Oh ya,
This is the one I have, have never used, but just had to have.

http://www.testequipmentdepot.com/Wittig/ozsifox.htm

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