Went to go to work the other day and my 2002 Mercedes C-240 wouldn’t go into reverse. I pushed it out of my driveway then realized it would only shift into 3rd and 4th gear. Shift knob feels loose and I can’t find any other gears. Drives fine but obviously sluggish until i reach higher speeds for the appropriate gear. Anyone know what could cause this? I’m guessing possibly a shift rod of some sort broke? I appreciate the help!!!