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+--- Thread: Tail fish when going over bumps? (/showthread.php?tid=3217)
Tail fish when going over bumps? - Purplecomputer - 01-01-2012
Hey guys,
On my quest to restore my 240D slowly, ive noticed an annoying problem. Every time i go over bumps and ones that are fairly large, My car does a slight tail fish.
This problem is intermittent and does not happen all the time but does happen more and more often. there is also a nice clunking noise in the rear end when i go over these said bumps
all shocks are brand new and replaced about three to four months ago.
any ideas?
RE: Tail fish when going over bumps? - serverman777 - 01-01-2012
Sway Bars connecters? Are they there and connecting stuff together?
RE: Tail fish when going over bumps? - willbhere4u - 01-01-2012
?rear control arm bushings?
RE: Tail fish when going over bumps? - iheartboost - 01-02-2012
you mean fish tail? lol jk not trying to give you a hard time.
RE: Tail fish when going over bumps? - serverman777 - 01-02-2012
Didn't know that tails could fish
RE: Tail fish when going over bumps? - vstef_is - 01-02-2012
yup, look at the bushings...
RE: Tail fish when going over bumps? - Purplecomputer - 01-02-2012
(01-02-2012, 02:00 PM)serverman777 Didn't know that tails could fish
hahah, I do that all the time with other words.
(01-02-2012, 02:20 PM)Purplecomputer(01-02-2012, 02:00 PM)serverman777 Didn't know that tails could fish
hahah, I do that all the time with other words.
(01-01-2012, 11:09 PM)willbhere4u ?rear control arm bushings?
So i checked the sway bar and all the bushings and nothing looks bad to me, but take a look. I tried to get the best pictures as possible
They are only $20 for the set at most websites. Should I just replace them?
![[Image: 20120102_134357.jpg]](http://i42.photobucket.com/albums/e338/links156/20120102_134357.jpg)
![[Image: 20120102_134415.jpg]](http://i42.photobucket.com/albums/e338/links156/20120102_134415.jpg)
![[Image: 20120102_135203.jpg]](http://i42.photobucket.com/albums/e338/links156/20120102_135203.jpg)
![[Image: 20120102_135209.jpg]](http://i42.photobucket.com/albums/e338/links156/20120102_135209.jpg)
![[Image: 20120102_135228.jpg]](http://i42.photobucket.com/albums/e338/links156/20120102_135228.jpg)
RE: Tail fish when going over bumps? - vstef_is - 01-02-2012
Those look great - I'd look at the bushes on the rear arms.
RE: Tail fish when going over bumps? - Purplecomputer - 01-02-2012
(01-02-2012, 02:43 PM)vstef_is Those look great - I'd look at the bushes on the rear arms.
Great, one less expense. This is a noob question, but where can i find those bushings?
RE: Tail fish when going over bumps? - serverman777 - 01-02-2012
rockauto.com.
They sell the cheapest parts on the web and got everything
RE: Tail fish when going over bumps? - Purplecomputer - 01-03-2012
(01-02-2012, 09:40 PM)serverman777 rockauto.com.
They sell the cheapest parts on the web and got everything
Is this what I should replace? if so i forgot to take pictures but they are dry rotted on my car.
![[Image: 2013261081.jpg]](http://mercedessource.com/files/imagefield/product/2013261081.jpg)
RE: Tail fish when going over bumps? - JustPassinThru - 01-03-2012
Those are rear sway bar bushings. I just happen to have a rear sway bar beside me (finger is pointing to a bushing). If dry-rotted, by all means replace it. Might not be the whole solution though.
RE: Tail fish when going over bumps? - vstef_is - 01-03-2012
A bit of dry rot never hurt anyone - from the pics, I think they're fine. Plus, the sway bar only allows the rear arms to move up and down together, which is good when cornering, as it will keep a wheel on the ground. However, they're not responsible for allowing any kind of side-movement of the rear axle assy.
That - if any (which is what would cause some tail fish
) should be the fault of the rear arms bushes - which should look very bad.Look at the rear wheels - rear arms, and the point they're mounted on the chassis. There's bushes galore, and quite big ones.
RE: Tail fish when going over bumps? - serverman777 - 01-03-2012
As long as its there its fine. I don't lose sleep over dry rotted bushings.
Take a Pic of your rear tires. Like the tread part, upload a pic for I can see. (I work at a tire place)
RE: Tail fish when going over bumps? - Purplecomputer - 01-03-2012
(01-03-2012, 09:49 AM)serverman777 As long as its there its fine. I don't lose sleep over dry rotted bushings.
Take a Pic of your rear tires. Like the tread part, upload a pic for I can see. (I work at a tire place)
Ill take one tomorrow morning.
RE: Tail fish when going over bumps? - Captain America - 01-05-2012
All of what vstef_is and serverman777 are saying is very good.
But wait. Have you tried standing on the side of the car and push/pull on it in the rear? It may be easier to open the trunk so you can grab the edge and shake. The only side to side movement you should get is the wheel moving in the tire.
With my El Camino, (has large rear tire with lots of sidewall) I am always surprised at how far the wheel moves side to side in the tire. But the suspension should not have ANY side to side movement!
RE: Tail fish when going over bumps? - serverman777 - 01-05-2012
I dig that pic of the rear end Captain. I know a 123/126 rear assemble better than most of my family members
RE: Tail fish when going over bumps? - Captain America - 01-05-2012
I love rear ends too! wink wink haha
RE: Tail fish when going over bumps? - vstef_is - 01-05-2012
(01-05-2012, 03:01 AM)Captain America I love rear ends too! wink wink haha
Ditto!
123/126 rears' are the best IMHO... I just don't like the complicated stuff they pulled with 201/124... kinda over the top.
RE: Tail fish when going over bumps? - Purplecomputer - 01-05-2012
(01-05-2012, 12:43 AM)Captain America All of what vstef_is and serverman777 are saying is very good.
But wait. Have you tried standing on the side of the car and push/pull on it in the rear? It may be easier to open the trunk so you can grab the edge and shake. The only side to side movement you should get is the wheel moving in the tire.
With my El Camino, (has large rear tire with lots of sidewall) I am always surprised at how far the wheel moves side to side in the tire. But the suspension should not have ANY side to side movement!
Just checked it out, No movement other then the wheel.
![[Image: 20120105_153014.jpg]](http://i42.photobucket.com/albums/e338/links156/20120105_153014.jpg)
![[Image: 20120105_153023.jpg]](http://i42.photobucket.com/albums/e338/links156/20120105_153023.jpg)
Here are some pictures of my tires as requested.
RE: Tail fish when going over bumps? - ronnie - 01-05-2012
two differant tyres? That does not help anything. Should not be the problem though.
RE: Tail fish when going over bumps? - vstef_is - 01-05-2012
I'm still selling the "rear arms bushes" story...
Just follow the rear arms towards the underside of the car, where they connect with the chassis, look for rubber - that's my bet...
RE: Tail fish when going over bumps? - Purplecomputer - 01-06-2012
(01-05-2012, 08:20 PM)vstef_is I'm still selling the "rear arms bushes" story...
Just follow the rear arms towards the underside of the car, where they connect with the chassis, look for rubber - that's my bet...
Yeah those are all cracked and dry rotted. im going to replace those
(01-05-2012, 07:12 PM)ronnie two differant tyres? That does not help anything. Should not be the problem though.
Used tires, with good tread i only got both of them for $50
RE: Tail fish when going over bumps? - serverman777 - 01-06-2012
The tires look fine. I got 4 different brands on tires on my Benz. Your wear looks even also.
RE: Tail fish when going over bumps? - Captain America - 01-07-2012
Wheres the Like button haha, I keep looking for it to back up good suggestions