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#1
03-29-2009, 11:26 AM
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Sudden Wobble - 560 SEL
Out of the blue, the 560 developed a fairly severe front end wobble, as if the wheel is about to fall off. Very bad at low speed, moderates somewhat as speed increases. It also has a moderately strong pull to the left (sudden onset) as well. The wife does not recall even a minor pothole encounter...
I've done a preliminary check for something obvious (dangling idler arm, lost ball joint) but haven't put it up on the lift yet. Searching herein, the first supect is a tire gone bad so I'm going out to switch/rotate the tires. I'll check back in with results in a little bit. In the meantime -is there any other item that could fail that suddenly without some prior indication of impending failure? Best regards to all, Kevin
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"Dangerous with a wrench...and not smart enough to know it" Stable (in order of acqusition): '84 500SL, 280SEL (Euros) '77 280SE. '90 560SEL '79 450SEL 6.9, '95 C280 (totalled by daughter 8/07) '81 280SL (rescued) '88 300CE '86 560SEC '95 C36 '01 CL55 DD's: '04 S500 4Matic (SWMBO) '04 F150 Crew 
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#3
03-29-2009, 05:40 PM
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Sounds like a belt broke in a tire. My MB does this too... tires are on my list. My last MB did it as well and new tires cured it.
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#4
03-29-2009, 09:38 PM
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Darn..
Wish I'd seen Randy's reply earlier - I woulda checked for a missing weight(s) while rotating; every thing else is in good repair...
But it is definitely tire/wheel related. The steering wheel is behaving now and the wobble is way less apparent after the rotate. New set of tires on order. We got 45k miles out of a set of Kumhos - I guess I can't complain too loud... Thanks for the responses guys... Best regards, Kevin
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"Dangerous with a wrench...and not smart enough to know it" Stable (in order of acqusition): '84 500SL, 280SEL (Euros) '77 280SE. '90 560SEL '79 450SEL 6.9, '95 C280 (totalled by daughter 8/07) '81 280SL (rescued) '88 300CE '86 560SEC '95 C36 '01 CL55 DD's: '04 S500 4Matic (SWMBO) '04 F150 Crew
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#5
03-30-2009, 04:01 PM
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Two things (at least) are shot.
1) You need a new idler arm kit 2) You need a new steering damper. It WILL get worse if you don't fix it, and it can make you wreck. Get it fixed immediately. Have the ball joints and tie rods inspected while you're at it.
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-tp 1990 300SE "Corinne"- 145k daily driver - street modified differential - PARTING OUT OR SELLING SOON - PORTLAND OR. AREA - PM ME FOR DETAILS 1988 560SEL "Gunther"- 190K passes anything except a gas station 1997 S420 - 265k just bought it with a rebuilt trans. Lovely condition
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#6
03-30-2009, 06:08 PM
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Wait, maybe I misunderstood your post. Does the problem go away and come back suddenly, like when you hit a pothole? If so, then I stand by my first diagnosis.
If this is something that just broke, and stayed that way, then you should be able to see it. Either way, double check that idler arm bushing and your steering damper. When they went out on my car, it felt like the wheel was coming off and I thought for sure I was going to wreck when it started happening at 60+ MPH on a country road. After replacing the idler arm kit and doing the damper, it's a completely different car.
__________________
-tp 1990 300SE "Corinne"- 145k daily driver - street modified differential - PARTING OUT OR SELLING SOON - PORTLAND OR. AREA - PM ME FOR DETAILS 1988 560SEL "Gunther"- 190K passes anything except a gas station 1997 S420 - 265k just bought it with a rebuilt trans. Lovely condition
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