Sorry, but I don't remember the order that stuff came apart, but it seems to me that the spacer slid off over the key. If it won't do that, then you will have to persuade the key to come out first. There should be a second key under the spacer.

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Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe