I am a new comer to this forrum and appreciate the tremendous amount information on this site. I own a 2000 CL500 (my 5th mercedes).
Last week a humming noise started coming, took it to my independent service guy, the hydraulic oil was real low. He also checked the transmission and power steering oil as well. The noise is still coming at low RPM only.
The suspension works fine, level ajdustment is fine and there is no ABC light.
I have three questions from the experts:
A. Is it ABC pulsation Damper/accumulator which is causing this humming noise?
B. one of the on-line auto part store listed two different accumulators e.g. (1) Center suspension accumulator return air suspension (P/N 220-320-0415-OR) $170 the other, (2) Front suspension accumulator (P/N 220-327-0215LEMF) $123. Which of the accumulator do I need to order?
C. The schematics diagram given on this site is not very clear. Is there an explanation to where this accumulator is located and how to get to it? and is there any precuations, bleeding etc is needed?
Thanks in advance
"Life is just like Jazz, it's best when you improvise"