I'm doing some work on an '85 wagon and noted when pulling it off that the driver's side knee panel has no screw holes and little plugs at the top, just spring clips - all but one of which were broken, and the last one gave up when I removed it. The dash has holes for the screws, and even the clip nuts, and the panel on the passenger side has screws like normal. What's up?

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'82 300CD
"Pearl", the very first turbo diesel 123 coupe
Totaled 11/23/18, rebuild in progress.
'85 300TD, "Artemis".
'78 300D euro, "Ol' Red", mostly retired.
'85 300D, "Gandalf".