Fixes and off to the shop

Haven't had much time to tinker on the car.  I did pull the H&R springs and give them away.  I got a set of factory Sportline springs, unfortunately they sent the wrong part and I got long ones up front, so I'll have to cut a coil or two.  I also installed the O2 sensor, plugs, and plug wires, but the duty cycle still seems pegged at 83%.  So I've decided to drop it off at the local Mercedes shop for proper tuning.