Have any 500E owners ever had any trouble with their driveshaft? I have a mildly annoying slight vibration in my car that (a) I feel through the seat, not the steering wheel, (b) occurs from about 45 mph to about 75 mph, and (c) seems to vibrate faster than the wheel rpm. The problem has been with me for as long as I've owned the car - 2 years/17,000mi. The dealer replaced the trans and the trans tunnel insulation blanket shortly after I bought the car (Starmark - 99K mi.). I had the front flex disc replaced and the rear one tightened. I'm the third owner. I have complete service records on the car, but no direct knowledge of any collision. I wouldn't rule out a rear end collision that may have required a respray on the trunk lid and a new bumper, but I'm not sure. I'm wondering if maybe the driveshaft is bent or out of balance. The car is otherwise in excellent condition as Guido and -fad will attest. Any thoughts?

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Mark Stetson
1995 E320 Wagon Moonstone Grey/Parchment 106K mi.
2007 E63 AMG Graphite/designo 75K mi