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Originally Posted by Krueger
I guess I answered my own question - up until last year when the CDI was introdcued, all MB diesels were indirect. The point in my original message then holds. VW and American made diesels perfected the glow system before MB - due to the fact of direct injection diesels.
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I wouldn't criticize the IDI system. MB was the first to make a diesel passenger car and no one has more experience with diesels, or cars for that matter, than MB, though VW has a long history of diesels too. The IDI system of its time had some significant advantages over the DI system, namely quieter operation and higher maximum engine speed. It wasn't until a few years ago that engineers were able to make DI engines quiet enough and with a decent redline. As far as American diesels, other than perhaps the Cummins and Duramax they are a joke, particularly GM's attempts at passenger car diesels in the 70's.