Hello, On your 1992 Mercedes 300E you need to turn your ignition switch to the first notch (If you look at the black ring around the lock cylinder you will see a few dots. It will be the middle dot) Then you make a removal tool out of a piece of round metal, a small diameter coat hanger will work. Make it about 4 inches on each side and about one inch apart. You should see 2 small holes around the lock cylinder, they should be about 1:00 & 7:00 location, insert the tool into the holes about 1.25" or so and then use the key to remove the cylinder.
Wednesday, September 12th, 2007 AT 9:11 PM