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Last post on Sep 24, 2012 at 10:58 AM
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Hyundai Sonata, Brakes, Sedan
#77 of 311 2007 Sonata Brakes
by abramsmm
Sep 02, 2009 (2:47 pm)
You are not alone regarding rear brakes on 2007 Hyundai Sonata. I bought the car with 31K miles and now it has 53K miles. The brakes never made any noise and never pulled the car to the side, but I always thought the car took too long to stop. Therefore, I had the brakes checked often, and was always told 50-70% of the pad life was left. Both Hyundai and independent shops gave same response.
Today I had tires rotated and was informed that one side was almost down to metal because the calliper had seized (which suddenly caused one pad to wear very quickly). I received ridiculous quotes in the range of $600- $750 from the dealer and a large independent, to replace all the hardware on both rear wheels.
I went to a smaller independent who offered a more reasonable quote of $300. He then realized that the other side had frozen pistons. Essentially the front brakes were stopping the car with no help from the rears.
Once repaired, I stepped on the brakes and almost went through the windshield..... amazing what 4 brakes can do. My assumption is that they were never right in the time I owned the car. Hopefully this was repaired correctly, and not an indication of what I have to look forward to as the car ages and accumulates miles.
By the way, other than brakes, the car has been OK but not great. Issues with air bag system and some interior parts, etc. coverred by warranty.
#78 of 311 Re: 2007 Sonata Brakes [abramsmm]
by haidong
Sep 03, 2009 (5:57 am)
Thanks your post.
It explains a lot.
#79 of 311 Re: 2007 Sonata Brakes [abramsmm]
by targettuning
Sep 03, 2009 (6:12 am)
Stuck or frozen calipers are almost the only way brake pads can suddenly go from 70% pad material to near zero in a very short time. In all my answering posts to one of the others here who complained about just this I used that caveat...that is, the question was asked "did your calipers stick" For the record, stuck calipers are not unheard of in any brand of car. The question to which I have no answer is "do Hyundai calipers stick more frequently than most?" Yes, we have a hand-full of complainers here but overall the number is miniscule. And yes genuine Hyundai replacement parts are expensive as compared to aftermarket offshore (Chinese? Indian? etc) manufacturered parts. As always the question remains are they "as good as" as well as cheaper? Personally I think not.
#80 of 311 Re: 2007 Sonata rear brake issue [targettuning]
by haidong
Sep 03, 2009 (9:05 am)
You know this is not one person and you said you are not working for Hyundai
People could read your post as you are expert, you do have free time on the forum everyday and education people. This is the owner responsibility to do bla..bla..
People need to speak out.
#81 of 311 Another one
by etoyoc
Sep 04, 2009 (8:47 am)
My daughter came home last nite telling me her 07 Sonata with 18,000 miles was making a weird noise from the rear end. I drove it and the driver's side brake is hung up. Called the dealer, first thing the service manager said was that was a maintenance problem and not a warranty item. I am 52 yrs old and have owned dozens of cars with disc brakes without this ever happening. Don't tell me it's not poor design. Can hardly
wait to see what they want to sock me as I'm sure it's cooked the brakes as she drove home about 10 miles with the brake dragging.
#82 of 311 Re: Another one [etoyoc]
by mfpatterson
Sep 04, 2009 (9:06 am)
You just hit the nail on the head! My friend and I did the brakes on my 08 Sonata and the drivers side rear, inner side, after 24,000 miles was paper thin. The pads had hung up and were always touching the rotor, the rotor also needs to be replaced. I plan on changing the brake hardware too.
Thinking back I do recall a smell from the rear brakes each time I got home, should have checked them!
#83 of 311 Re: Another one [etoyoc]
by etoyoc
Sep 06, 2009 (7:00 pm)
Dealer called back and said the pads were gone and backing plate was rubbing on the rotor. Caused by stuck caliper. Said I was "lucky" because it did not gouge the rotors so they could resurface them and replace pads for "only" $150. Right, I feel lucky. Service Mgr said this was a maintenance item on Sonatas. I asked her to show me where it was indicated in the owners manual that this was a maintenance item, of course it isn't. She said I should have them do "brake maintenance" (for $50) approx every 20,000 miles to remove corrosion and brake dust and lube the pad slides. This is poor design andnothing but. Isn't the NHTSA interested in brakes prone to fail such as these on Sonatas? Sounds like a recall is in order here....
#84 of 311 Re: 2007 Sonata rear brake issue [haidong]
by targettuning
Sep 08, 2009 (7:13 am)
I am NOT working for Hyundai in any capacity. As far as being an expert...I am not, but do have some common sense. As for the rest of your post I do not know what you are talking about!
#85 of 311 Re: Another one [etoyoc]
by targettuning
Sep 08, 2009 (7:25 am)
Check around, there is one basic design for disc brake calipers....THEY ARE ALL BASICALLY THE SAME. Some expensive luxury cars and a lot of sports cars have a 4 piston caliper but no common car has them. If there really is a "design flaw" on late model Sonatas I am unaware of it (that is, nothing I have read in any trade publication says so) despite some here insisting there is. If you feel so strongly there is a problem send your concerns to the NHTSA complaint site. Oh yeah, I still do not work for Hyundai or in the automobile industry. I am an electronics engineer working for the ARMY. Just because I am interested in all things automotive doesn't mean I work there.
#86 of 311 Hyundai rear brakes
by iggypop
Sep 09, 2009 (6:26 am)
I have the same problem as as lot of other Sonata car owners with the back brakes.
I changed the pads and rotors and within a month I was getting a high pitch squeal and abnormal wear. I changed the brake pads to a better type and still get noise.
The stainless holders for these brakes seems VERY tight and does not let the pads loose.
Has anyone removed these holders or modified the pads to fit better?
Thanks