Have you checked the fuel pressure at the large inlet line ? Good to cover it before you crack it loose. Should spray fuel to the inside of the hood (bonnet)

Have you checked for vacuum leaks ? Just about any spray will work. Dont forget to check your injector boots.

Morning start issue... check your cold start injector.

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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"

"The democracy will cease to exist when you take away from those who are willing to work and give to those who would not."