As the launch of the Alabama-based 2009 BlueTEC family draws ever closer, the industrious press wordsmiths of Mercedes-Benz wanted to take a moment to educate you yet again as to what you can expect from the forthcoming ML320 BlueTEC, GL320 BlueTEC and R320 BlueTEC models. Because it's a topic we've already detailed on numerous occasions, I will abstain from recapitulating that which we've already told you. However, if you missed our prior BlueTEC coverage or you just want a refresher course on the trio's clean diesel technology, you can find the full press release and a plethora of photos showcasing each of the three models immediately after the jump.