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#1
08-19-2007, 12:21 AM
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Do W123 coupes have torsion bars?
This guy says "the car runs very well, however it has a broken torsion bar now, which is about an 800.00 repair at a shop."
I have never worked on a 123, but I thought they had coil springs. http://chicago.craigslist.org/wcl/car/399964033.html 
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#2
08-19-2007, 12:25 AM
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He may be talking about the sway bar or guide rods on the front.
More info is needed.
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RRGrassi 70's Southern Pacific #5608 Fairmont A-4 MOW car 13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete. 91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K 90 Dodge D250 5.9 Cummins/5 speed. 400K
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#3
08-19-2007, 12:37 AM
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No torsion bars on mine. It has the same suspension as a sedan.
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DJ 84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012 
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#4
08-19-2007, 01:08 AM
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I think mercedes favored spring suspension, due to its ability to absorb shock so much better. a smoother ride overall, where as torsion bar is attached directly to the frame, or body. more vibration felt throughout the entire car.
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Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? As long as they would add one additional commandment for you to keep thy religion to thyself. George Carlin (Wonder where he is now..) 1981 240d (engine donor 1983 240d) recently rebuilt engine hurray! - No more.. fought a tree and the tree won. pearl black 1983 240d 4speed (Converted!@$$%) atleast the tranny was rebuilt.
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#5
08-19-2007, 01:18 AM
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Maybe it's a VW kit car
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1983 300SD Rusty, Loud and Proud
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#7
08-19-2007, 04:48 AM
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Go with Ara T. MB calls 'em a torsion bar, really an anti-sway bar. Seems to be odd for that to break. You'll need to check the other components connected to it. The upper control arm(s) anyway. Looks like a PITA to replace.
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83 SD 84 CD
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#8
08-19-2007, 05:39 AM
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The Sway bars do break on occasion.
It is rare but the cars are over twenty years old. Tom W
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.  [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#9
08-19-2007, 07:15 AM
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Rust sure doesn't help... I can't remember who it was, but someone had to fix their broken sway bar and it was a huge pain in the ass. Then you look at a domestic car and the sway bar is on the bottom and takes 5 minutes to remove...
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1985 CA 300D Turbo , 213K mi
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#10
08-19-2007, 08:53 AM
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We replaced it on our '83 after rust broke off the tip on the passenger side. It was quite a project.
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-diesel is not just a fuel, its a way of life-  '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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#11
08-19-2007, 10:39 AM
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torsion bar saver
why change out the whole Torsion bar? look in the tools
section, there is a part called "Torsion bar saver" for the W-123 / 126. just replace the ends of the bar with new ends welded on. I think they are stainless steel. read that some place. part# QP 1000 $127.50 CHARLIE
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there were three HP ratings on the OM616... 1) Not much power 2) Even less power 3) Not nearly enough power!! 240D w/auto Anyone that thinks a 240D is slow drives too fast. 80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works
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#12
08-19-2007, 10:56 AM
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You can get a new MB rear sway bar for $100 or so. Any junk yard will carge you no more than $50. Rear replacement is easy, front is harder.
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http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42
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#13
08-19-2007, 06:50 PM
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yah, the sway bar usually breaks on the end where it attaches to the wheel suspension. never heard of one breaking in the midsection.....
I'd be wary of welding a suspension component. the sway bars are hardened, welding will take away the hardening, opening you up to a fatigue failure.......
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-Matt EPA Section 609 Certified MVAC Technician ----------------- Oil Burner Kartel Member #10 Ahh the smell of Diesel Fuel, it's like coffee in the morning! My Car: 1982 300SD Turbo Diesel (231,500 miles!) RIP 1984 300SD Turbo Diesel Custom (235,500 mi on driveline.) - On Road!! www.icsrepair.com 
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#14
08-19-2007, 06:57 PM
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I doubt the sway bars are hardened. There's no reason to do so. I have repaired a broken sway bar end by welding on a bolt. The repair was quick, much quicker than replacing the sway bar. It's still going, over 10 years later.
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#15
08-19-2007, 08:51 PM
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Is the car really undrivable w/out a front sway bar? I had a VW vanagon with a broken swaybar link and didn't notice much of a difference.
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1983 300SD Rusty, Loud and Proud Last edited by Dieseldoofus; 08-19-2007 at 08:51 PM. Reason: sp
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