Thanks for the information. I don't know if I've got vacuum or electric Cruise control. The thing that looks like it might be the cruise is a soup sized can, mounted on the driver's side, with a black tube running to the throttle and other tubes running to the firewall, also several wires. I'll try to eaxmine it more carefully tonight. Also, what is the best way to lubricate the rear window regulators in my 300cd? Can I shoot some lubricant down in through the seal with one of those wd-40 tubes? Do I remove the rear inside panels? If so any tricks or pitfalls in doing so?
Thanks, Marvin