Brakes - rear rotor rust - Kia Niro Forum
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post #1 of 14 (permalink) Old 01-30-2018, 02:31 PM Thread Starter
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Brakes - rear rotor rust

It appears to me that the rear rotors are used so little that the surface is covering with rust. I'm rather defensive driver and my 6 month Niro has only 1400 miles on it. Reading internet info rendered only info about Prius owners having similar problem. Any other Niro owners experiencing this issue. Any suggestions. One comment on Prius forum was to do some breaking in neutral to prevent regen and force car to use real brakes. Would it work with Niro?

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post #2 of 14 (permalink) Old 01-30-2018, 05:14 PM
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Just go have a drive, find a lonely road, HIT THE BRAKES, HARD!!
That should remove any rust that has started to appear...

73's de Pat KK6PD


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post #3 of 14 (permalink) Old 01-31-2018, 01:47 AM Thread Starter
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Just go have a drive, find a lonely road, HIT THE BRAKES, HARD!!
That should remove any rust that has started to appear...
Thank you.

Yes this was also mentioned on Prius forum. I will try this but also for the sake of knowledge - wondered about viability of the neutral trick. I did little experiment and pushed gear selector from D to N as car was using regen. It was apparent that the breaking force went much lower and I had to apply brakes harder to maintain deceleration. So in my opinion the trick should work here too.

Just to explain why I'm not keen on slamming my brakes HARD - as mentioned I'm not daily driver - so my skills limited - and in the winder - temps subfreezing - > This may lead to me ending up up side down in the ditch. Actually done that 40 years ago.


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post #4 of 14 (permalink) Old 02-02-2018, 01:00 AM
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Quote:
Originally Posted by Wacio View Post
Thank you.
Just to explain why I'm not keen on slamming my brakes HARD - as mentioned I'm not daily driver - so my skills limited - and in the winder - temps subfreezing - > This may lead to me ending up up side down in the ditch. Actually done that 40 years ago.
Regards.
I just find a rather deserted parking lot. Sunday AM is usually a good time! I made sure they were not snow/ice covered! Now that I live I L.A., that's a moot point!!! You don't have to be driving crazy fast, 25/30 mph will suffice, and when I say hard, not so hard you lock them up, but firm enough to get a couple of revolutions in before you stop. That usually suffices, but if not, rinse & repeat!!

73's de Pat KK6PD


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post #5 of 14 (permalink) Old 02-02-2018, 04:54 AM
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Such deserted parking lots covered with snow are also good places to get a feel for how your car handles in turns, slides, and braking safely. I did that myself recently, and am hoping for one more good winter storm so I can do it with the Niro.
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post #6 of 14 (permalink) Old 02-02-2018, 02:57 PM
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If not you can always do research on how best to drive in winter weather conditions because that's where I started and helped a lot. Speeds up the learning process beyond what most drivers are used to..
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post #7 of 14 (permalink) Old 02-03-2018, 02:08 PM Thread Starter
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Thank you for all advice.
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post #8 of 14 (permalink) Old 02-04-2018, 02:38 AM
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Didn't know this was how you remove rotor rust and I probably have pretty bad buildup considering my braking habits. I like to gently brake to a stop and never jerky.
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post #9 of 14 (permalink) Old 07-07-2018, 09:43 AM
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I think there are cleaning products out there you can use to help keep rust off the rotors as well
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post #10 of 14 (permalink) Old 05-09-2019, 04:10 PM
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This is an old thread, but I just had my first maintenance at the dealer, ~7,500 miles after 10 months, and they found that rear rotors were pitted and would eventually need to be resurfaced.
The car typically stays put in the driveway four consecutive 4 days, then I use for 3 days. That gives ample time for any rust to form and to start digging apparently.
I am just writing in case it's useful information to someone else.

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