While being redundant...

Good deal, regardless of potential problems

Change ALL your fluids (good habit when buying a vehicle anyway -- Mobil1 0w40 will work out the sludge buildup these engines are well-known for, just change it regularly, as the lighter oils degrade faster). We use Rotella exclusively in our shop, and the synthetic 5w40 is ideal for this car (try Wal-Mart at $12.84/gallon -- blue container)

While I disagree with MB servicing schedule, I very strongly believe in their proprietary fluids over aftermarket brands. There is a reason they use the anti-corrosion coolant (or Zerex G05) instead of Prestone or Dexcool, and their synthetic power steering fluid (or Febi synthetic power steering fluid) is a must to prevent premature PS pump failure.

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Don't ask me, I'm a shop-owner by default