How to adjust idling speed in 602 & 603 engine - PeachParts Mercedes-Benz Forum

francis · #1 05-14-2000, 06:16 PM

How do I adjust idling speed in a 602 and 603 engine? Is it just a screw on the injection pump?

Thanks!

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94' E280 Euro
85' 300D Euro
87' 250D Euro
77' 300D Euro
Manila, Philippines

mbdoc · #2 05-14-2000, 06:45 PM

ON the 1986 & later US cars there is a computer to control the idle speed, but there is a base setting w/o computer control. There is a adjusting bolt & jam nut at the rear of the inj. pump at the top, base setting is 50-75 rpm below desired speed.

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