 3 last week. I noticed the brake dust last night which is why I am researching today. I went out to the car just now after reading your post to check the rotors. The right rear brake rotor already has grooves in it and is NOT supposed to. Also the right left rotor has slight indents in it also. I have just under 500 miles on it. I'll be taking it in next week.
#26 of 4534 brakes by z71bill Jan 23, 2004 (8:37 am)
Anyone notice that the front and rear rotors are designed differently?   The front is like two discs that have been welded together - they have a space between them. This is what I consider normal - it is the way all three of my other vehicles brakes (front and rear) are designed.   The back is just one solid disc - no spacers. This may be normal - but I have never seen this design before. IMO - it would not handle heat as well as the front design - but in a normal situations I would think that more heat is generated in the front.   I only have 180 miles on my car - so it may be to soon to see any problem.   Brake dust on the wheels is normal - although it usually shows up more on the front than the rear. You will see more dust when the pads are new - but as the pads wear the dust must go somewhere.   The rear brakes do make more noise - kind of a "scrubbing" sound - when I stop - but I expect that will go away once the pads and rotor get broken in.
#27 of 4534 Rear Discs by mazda3hatch Jan 23, 2004 (8:54 am)
The difference is that the front discs are vented, the rears are not. The "vents" are the airspaces in the fronts. This is a pretty popular configuration, but nevertheless, could explain why the rears are wearing so fast, if the EBD is applying too much force there.
#28 of 4534 z71bill - Rear Discs by mazda6s Jan 23, 2004 (9:11 am)
Very few cars have ventilated discs in the rear, most are solid.
#29 of 4534 Rear discs by mazda3nc Jan 23, 2004 (9:57 am)
I am pretty sure they should not have grooves in the rotor surface brake dust or no brake dust.. That is not a good sign at all with under 500 miles on it.
#30 of 4534 Tire Warning System by jc106 Jan 23, 2004 (10:14 am)
My wife and I picked up our Mazda 3, five door on wednesday night. This morning when she started the car the Tire Pressure warning light came on. After a visual inspection revealed no gross problems she drove to work (2 miles). As she arrived at work the light went off spontaneously.   I have a feeling this system may be a service department money maker, but beyond that, any ideas why this would happen in a car with 50 miles on it? Also, it was cold overnight (0 degrees F).   Thanks

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