My Idle RPM go from 850 to just over 500 when in gear. Oil pressure when hot can get as low as .5 bar. I was a little worried at first, untill I read the procedure for setting idle speed.

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RIP: 80 300SD
RIP: 79 450SEL
2002 E430 4matic (212,000km)
2002 ML500 'sport'

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