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Discussion Starter #1
Greetings all,

I'm noticing lately a very significant rear-end floating (like right-left horizontal bouncing) like I'm in an old 80s GM B-body sedan, I'm getting this feedback from my driver's seat and also my family from the back seat had noticed it, symptoms only occurs when driving in straight line over a slightly uneven pavement in a very smooth road.

All rear end bushings + rear diff mounts + axels calfs have been replaced last year except the four that are mounted to the sub-frame and all the bushings were dray, replacements were Fibi, also the rear springs were out and were replaced with Meyle ones but after installation, the ride height (rear-end) raised a lot and the look was hideous till now, but driving-wise they were good and steady, rear shock absorber were never replaced and this is all as far as I can remember.

I parked the car for the previous 2 days till I find the issue because I think it's too dangerous to drive it, anyone has a clue what's damaged?
 

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Febi and Meyle are junk. no idea about Dray.

side to side motion would be a function of the rear control arms, of which there are like 5 on each side. or maybe a bad very loose wheel bearing?
I think the OP meant dry (bushings), but that is a educated guess on my part.

OP, when it comes to suspension on these cars it's either OE MB and some Lemforder, or bust. Anything else is rubber Chinese dog shite, and even Lemforder is going the Long Duck Dong route. Caveat emptor/buyer beware, it pays to pay a bit more for peace of mind and longevity.
 

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Also, when the rear suspension bushings/links are replaced, they need to be tightened with the wheels on the ground or supported at ride height. If the bushings are tightened with the rear wheels hanging free in the air, not a good thing.
 

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If you can feel the problem as easily as you describe, it should be easy to find the failed suspension joint. I too would be looking closely at the multi links at the rear.
 

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Discussion Starter #7
Febi and Meyle are junk. no idea about Dray.

side to side motion would be a function of the rear control arms, of which there are like 5 on each side. or maybe a bad very loose wheel bearing?
Hey bro,

yes, #sbaert got me I meant dry,

From my experience the Fibi was good, there are two Fibi drive-shaft calfs still strong after 3 years & 200km since last replaced, actually the problem is in our region there's no better quality spare parts manufacturer than Fibi other than Mercedes-Benz agency its self, the agency called Al-Jaffali, search for it it's maybe the biggest M-B dealership in the Middle East, please do not get me wrong people i always and I do mean always fit the vehicle with highest price/best quality OEM parts but if they're availbe, Meyle is indeed an utter rubbish problem is that i didn't find another high-end brand for the springs at the time, this is what happens when you're broke and have only one daily driver car #: you have to keep it moving you know, anyways @ LeftCoastGeek I'll check the bearings & feed you back.
 

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Discussion Starter #8
I think the OP meant dry (bushings), but that is a educated guess on my part.

OP, when it comes to suspension on these cars it's either OE MB and some Lemforder, or bust. Anything else is rubber Chinese dog shite, and even Lemforder is going the Long Duck Dong route. Caveat emptor/buyer beware, it pays to pay a bit more for peace of mind and longevity.
@sbaert

Agree with all what you said, the problem is that even when I went to the agency they informed they do not distribute these parts anymore, so maybe I have to import them, otherwise man I swear I would've brought them OEM please don't get me wrong I'm really far far from this type of people, actully I once broke the oil dip-stick and searched for new one everywhere and didn't find it but surprisingly it was available at the main agency and brought it from them, it just that in that very day there weren't anyother brands even in the other near shops but Meyle, and I really didn't think Meyle was that bad but they are after I saw the ride height, lesson learned.
 

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Discussion Starter #9
Was an alignment done after all that work? It should have been, and whoever did the alignment should have noticed if anything was loose or out is spec.
@ chuckh0308

Yes I immediately took it for an alignment shop, and after the technician had finished he didn't even mention to me that the four bushings mounted to subframe were dry and cracked although I was well aware that they are.
 

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Discussion Starter #10
Also, when the rear suspension bushings/links are replaced, they need to be tightened with the wheels on the ground or supported at ride height. If the bushings are tightened with the rear wheels hanging free in the air, not a good thing.
@ds190

Actually no, they were all tinted in the air.
 

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Discussion Starter #11
I think the OP meant dry (bushings), but that is a educated guess on my part.

OP, when it comes to suspension on these cars it's either OE MB and some Lemforder, or bust. Anything else is rubber Chinese dog shite, and even Lemforder is going the Long Duck Dong route. Caveat emptor/buyer beware, it pays to pay a bit more for peace of mind and longevity.
@sbaert

Bro I also forgot to tell you sadly i searched before for Lemforder and turned that we don't have Lemforder here, don't know the "bust" actually, we have Sachs for some suspension parts but there wasn't any for the springs, when I needed to change the springs I went for the shops (don't remember if they were not having ones in the warehouse or if Sachs didn't manufacture any springs) but i remember that i didn't find Sachs that day or I would've bought it, I replaced my front shock absorbers only with Sachs and till now they're still strong.

As far as I know, all the spare parts manufacturers here are:

- OM MB
- Bosch
- Fibi
- Sachs
- Meyle
- Trucktic or whatever the name
 

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If the wheels were hanging freely when things were tightened, that would explain why the rear ride height was really high at first and it's possible the bushings tore when it settled down. They have a certain amount of elasticity to allow normal suspension travel, but if you tighten them down while the suspension is drooping, there isn't enough range to allow compression.

Another thing to check is the lower arm outer bearings. They wear out faster (in my experience) than the link bushings, so if they haven't been done, I can pretty much guaranty that they are toast. I don't think they, alone, would cause the sensation you are experiencing unless something else is out ofwhack, but worth checking.
 

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Discussion Starter #14
Update

First of all, I want to thank every single one of you for your suggestions

And second I checked on the rear end today and there were tree (NEW) main defects I found:

1- both rear wheel bearings @LeftCoastGeek mentioned were worn out and the tires had a significant movement/play on them when the car is jacked with brakes applied plus there is a frequent clicking sound (like with every tire rotation) from the right rear tire with dead stop accelerations, unfortunately, I thought I can easily pull out the bearing right after removing the rim and the wheel hob but it looks like it has a fancy way to dismantle it, from the internal side maybe? I don't know!

* @chuckh0308 Is it the same "the lower arm outer bearings" you mentioned?

2 - the rear right CV axle calf, the tire side, not the diff side was brittle and looked like sh#t

3 - the front left main subframe bushing was broken, like completely destroyed

Regarding the multi-links, they were all tight and they seemed in perfect condition

In my book, these were enough to make this sort of play/floating feel or what you think guys?
 

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Discussion Starter #16
Sadly this is the end game I think, I was previously thinking of letting this car for weekends driving instead of consuming it with daily driving the way I'm doing, as I'm now saving for down payment of a brand new daily driver, was thinking a Ford Taurus, and this job alone needs more 400 USD and that's just to make the car safe to drive which is crucial on my wallet in this time plus she needs to rest for awhile in a covered shaded place so I can fix a simple thing each time in a peace of mind at least the obvious jobs until finishing all of them without risking driving it with other problems that might develop other issues just like was doing, I think a comfortable perfectly air-conditioned +300k km at least under my ownership in the past 4 years in the toughest weather & driving conditions was no additional bet on the W124 reliability.

But of course those recently mentioned defects will be the first to go in my restoration process and I'll be happy to give you the feedbacks once I finish them, still, I don't suspect I will be able to start in them in less than many many months ahead in these financial crises and the starving with a car financed in installments :grin :crying.
 

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Whenever I think about a new car v. keeping the one I have and fixing it, i can never get the new car numbers to pencil out.

Now granted this assumes a few things:
1) you can both accomplish your own work on your car, and you actually LIKE doing so
2)you have the space and tools to do so comfortably
3)you have an additional car to get around in while you work on the one that is down
4)you aren’t a nutter for the newest/latest and greatest tech integrated into your transportation
5) you aren’t a nutter for the newest/latest and greatest safety innovations in your transportation.

Brian, this 124 has more style and craftsmanship in its gearshift knob than the Taurus will ever have.

If the rest of the car is solid (not rusting away) I personally hope you don’t give up on it! the initial outlay for parts might be steep, but new car payments are forever :D

Best of luck in whatever path you choose!






Sent from my iPhone using Tapatalk
 

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Discussion Starter #18
Whenever I think about a new car v. keeping the one I have and fixing it, i can never get the new car numbers to pencil out.

Now granted this assumes a few things:
1) you can both accomplish your own work on your car, and you actually LIKE doing so
2)you have the space and tools to do so comfortably
3)you have an additional car to get around in while you work on the one that is down
4)you aren’t a nutter for the newest/latest and greatest tech integrated into your transportation
5) you aren’t a nutter for the newest/latest and greatest safety innovations in your transportation.

Brian, this 124 has more style and craftsmanship in its gearshift knob than the Taurus will ever have.

If the rest of the car is solid (not rusting away) I personally hope you don’t give up on it! the initial outlay for parts might be steep, but new car payments are forever :D

Best of luck in whatever path you choose!






Sent from my iPhone using Tapatalk
Thankfully all of the 5 assumptions you mentioned applies to me drastically except for no. (2)
I have the tools thought but I don't have space like a spacious and shaded garage, that's why I was talking with one of my friends about leaving my car in his garage to give the car a little break.

Thankfully it is solid as hell with no accidents at all, just few parking dents and bumps here and there, and 100% rust free, in this climate we only know rust from pictures.

about:
"4)you aren’t a nutter for the newest/latest and greatest tech integrated into your transportation
5) you aren’t a nutter for the newest/latest and greatest safety innovations in your transportation".
I'm absolutely the exact opposite of those particular two, in fact, i live in a place were 80% of people surrounding me are ridiculously terribly addicted to this kind of stuff mind you if you ask one of them you'll find out they're drowned with depts like letterly submerged with not less than a 5 digits number, I'm not joking I've met a lot, I never understood their definition of luxury, quality, and craftsmanship previously existed in old Benzes is now about a hideously designed paper body gadgets filled with that has nothing but a one ugly big flip-up screen were you can smell the interior cheap plastic a mile away, sadly even most of new Benzes are now rubbish.

"Brian, this 124 has more style and craftsmanship in its gearshift knob than the Taurus will ever have", never agreed more!

I just think it was too much using it the past 4 years every day to go to (my work/my college/my two sisters colleges/and all other trips, that's why I want another car I won't get attached much to it (drive and forget), that has a spacious, comfortable, quiet & reliable ride with a very conventional and simple engine/trans configuration and a very low final drive you know like old-school stuff not necessarily luxurious, my grandfather used to have a 2005 Toyota Avalon and only if they still producing this car I would've bought it without thinking, unfortunately, they don't, the new Avalon is a total failure and nowhere near the old one, new Honda Accord is ugly with both engines available only with TT, GM trash are all now Korean cheap sh#t terrible in every possible way with their GDI engines (a technology that should have never existed), I would never ever even jump to one, so there are no much choices nowadays that's why I settled with a Taurus.

Anyways thank you very much for your sincere wishes for me :D
 

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Discussion Starter #19
Whenever I think about a new car v. keeping the one I have and fixing it, i can never get the new car numbers to pencil out.

Now granted this assumes a few things:
1) you can both accomplish your own work on your car, and you actually LIKE doing so
2)you have the space and tools to do so comfortably
3)you have an additional car to get around in while you work on the one that is down
4)you aren’t a nutter for the newest/latest and greatest tech integrated into your transportation
5) you aren’t a nutter for the newest/latest and greatest safety innovations in your transportation.

Brian, this 124 has more style and craftsmanship in its gearshift knob than the Taurus will ever have.

If the rest of the car is solid (not rusting away) I personally hope you don’t give up on it! the initial outlay for parts might be steep, but new car payments are forever :D

Best of luck in whatever path you choose!






Sent from my iPhone using Tapatalk
Thankfully all of the 5 assumptions you mentioned applies to me drastically except for no. (2)
I have the tools thought but I don't have space like a spacious and shaded garage, that's why I was talking with one of my friends about leaving my car in his garage to give the car a little break.

Thankfully it is solid as hell with no accidents at all, just few parking dents and bumps here and there, and 100% rust free, in this climate we only know rust from pictures.

about:
"4)you aren’t a nutter for the newest/latest and greatest tech integrated into your transportation
5) you aren’t a nutter for the newest/latest and greatest safety innovations in your transportation".
I'm absolutely the exact opposite of those particular two, in fact, i live in a place were 80% of people surrounding me are ridiculously terribly addicted to this kind of stuff mind you if you ask one of them you'll find out they're drowned with depts like letterly submerged with not less than a 5 digits number, I'm not joking I've met a lot, I never understood their definition of luxury, quality, and craftsmanship previously existed in old Benzes is now about a hideously designed paper body gadgets filled with that has nothing but a one ugly big flip-up screen were you can smell the interior cheap plastic a mile away, sadly even most of new Benzes are now rubbish.

"Brian, this 124 has more style and craftsmanship in its gearshift knob than the Taurus will ever have", never agreed more!

I just think it was too much using it the past 4 years every day to go to (my work/my college/my two sisters colleges/and all other trips, that's why I want another car I won't get attached much to it (drive and forget), that has a spacious, comfortable, quiet & reliable ride with a very conventional and simple engine/trans configuration and a very low final drive you know like old-school stuff not necessarily luxurious, my grandfather used to have a 2005 Toyota Avalon and only if they still producing this car I would've bought it without thinking, unfortunately, they don't, the new Avalon is a total failure and nowhere near the old one, new Honda Accord is ugly with both engines available only with TT, GM trash are all now Korean cheap sh#t terrible in every possible way with their GDI engines (a technology that should have never existed), I would never ever even jump to one, so there are no much choices nowadays that's why I settled with a Taurus.

Anyways thank you very much for your sincere wishes for me :D
 
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