First of all let me say that I already read [this question][1] and its answer, so it's clear to me why diesel-powered cars need a warm-up time.

My question is: do *modern cars* need it too? I have VW Golf VI (year 2009) and I normally leave the system on for a couple of seconds before starting the engine... but am I being too cautious, or does the car *really* need it?


  [1]: http://mechanics.stackexchange.com/questions/15221/why-does-diesel-engine-need-a-warm-up-before-the-start-up