Child Locks? Little lever on latch mechanism.
Not sure if you have 'em.
Our 1969 Peugeot and my 1972 R12 wagon did as does LOML Stratus.

Michael

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Usta haves '69 250/8, '76 280C, 1971 250C 114.023, 1976 450SEL 116.033
Current have, 1983 300SD 126.120