Author Topic: Uneven ride height. Rear left side is hanging.  (Read 323 times)

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  • dk Denmark
    Danmark
Uneven ride height. Rear left side is hanging.
« October 13, 2018, 15:10:47 »
Hello all!

My 2009 i30 1.6 crdi, has yet another problem.  :blubber:

The left rear corner of the car was hanging about 2-3 cm. (ca. 1 inch) lower than the right side.

Therefore I replaced both rear coil springs and shocks, and got the car aligned. Now the car drives smooth, straight and i can't feel anything wrong with it. After I replaced the springs and coils, the car seemed to be at even high in the rear. After about 1 week, the car started sagging again.

Today I tore the whole thing apart again, nothing unusual to notice. Everything seems fine and in good working condition.

If i look under the car, it is clear to see, that the left spring seems more compressed than the right one.

Do you guys have any suggestions to what might by wrong?


  • i30 1.6 crdi 2009 90 hp.

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  • au Australia
    Ipswich
Re: Uneven ride height. Rear left side is hanging.
« Reply #1 : October 13, 2018, 15:21:04 »
Hello all!

My 2009 i30 1.6 crdi, has yet another problem.  :blubber:

The left rear corner of the car was hanging about 2-3 cm. (ca. 1 inch) lower than the right side.

Therefore I replaced both rear coil springs and shocks, and got the car aligned. Now the car drives smooth, straight and i can't feel anything wrong with it. After I replaced the springs and coils, the car seemed to be at even high in the rear. After about 1 week, the car started sagging again.

Today I tore the whole thing apart again, nothing unusual to notice. Everything seems fine and in good working condition.

If i look under the car, it is clear to see, that the left spring seems more compressed than the right one.

Do you guys have any suggestions to what might by wrong?
No but I think we'd love some images of the whole set up . Seems somewhat impossible if it's all new springs and shocks
  • 2008 i30 SLX CRDi Auto, 2010 i30CW SLX CRDi Auto. 2008 i30 CRDi SX manual, Welly

Re: Uneven ride height. Rear left side is hanging.
« Reply #2 : October 13, 2018, 15:30:48 »
I know. It is strange. Can it be one of the lower arms / components, who is at fault?
  • i30 1.6 crdi 2009 90 hp.

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  • au Australia
    Ipswich
Re: Uneven ride height. Rear left side is hanging.
« Reply #3 : October 13, 2018, 15:48:05 »
I know. It is strange. Can it be one of the lower arms / components, who is at fault?
Honestly without seeing something I don't know what to think. If an arm or bushing was bad surely there's be other issues with that like noise, movement and alignment issues plus whoever did the work you would think they would investigate the original problem first before replacing those parts unless you just did it hoping.

initially I was expecting a broken spring ,
  • 2008 i30 SLX CRDi Auto, 2010 i30CW SLX CRDi Auto. 2008 i30 CRDi SX manual, Welly

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  • au Australia
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Re: Uneven ride height. Rear left side is hanging.
« Reply #4 : October 13, 2018, 18:46:14 »
The only thing that comes to mind without any clues is that perhaps the rear (or even front) right suspension is somehow binding, forcing added pressure on the left rear.
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Re: Uneven ride height. Rear left side is hanging.
« Reply #5 : October 13, 2018, 18:56:26 »
Could the camber of the roads be causing the a problem with the set up plus pot holes?



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  • au Australia
    Samford Valley
Re: Uneven ride height. Rear left side is hanging.
« Reply #6 : October 13, 2018, 21:42:26 »
I can only think of wrong mix of springs or that one is faulty and has lost some tension.

have you tried swapping them to the opposite side?

TIP: Place car clear of pot holes when measuring height.  :D






  • Every FD model; BMW Z3 M; Mitzi Magna(mobile office)

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  • au Australia
    Brisbane
Re: Uneven ride height. Rear left side is hanging.
« Reply #7 : October 13, 2018, 22:12:37 »
Springs are typically marked LH/RH.

Have then been fitted to the wrong side ?
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  • au Australia
    Ipswich
Re: Uneven ride height. Rear left side is hanging.
« Reply #8 : October 13, 2018, 22:56:47 »
Springs are typically marked LH/RH.

Have then been fitted to the wrong side ?
How did you come up with that one? OEM springs front have same part number, OEM springs rear have same number so not sided.

Rear shocks not sided , same part number, rear mounts same number not sided

 macpherson struts are sided, struts mounts are not, same part number

Do you have any examples of this?

I can understand a NASCAR having a biased setup on one side for ovals.
  • 2008 i30 SLX CRDi Auto, 2010 i30CW SLX CRDi Auto. 2008 i30 CRDi SX manual, Welly

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  • au Australia
    Samford Valley
Re: Uneven ride height. Rear left side is hanging.
« Reply #9 : October 13, 2018, 23:36:22 »
I can understand a NASCAR having a biased setup on one side for ovals.

Lester sort of said that; the i30 DANISHCAR

Could the camber of the roads be causing the problem ?

  • Every FD model; BMW Z3 M; Mitzi Magna(mobile office)

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  • au Australia
    Ipswich
Re: Uneven ride height. Rear left side is hanging.
« Reply #10 : October 13, 2018, 23:38:36 »
I can understand a NASCAR having a biased setup on one side for ovals.

Lester sort of said that; the i30 DANISHCAR

Could the camber of the roads be causing the problem ?

So wish we had a visual
  • 2008 i30 SLX CRDi Auto, 2010 i30CW SLX CRDi Auto. 2008 i30 CRDi SX manual, Welly

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  • au Australia
    Samford Valley
Re: Uneven ride height. Rear left side is hanging.
« Reply #11 : October 13, 2018, 23:42:23 »
I can understand a NASCAR having a biased setup on one side for ovals.

Lester sort of said that; the i30 DANISHCAR

Could the camber of the roads be causing the problem ?

So wish we had a visual

 :scared: Of Lester?  :faint:
  • Every FD model; BMW Z3 M; Mitzi Magna(mobile office)

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  • au Australia
    Ipswich
Re: Uneven ride height. Rear left side is hanging.
« Reply #12 : October 13, 2018, 23:56:56 »
I can understand a NASCAR having a biased setup on one side for ovals.

Lester sort of said that; the i30 DANISHCAR

Could the camber of the roads be causing the problem ?

So wish we had a visual

 :scared: Of Lester?  :faint:
have you taken your pills today?
  • 2008 i30 SLX CRDi Auto, 2010 i30CW SLX CRDi Auto. 2008 i30 CRDi SX manual, Welly

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  • au Australia
    Perth
  • 2013 i30 GDi SE 3dr, 1.6 Ltr Petrol, 6 Spd-M
Re: Uneven ride height. Rear left side is hanging.
« Reply #13 : October 14, 2018, 00:04:40 »
I suggest moving the fat passenger from the rear of vehicle :P :snigger:

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  • au Australia
    Ipswich
Re: Uneven ride height. Rear left side is hanging.
« Reply #14 : October 14, 2018, 00:32:46 »
I suggest moving the fat passenger from the rear of vehicle :P :snigger:
You're  rude. You know how much effort I've made not to ask the obvious about ballast and it's distribution :head_butt:
  • 2008 i30 SLX CRDi Auto, 2010 i30CW SLX CRDi Auto. 2008 i30 CRDi SX manual, Welly

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  • au Australia
    Perth
  • 2013 i30 GDi SE 3dr, 1.6 Ltr Petrol, 6 Spd-M
Re: Uneven ride height. Rear left side is hanging.
« Reply #15 : October 14, 2018, 00:37:09 »
 :D :goodjob2:

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  • au Australia
    Brisbane
Re: Uneven ride height. Rear left side is hanging.
« Reply #16 : October 14, 2018, 00:48:47 »
Springs are typically marked LH/RH.

Have then been fitted to the wrong side ?
How did you come up with that one? OEM springs front have same part number, OEM springs rear have same number so not sided.

Rear shocks not sided , same part number, rear mounts same number not sided

 macpherson struts are sided, struts mounts are not, same part number

Do you have any examples of this?



Pretty much every after market spring ive ever fitted, typically a vehicle will sit higher on the drivers side.
  • 2017 Active PD 2.0, Manual, Black

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  • au Australia
    Ipswich
Re: Uneven ride height. Rear left side is hanging.
« Reply #17 : October 14, 2018, 01:13:38 »
Springs are typically marked LH/RH.

Have then been fitted to the wrong side ?
How did you come up with that one? OEM springs front have same part number, OEM springs rear have same number so not sided.

Rear shocks not sided , same part number, rear mounts same number not sided

 macpherson struts are sided, struts mounts are not, same part number

Do you have any examples of this?



Pretty much every after market spring ive ever fitted, typically a vehicle will sit higher on the drivers side.
Must be  specialised applications then. Sounds expensive too.
  • 2008 i30 SLX CRDi Auto, 2010 i30CW SLX CRDi Auto. 2008 i30 CRDi SX manual, Welly

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  • Posts: 226
  • au Australia
    Brisbane
Re: Uneven ride height. Rear left side is hanging.
« Reply #18 : October 14, 2018, 01:49:27 »
Springs are typically marked LH/RH.

Have then been fitted to the wrong side ?
How did you come up with that one? OEM springs front have same part number, OEM springs rear have same number so not sided.

Rear shocks not sided , same part number, rear mounts same number not sided

 macpherson struts are sided, struts mounts are not, same part number

Do you have any examples of this?



Pretty much every after market spring ive ever fitted, typically a vehicle will sit higher on the drivers side.
Must be  specialised applications then. Sounds expensive too.

off the shelf springs (both coil and leaf) from various suppliers.
  • 2017 Active PD 2.0, Manual, Black

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  • au Australia
    Samford Valley
Re: Uneven ride height. Rear left side is hanging.
« Reply #19 : October 14, 2018, 02:50:06 »
Springs are typically marked LH/RH.

Have then been fitted to the wrong side ?
How did you come up with that one? OEM springs front have same part number, OEM springs rear have same number so not sided.

Rear shocks not sided , same part number, rear mounts same number not sided

 macpherson struts are sided, struts mounts are not, same part number

Do you have any examples of this?



Pretty much every after market spring ive ever fitted, typically a vehicle will sit higher on the drivers side.
Must be  specialised applications then. Sounds expensive too.

off the shelf springs (both coil and leaf) from various suppliers.

I have struck this too, although not aware of it with Hyundai.

The Yanks are very much into different kerbside geometry. When I was doing imports and Left to Right hand steering swaps this was a factor. With pickups, The Fords never really worked for me. GM better, Mopar came up as good as in the US.
  • Every FD model; BMW Z3 M; Mitzi Magna(mobile office)

Re: Uneven ride height. Rear left side is hanging.
« Reply #20 : October 14, 2018, 04:50:19 »
Okay, to clear things up a bit :)

The car was sitting low in the rear left corner, which is the driver’s side where I live.

Therefore, I inspected the suspension and found, that the left rear shock looked worn and the coil spring looked worn and compressed compared to the right one. As the parts was somewhat inexpensive and old I chose to replace them with Monroe shocks and Lesjöfors coil springs, who is a Swedish manufacturer. After the new parts settled over a week, I had the car aligned and everything was fine for about one week, then the rear left corner started to sag again.

I have checked that the part numbers are correct, and both sides uses the same parts. Everything was torqued down to specs.

This is very strange! If I get the chance today, i will take it all apart again.
  • i30 1.6 crdi 2009 90 hp.

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  • au Australia
    Ipswich
Re: Uneven ride height. Rear left side is hanging.
« Reply #21 : October 14, 2018, 05:08:32 »
Okay, to clear things up a bit :)

The car was sitting low in the rear left corner, which is the driver’s side where I live.

Therefore, I inspected the suspension and found, that the left rear shock looked worn and the coil spring looked worn and compressed compared to the right one. As the parts was somewhat inexpensive and old I chose to replace them with Monroe shocks and Lesjöfors coil springs, who is a Swedish manufacturer. After the new parts settled over a week, I had the car aligned and everything was fine for about one week, then the rear left corner started to sag again.

I have checked that the part numbers are correct, and both sides uses the same parts. Everything was torqued down to specs.

This is very strange! If I get the chance today, i will take it all apart again.
please take some picks as it is first. If you have a ruler to place in the shot that way we can really see the height difference.
  • 2008 i30 SLX CRDi Auto, 2010 i30CW SLX CRDi Auto. 2008 i30 CRDi SX manual, Welly

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  • au Australia
    Samford Valley
Re: Uneven ride height. Rear left side is hanging.
« Reply #22 : October 14, 2018, 17:12:37 »
Your explanation is perfect.
Assuming mother-in-law has left the building, the only other variable I can think of is an empty to full tank of fuel.
Even so, the spring would have to be inadequate.
Shockies, should have no affect even if they are as old as. However, worth checking to see if LH shock is sticking and not travelling to full range.  :undecided:
Irrespective, a L to R swap is probably the only way to prove the point.

I await with interest  :cool:
  • Every FD model; BMW Z3 M; Mitzi Magna(mobile office)

Re: Uneven ride height. Rear left side is hanging.
« Reply #23 : October 15, 2018, 03:17:01 »
Disassembled the whole thing again yesterday, including removing of the lower control arms.

Discovered that the bushing in the hub carrier on the left side was worn a small amount and had a little more flexibility and give compared to the right one. But certainly not enough to cause a 3 cm. drop. Cleaned everything up and swapped the springs around. Same as last time, everything looked fine right after. I measured that the left side was around 3-5mm lower than the right, which is acceptable. Today I am going on a 200-mile trip. Exciting to see the results after some driving. If there is no improvement I will post some pictures for you guys.

  • i30 1.6 crdi 2009 90 hp.

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  • au Australia
    Ipswich
Re: Uneven ride height. Rear left side is hanging.
« Reply #24 : October 15, 2018, 03:19:31 »
Disassembled the whole thing again yesterday, including removing of the lower control arms.

Discovered that the bushing in the hub carrier on the left side was worn a small amount and had a little more flexibility and give compared to the right one. But certainly not enough to cause a 3 cm. drop. Cleaned everything up and swapped the springs around. Same as last time, everything looked fine right after. I measured that the left side was around 3-5mm lower than the right, which is acceptable. Today I am going on a 200-mile trip. Exciting to see the results after some driving. If there is no improvement I will post some pictures for you guys.
Sounds like a plan
  • 2008 i30 SLX CRDi Auto, 2010 i30CW SLX CRDi Auto. 2008 i30 CRDi SX manual, Welly

 


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