The one I bought from a dealer two months ago is BQ 1 03 0004 with a Spec of 325.0. It needs to be diluted.

Look at the directions on the back of the container below "ANTICORROSION ANTIFREEZE, the third paragraph down and directly above "DIRECTIONS FOR USE." That paragraph explains that the coolant mixture in the car should be 40 to 55% antifreeze. There is also a table on the right side of the backside of the container that shows the number of quarts of anti-feeze needed to provide freeze protection for each size cooling system (a quart is roughly the same as a liter). Both show that this is a concentrate that should be diluted with water.