Autostore manuals like Haynes don't exist. The purists will tout Mercedes available CD sets that run around $80.
Ebay has CD sets that seem to be the OEM's (most likely pirated) for cheap. I bought a set off Ebay that were licensed but not Mercedes published. These are useful for general repairs and wiring diagrams. Mitchell makes them.
One publisher to Google is Bentley. They have paper manuals for $60-$80.
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