I have a 2000 CL 500 with 94000 miles.Have no problems with this car.Only one thing.I feel radiating-vibration noise at 1000-1200 RPM's.I have been told that ABC pump makes this noise.Or maybe A/C.I do not think this problem is A/C because when it is off I can hear the same low frequency noise.
Does anybody have this problem?
Thank You

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