Started up my 2005 audi a4 2.0 tdi up last night and all i saw was the whole drive was filled with smoke. could not smell if it was oil or antifreeze cuz im all bugged up with a cold. got the mrs to rev it up and the smoke just got worse, so bad that i could not see the car. poped the hood, coolent levels were fine and checked oil which was low but the car had just been started. I gave it another shot an started it again, same thing but now as you rev it up engine misfires and there was a slight rattle from the engine. what could it be? turbo? headgasket?
any help would be great
Thanks in advance