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Hyundai Sonata Brakes



  • ayeuayeu Posts: 41
    Chips - Your dealer needs to grind more play into the slides, i.e., open them up.Also they should lube the slides. My dealer did that when my '07 Sonata had brake problems at 11 months/21,000 miles. I now have 62,000 miles on my rear brakes and 83,000 on the original fronts and still have 50% on both. I am considering a 2011 and he told me they have the same problems, so to bring it in during the first year and he'd do the same thing.
    You guys most live in Northern states where it snows alot. We don't have that issue with these cars down in the Southern states.
  • Yep. Live in Ohio. But, still, car bodies and under-carriages have been improved/treated over the years so that they no longer rust out like they did decades ago. I would expect that brakes should last longer than 25K miles even if the car has to drive where there's snow and road treatments. It's not like snow in the Northern US should be news to any car manufacturers.
  • backybacky Twin CitiesPosts: 18,628
    Brakes on my 2007 with 43k miles still good. Has been in WI and MN all its life. I will ask at the 45k service, due in December, about lubing those sliders. Whatever was done by the first owner (lessor) seems to have worked. I bought the car last Thanksgiving.
  • dallasdude1dallasdude1 Posts: 1,139
    I've been reading all about the brake problems here. I currently have 105K 05 Sonata and am doing the front brakes (for the first time). One of the slides has failed. Are they pressed in? Or is there some odd method of getting these into the caliper mounting housing? I did notice that one pad wore more on this caliper. The other caliper seemed fine as its pads wore normally. Perhaps these and the lubricant used in them freezing be part of the brake problems in the north? I'm in Texas and have been fortunate so far.
  • guttzguttz Posts: 2
    I went to dealership yesterday for an oil change and dealer suggested that I change my 2007 Sonta's brake pads immediately. Is it advisable to get brake pads changed outside without Hyundai's OEM parts? Or are OEM parts the best thing to go with?
    Is it also normal for Sonta's rear brake pads to wear out lot earlier than front brake pads?

    Thanks in advance.
  • ayeuayeu Posts: 41
    It seems to be the case that the rear brakes wear first. Mine did. I had my rear brakes replaced at 21K and they also opened up the slides a little (read the thread). I now have 84,000 on my original front and 63,000 on the rear. Both still have 50% lining left but I do a lot of highway driving. As far as aftermarket brakes, I say go for it. I might replace all rotors and pads before winter just to stay ahead of the game. I would do it myself with aftermarket parts.
    Good luck!
  • guttzguttz Posts: 2
    edited October 2010
    Additional notes to my previous post:
    So after talking to my regular mechanic, it is pretty much confirmed that it seems to be Hyundai's fault. Rear rotors were way hotter than front rotors after less than 3 miles of driving. I am in AZ so no weather related problems here. From the last brake inspection around 3 months ago, rear brakes were totally worn out while front brakes were minimally worn. That is that rear brake pads were gone from 50% to 99% in 3 months period. Total miles on the car are at 64k and total miles for rear brakes to go from 50% to 99% gone are around 4k.
    Possible reasons (pretty much all seem to have been pointed out here before):
    1) drove with parking brakes on (I have never used parking brakes before so that is ruled out. But Hyundai had done recall work on rear brakes and it is possible that Hyundai mechanic did not complete work properly).
    2) hydraulic issues with rear brakes
    3) malfunctioning Electronic Stability Control resulting in constant application of rear brakes.
  • Has anyone done a front rotor change on an '07 style Sonata (GLS)? The pads themselves are simple to do, but when you take off the caliper, there's still the caliper harness (or whatever it's called) left on the assembly, which I assume makes the rotor impossible to get off. Obviously, it's possible to change the rotor; I just can't find an easy way to do it. Suggestions?
  • ayeuayeu Posts: 41
    You're referring to the pad bracket. On all cars it has to be removed before the rotor can be removed. On the Sonata, though, one of the bolts is dual purpose, i.e. it is longer than normal because it has to go through a suspension component. No problem removing it, just remove the two pad bracket bolts and take the bracket off. In my opinion taking it off makes it easier to clean it, lube it and put the pads in anyway. Also as on all cars, make sure you have the caliper held in place so that no pressure is on the brake line!
  • ayeuayeu Posts: 41
    To all who have posted comments about Sonata brakes. I just bought a 2011 Sonata Limited. What a nice car! Hyundai has given their dealers more flexibility in dealing with brake issues.
  • I have been reading with great interest all of your helpful posts. I had my 2006 Sonata LX (approx. 53K miles) inspected less than 2 weeks ago, and it passed just fine. Yesterday I heard an awful noise from the rear passenger side when braking. It doesn't happen every time I brake, but when it does it's just awful. I took it to my mechanic who said the brake pad on that side is worn down and has apparently gouged the rotor a bit. How could that happen in one day? It never made noise before. and, the one on the other side is okay, he said. He recommends replacing pads and rotors on both sides, at a cost of "about" $300.

    My question is....not knowing much about cars, and not being able to do the work myself, does this sound like a good solution at a good price? Or, should I just have him replace the pad on the one side, and turn the rotor? And, should I have him use different pads than the original ones? and is there anything else I haven't thought of to ask?
    (Thanks to all of you that I am even able to ask these questions! I have learned so much today!)
  • backybacky Twin CitiesPosts: 18,628
    That price sounds pretty reasonable IMO. How well do you know and trust this mechanic? If you have had good experience with him, I would go with his advice and replace both sides.

    FWIW... who inspected the car less than 2 weeks ago? If I were you, I'd go back to them and explain what happened, and ask for some compensation, i.e. if they had caught the brake problem then, you would not need new rotors today.
  • ayeuayeu Posts: 41
    I don't know what state you're in with respect to inspection, but I used to live in PA. I don't recall them pulling all four wheels, only one front and rear, I believe. With disc brakes you can see the amount of remaining brake pad without removing the wheel, so a stuck caliper would not have necessarily been spotted. Don't ever replace only one side. With 53,000 miles are on the brakes I'd replace pads and rotors. I would recommend new rotors because if you turn the old ones, they will be thinner and heat build up could make them more susceptible to warpage than newer, thicker rotors.
  • I'm in NY, and they only check the front brakes. Doesn't make sense to me, but that's what they said.
    Thanks everyone for your input!
  • jayessjayess Posts: 59
    edited November 2010
    If the car has 'only' 53K miles, and you are the original owner, at least the rotors are covered under the original mfg.s warranty to 60K. There's a specific warranty coverage booklet detailing this (I have it in a .pdf file but don't know how to send it!!).
    Additionally, if you take it to the dealer for inspection or even just an oil chg. they should be on the lookout and recommend what you might need - whether you need it or not - and in 4 season territory brakes would seem a sure bet.
    I had a similar problem with the rear brakes/rotors on my 2007, my dealer service guy who knows that I'm current on Sonata 'issues' replaced the rear brakes twic because of the brake slide issue that cut into the rotors. They just did my 1st front brake job at 49K - which I knew I needed - their standard 'brake service' includes pads, resurfacing rotors, adjusting calipers clean/lube slides for 210$ minus the 20% off web coupon - very fair price I think.
  • backybacky Twin CitiesPosts: 18,628
    Can you please do this for us? Open the .pdf document in Adobe Reader, select the text in the document that pertains to rotors, copy it, and paste it into a post here? This is the first I have heard about Hyundai covering a wear item such as rotors outside the 1 year/12k miles "adjustment" warranty, except for the Equus. This would be very useful information for Sonata owners. Thanks!
  • Jayess, I would also appreciate that pdf document if you could post it here. Where did you find a 20% off web coupon?
  • jayessjayess Posts: 59
    edited November 2010
    Try this:

    If it doesn't open I can save it to an email attachment so if t ou want to email me at lionhouse at verizon dot net I can send it to you and perhaps you'll know how to do this.
    sonatasue the coupon was on my dealer's website, am in Pittsburgh
  • I read the pdf file, what a joke.
    The problem we are getting is premature wearing of the pads and they say that is not covered, and when the worn out pads cut the rotors, the owner is not doing the proper repairs.
    I remove the brakes and the brackets each time I do tire rotation, regrease the pins and clean all the rust from the pads and brackets so the pads slide easily, about each 5000 miles.
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