BTW, will a leak from the vacuum-driven locking system influence the performance of the car?

My locking-system will keep it's vacuum for several days if I am not mistaken.

Also, found a description on removing the distributor....will do.

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1974 MB 230 4 cyl auto Sold
1973 MB 280SE #12004
1970 MB 230/8 #53280
1970 MB 300SEL 6.3 #4509 sold
1968 MB 300SEL 6.3 #0335
1972 MB 280SE 4.5 75k miles sold
1971 MB 230/8 60k miles sold
1972 Volvo 142 60k miles sold
1969 Opel Rekord 1900 sold
1974 L508D Camper