1988 560 sec - Mercedes-Benz Forum

 
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post #1 of 10 (permalink) Old 06-04-2010, 05:01 PM Thread Starter
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Post 1988 560 sec

I recently purchased a 1988 560 sec, she's a beauty, never owned one before and really like her! It has 162,000 miles and the problem I am having is that the rear bounces up and down quite a bit like the rear shocks are shot, any imput on what may be the problem with it. Thanks for any info
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post #2 of 10 (permalink) Old 06-04-2010, 05:16 PM
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When was the suspension last overhauled?
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post #3 of 10 (permalink) Old 06-04-2010, 10:59 PM
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You may need new rear suspension accumulators -- common enough....

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post #4 of 10 (permalink) Old 06-05-2010, 06:26 AM Thread Starter
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Thanksfor all the replies, Don't know if the suspension has ever been overhauled, suspension accumulators? This all sounds (french to me) Doesn't sound like changing a pair of shocks, Thanks to all
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post #5 of 10 (permalink) Old 06-05-2010, 10:01 AM
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GermanStar ought to know.

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post #6 of 10 (permalink) Old 06-05-2010, 10:39 AM
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Have you searched the W126/C126 section for answers?
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post #7 of 10 (permalink) Old 06-05-2010, 10:42 AM
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Quote:
Originally Posted by emscheif View Post
Thanksfor all the replies, Don't know if the suspension has ever been overhauled, suspension accumulators? This all sounds (french to me) Doesn't sound like changing a pair of shocks, Thanks to all
You'll find 'em here: Mercedes W126 Steering and Suspension Parts

First item on the page. No guarantee that's the issue of course, but it does fit the symptom and it's quite common. Your car is not equipped with standard shocks, it has load-levelers. If it were equipped with standard shocks, I would agree with your initial assessment.

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post #8 of 10 (permalink) Old 06-05-2010, 10:50 AM
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Originally Posted by GermanStar View Post
You may need new rear suspension accumulators -- common enough....
"Accumulators refers to the fact this car has air suspension and does not have conventional shock absorbers.

Where you might normally find shock absorbers are instead load levelers. They are seldom replaced unless they are leaking, and then they are always replaced singly, i.e. just replace the one that's leaking.

The "shock absorber" function is performed by accumulators, which look like round balls and are probably hidden somewhere where you can't see them without removing body panels in the trunk.

Accumulators are normally replaced in pairs and are maybe $100-200 each, while the load levelers are more like $800-900 each. It's MUCH more likely the problem is the accumulators (assuming the system has no leaks and the hydraulic pump functions correctly) and you should ask for lots of "proof" if the tech wants to replace one or more load levelers.

Kent Christensen
Albuquerque
'07 GL320CDI

Last edited by lkchris; 06-05-2010 at 10:57 AM.
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post #9 of 10 (permalink) Old 06-05-2010, 06:31 PM Thread Starter
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Thanks to all for all the helpful responses I'll have to do some investigation and see if I can locate the Accumulators, Not sure what i'll do after I find them! Again THANKS to all who responded
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post #10 of 10 (permalink) Old 02-11-2011, 01:48 PM
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Bouncing ...

I have the same issue, diagnosed as the accumulators (as previously mentioned). Also, as previously stated, cost averages between $400 - $500.00.
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