I cleared all of them and so far (without driving it) the only codes that are still present are:

PIN 19:
4. Air injection system faulty hot film mass air flow sensor with hot wire.
17. Data exchange malfunction between individual control module.

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• 1993 Mercedes-Benz 400E *146,000 Miles*
• 1985 Mercedes-Benz 300SD Turbo Diesel Biodiesel *SOLD @ 346,000 Miles*
• 1984 Mercedes-Benz 300D Turbo Diesel Biodiesel *SOLD @ 284,000 Miles*