Like Lance said... It should be above 300psi, and within 10% of each other is what I've read somewhere else. My truck got up to 495 psi, lowest 460psi, but thats a bigger engine (7.3L). My Benz was around 350 I think... not GREAT numbers but acceptible, but it runs great so I don't care. There were no really low numbers to alert me to a problem, so I think she's fine.

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1985 300D Mango Green with 16" Pentas, Vogtland springs, Euros/ clear corners, 234k, lots to come soon....