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Mazda CX-9 Maintenance and Repair

89 messages,  Last post on Sep 21, 2009 at 8:48 AM

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#84 of 89 Manually invoke AWD in CX9 by rpoddar Sep 19, 2009 (10:56 pm)
Does anyone know how to manually turn on AWD in a CX9 (with AWD of course!). I have an issue with the CX9 rolling backwards on a steep uphill gradient when I take my foot off the brake (in San Francisco), and was thinking that this may solve the problem. Replies to this message: ceric (Sep 20, 2009 8:11 pm) epicard (Sep 20, 2009 9:33 pm) rpoddar (Sep 20, 2009 10:12 pm)
#85 of 89 Re: Manually invoke AWD in CX9 [rpoddar] by ceric Sep 20, 2009 (8:11 pm)
Replying to: rpoddar (Sep 19, 2009 10:56 pm) I know SF. You need better tires, not AWD. The OE tires are lousy.
#86 of 89 Re: Manually invoke AWD in CX9 [rpoddar] by epicard Sep 20, 2009 (9:33 pm)
Replying to: rpoddar (Sep 19, 2009 10:56 pm) I don't think the problem is either AWD or your tires, it's compression. In automatic mode, the compression on the engine is pretty soft - and you can roll backwards quite a ways. I complained about this to my dealer's service people, and they couldn't offer any alternative other than to switch into the 'manual' mode, where the compression on the engine is quite a bit better. Replies to this message: rpoddar (Sep 20, 2009 10:12 pm)
#87 of 89 Re: Manually invoke AWD in CX9 [epicard] by rpoddar Sep 20, 2009 (10:12 pm)
Replying to: epicard (Sep 20, 2009 9:33 pm) Thanks for the info, all! Overall, we are thrilled with our CX9. Just put 200 miles on it today driving back and forth to/from San Jose and Santa Rosa.
#88 of 89 Lousy rotors? by eua Sep 21, 2009 (5:49 am)
After I bought my cx-9 I had read couple complains from different people that there is significant vibration after applying the brakes at the speed 40- 50 mph. Well at 11K miles it happened to my cx-9. I searched online and saw many people have this problem. The reason is in the weak rotors that have to be resurfaced (cut) to remove the issue. Frankly speaking I have very bad experience with my dealership. It's all the time hostile - when I need a help they blame me that is my fault and then accept the problem. Can I install aftermarket rotors at different repair shop (not Mazda) and keep the warranty on brakes? Replies to this message: ceric (Sep 21, 2009 8:48 am)
#89 of 89 Re: Lousy rotors? [eua] by ceric Sep 21, 2009 (8:48 am)
Replying to: eua (Sep 21, 2009 5:49 am) I think "warped rotor" is a wrong concept. The vibration of pad on rotor is caused by uneven surface of the rotor. However, the unevenness was not because the rotor was "warped". It is because brake dust accumulate on the rotors. It started small (maybe from rust), and accumulated over time. i.e. the reason rotor "warps" is because it is "hard", not because it is "soft". German vehicle (BMW, for example) uses soft steel in rotors. The rotors wear with pads together. They have to be replaced together ($$$ to you). The soft-steel rotor does not "warped" because they are "soft".   Rotor "warping" comes with hard-steel rotors (so it lasts several pads, not just one). It happened to all other vehicles I have owned (other than the bimmer). So far, my CX9 is fine for 20K miles. Once in a while, a hard braking (safely done) can alleviate accumulation of brake dust on rotors.   Your brake (inc. pads/rotors) is only covered by 1yr/12K miles from factory.

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