Not too unusual, they are plastic and wear through, then fall out. I've put them in all the cars so far, or need them.
Thanks for the hint -- I've often had to remove the lever and use a vice to press the bushings in they are so stiff. Hot water is much faster....!
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!