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Old 08-11-2006, 09:48 AM
mctwin2kman mctwin2kman is offline
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Join Date: Jul 2004
Location: York, PA
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Quote:
Originally Posted by jmbig View Post
I just started having a similar problem with my '90 300e after changing the oil, but it sticks steady at 3 until it warms up and drops to near 0 when idling in gear and it never did that before. When I give it gas it jumps back up to 3. I plan to change the oil & filter again and, if it's not better, mechanically check the pressure. I'd appreciate any other thoughts. Thanks.
That is normal and in spec according to MB anything over .7 Bar at idle is normal as long as it pegs 3 when you hit 2000 RPM. Did you use a lighter oil? Is it hot as hell there? When the temp is real hot and the engine equally hot, say near the 100 C mark, the oil thins considerably. You will get lower pressure when this happens but still be within spec. But as long as it is at 3 when you are above 2000 RPM then you have enough pressure and flow.
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