Hi everyone, I am hoping to get some insight into what my oel pressure should be during warm idle for my '79 350se with the m116.

Above 1 bar would be great. If it's just under I wouldn't worry. .5 bar and I'd start checking things.

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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.

On my recently rebuilt m117 it has to be a hot, slow idle for it to go below 2 bar. I don't think I've ever seen anything less than 1.5 bar.

As far as damaging something, I agree that anything over 0.5 bar should be fine.

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Csaba
1972 280SEL 4.5, silver

Over the 1st line (15psi) while in gear is fine. If lower and I would switch to a thicker oil like a 20w50.

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With best regards

Al

Ok great. Oil pressure is fine its up just above the 2, sometime 2.5. I am wondering if the car is idling high.

I have several cars on 5/10/15W40 that idle over 2 bar. Your car is fine, if anything it sounds healthy.

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68 280SL - 70 280SL - 70 300SEL 3.5 - 72 350SL - 72 280SEL 4.5 - 72 220 - 72 220D - 73 450SL - 84 230GE - 87 200TD - 90 190E 2.0 - 03 G500

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