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Discussion Starter #1
Elantra Rear Shock Absorbers

My 2012 Elantra with 10,000 km sounded like the rear suspension was bottoming out with a loud clunk whenever I went over a bad bump or heave in the road. It was the right rear shock, which was replaced under warranty. The car handled well so it wasn't as if the damping had disappeared. About 500 km later the left rear shock had to be replaced under warranty as the loud clunking as if the suspension was bottoming out returned. I'm not sure of the shock manufacturer Hyundai is using, but they obviously had/have a quality control problem or the shocks just aren't up to the job. I live in the country and drive a lot of secondary roads, but have never had shocks go like this before. Something in the internal hydraulic value circuit is going wrong. Hopefully the new replacements last longer or I may have to go aftermarket.
 

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I am hoping for KYB to start producing one. It also could be that it already exist, just need to cross reference it for us.
 

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Both my rear shocks are being replaced on Thursday this week.
Same problem , they sound like they are bottoming out when going over slight dips in road.
Interestingly the shocks were backordered for two weeks , the dealer eventually told us that his dealership has replaced six sets of Elantra shocks so far that is why the delay. Shortage of them in Canada
So yes it must be a bad run of bad parts .
 

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I had the exact same problem as the OP... 5800kms on the car. Had my shocks replaced yesterday and what a huge difference. I believe the rear shocks were defective from day one and progressively got worse. The left rear shock was leaking, the right rear shock was not leaking but was defective as well. After removing the right rear shock the mechanic showed me that it compressed somewhat normally when pushed about half way in and then no resistance after that so it would bottom out.

With both new rear shocks installed, the car now corners very well (even when pushed) while keeping the rear end somewhat glued to the pavement as opposed to being totally unpredictable with the faulty ones. When driving over man hole covers or cracks in the road, the car doesn't twitch sideways at all or bottom out anymore. On rural roads or highways, the car is much more stable and there is no longer a need to constantly correct the steering wheel from the back of the car feeling loose over bumps.

Definitely a bad run of shocks, let's just hope this doesn't reoccur with the new set they installed.

All in all, I was really happy with the service department. I feel they went the extra mile to ensure my problem got resolved.
 

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Would this problem be responsible for suspension noise? I think my Elantra is noisy on bad winter roads (potholes, cracks etc.) I don't remember my car to be that loud last winter........on warmer days the noise is minimal though......
 

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Would this problem be responsible for suspension noise? I think my Elantra is noisy on bad winter roads (potholes, cracks etc.) I don't remember my car to be that loud last winter........on warmer days the noise is minimal though......
My rear suspension wasn't noisy until it bottomed out... Then you would hear a loud bang. When it didn't bang/bottom out, the rear of the car was floaty but no squeaks or weird noises.
The only thing I can suggest is if you feel the car is not handling like it is supposed to or making weird noises, take it in and have the them inspect it.
 

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Interesting. This could be the cause of the suspension issues people are having such as rear end hop. There might eventually be a TSB on this.
 

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I have the same problem with right shock i go to the dealer and he order me a new right shock for monday next week...the guy at the service told me i'm the first one with this problem!
 

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Tech beside me had a right rear shock... what we found is the shock would slide freely, then solid and resistance as oil hit valving to restrict piston movement.. suspect tube is short of oil,, and when it hits air, the piston travel free, then when oil hit valving (restriction), THUMP.. momemtary hydro lock, then shock move again with resistance as oil pass through valving.
 

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Interesting. This could be the cause of the suspension issues people are having such as rear end hop. There might eventually be a TSB on this.
Wishful thinking I suspect. Much like the TSB where they reprogram the car to get 40 mpg all the time, even while it is parked in your garage. ^_^
 

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See if anyone knows the answer to this but Monroe has a listing for our cars. It's said to be superior compared to stock units. What's odd is that most sites list this as the correct shock but Amazon said it's not. Go to the Monroe site and even they said it's the correct part.
Monroe part #5622

What's interesting is this part also is good for the 2007 models and up. Maybe someone here who works at the dealership or a parts store might be able to check if they do in fact use the same shocks. I personally see it as being somewhat misinformed as the 2011s up are a total redesign but I could be wrong and they could in fact, use the same shock. If so, that'll mean that the KYBs sold for the earlier models might work. That would be great as I will ditch the stockers as soon as I find nice replacements.
 

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Different part number called out in my price guide between the HD and MD Elantra on rear
 

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Interesting. This could be the cause of the suspension issues people are having such as rear end hop. There might eventually be a TSB on this.
I no longer have any rear end hop after having both rear shocks replaced. I have to agree with Don67 though cause I doubt they will ever put out a TSB on this.
 

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Different part number called out in my price guide between the HD and MD Elantra on rear
Thanks! I had a feeling it was something worth confirming.

I'll definitely be contacting Monroe and/or KYB.
 

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We have been driving our 2012 Elantra for a few days now after last week they replaced under warranty the faulty rear shocks.
The car no longer bottoms out like it did before on simple dips in road.

I also suspect these faulty shocks might of been a partial factor in the winter driving problems we had with this car where rear end seemed loose .
I think the lousey shocks and the electric steering combined to make it a poor handler.

Hopefully this will help improve that somewhat.
 

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Like it was built for my car (color), I installed KYB's rear shocks. I will be getting a full drive later but a short test drive made me happy. It's noticably firmer with more feedback. Road noise over bumps were reduced with better control. In a day or so I'll be giving a better report but so far I'm very pleased.



Shocks side by side


Stock


KYB


Some pics and tips I have hiding in these pages
http://www.hyundai-forums.com/1160286-post31.html

If given the time, others also have posted their tricks and tips.
 
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