S-Class (W140) 1991-1999: 300 SD, S 350TD, 300 SE 2.8, S280, 300 SE 3.2, 300 SEL 3.2, S320, S320L, 400 SE, S420, 400 SEL, S420L, 500 SE, S500, 500 SEL, S500L, 600 SE, S600, 600 SEL, S600L, 500 SEC, 600 SEC

Troubleshooting the accumulators on automatic leveling rear suspension

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Old 05-06-2011, 12:44 PM
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C240, S500
Troubleshooting the accumulators on automatic leveling rear suspension

I bought a used 98 S500 with 87K miles on it. The suspension oil tank was down, so maybe it was evaporation. It looked like it had the original oil in the tank, so I flushed the system and put new oil in it. I noticed that one of the accumulators was replaced with an aftermarket Corteco accumulator.

The question is: how do you determine if an accumulator has failed? can anyone describe the driving characteristic with a failed accumulator? I do notice a rear suspension harshness on rough pavement.

Thanks,

mike
Old 06-27-2011, 11:11 AM
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'95 S600, '77 300D
here, check these sites out. hope this helps.

Adaptive Damping System (ADS) Diagnosis
http://w140repair.com/Adaptive_Dampi..._Diagnosis.htm

Nitrogen Chamber - Accumulators (2 per Car)
http://www.pelicanparts.com/cgi-bin/...dan%20140.057-

Replacing Accumulators (aka Pressure Spheres, Nitrogen Spheres, Spring Actuators)
http://w140repair.com/Replacing_Accumulators.htm
Old 07-11-2011, 01:38 PM
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'99 S500 (W140)
where the hell is the suspension oil tank? sorry but idk where half the things in my car are, makes me feel ignorant lol

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