my1994 e320 willnot shift into any gear from the transmission. help

have you checked the fluid? is it leaking anywhere. when is the last time the trans was serviced. was it slipping the last time you drove it? The questions will go on and on. Start with the basics. also check to see if the reverse lights come on when shifted into reverse, Make sure to set the brake and do not start the car to check just turn the key on. if they light up that would mean the linkage from the shifter is going to the transmission shift lever, if not then check to see if the linkage bar has come unhooked from the shifter to the transmission. the bushings and clips wear out and cause problems like this