I'm sure this has been posted someplace BUT.....
On a 1993 300D, 2.5 Turbo Diesel, Anyone know what the voltage is to the Glow Plugs and the time duration that they have voltage to them. Do they stay on at a lower voltage and what are these numbers & times, also how do you make this check and what controls all this action?

Thanks.

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Den
1993 MB 300D 2.5
2001 VW Jetta TDI 5 spd.
2001 new bug TDI 5 spd.
Motorcycles