Help, I'm stuck in the middle of this and running out of time. I thought the block drain might have been that 19mm bolt in front of the starter but it was not.
Is it the 20something mm bolt next to the oil filter housing?

1974 450SE W116
Thanks

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63 220S W111
76 300D W115
2013 VW JSW TDI M6

previously-
73 280 SEL 4.5
86 300E 5 speed
2010 VW Jetta TDI M6