If the depth at which the clutch pedal actuates the clutch feels right (not too high, not right off the floor) it shouldn't be a problem. I'm not sure of the rhyme or reason to which applications got the spacer, but AFAIK it only makes a small/moderate difference in pedal depth.

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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".