The lines at your fuel filter. On the 300E, that is just in front of the right rear tire. Check and test all the fuel distributor connections for tightness. You have a rather large air leak on the incoming fuel side.

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1985 300D 198K sold
1982 300D 202K
1989 300E 125K
1992 940T

"If you dont have time to do it safely, you dont have time to do it"

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