As a point of comparison, I drove a super-clean, two-owner 2000 E55 with 55,000 miles and all service records last month. Silver/black, new tires and looked like a show room car, owner was a MB enthusiast and asking $15k.
Sounds like yours is at least $5k too high.
Twotone
Sounds like yours is at least $5k too high.
Twotone