[Philth]

Normal consumption, as defined by most auto manufacturers, is 1 quart per 1,000 miles. The Touareg is right around that. I once had an Acura RSX that consumed 1 quart every 1,500 miles. Honda denied any claims that I made, asserting that the engine was defective. I even took them to arbitration and lost.

 

[Philth]

Every engine is different. My 2.0L TDI in my Jetta didn't consume anything at all. Oil level was full at every 10k oil change.

As long as you're nowhere near 1 quart every 1,200 miles, I wouldn't worry too much about it. VW probably won't do anything about it anyway unless you can prove something obvious, such as external oil leaks or turbo bearing leaking.

 

[Philth]

Just confirmed my 16's usage. Uses one "tick" on the measurement chart every 1,000 miles or so.