I learned that "trick" from a German MB mechanic. He uses it on all of his cars, including the 280SE that he sold me. (The 108's and other, older models, use a rubber bellow to squish the fluid through the lines to the nozzles - You don't want crud to build up in those bellows, because over time their holding capacity gets reduced and what used to be a powerful stream, turns into a trickle. (besides the nozzles getting clogged).

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It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D