I have a 1997 e320 and it has #3 in the front. I believe it is the bumps on the pads. I felt three on my spring pads. I believe after reading the forum all cars are different so its best just to lift your car up and feel the bumps.
I plan on going #1 pads on mine.
Vehicle: E320 2002, VW Passat 2003, Toyota Landcruiser 2007
Posts: 140
I think it depends on the grade of the car is it Avantgarde? Elegance? or Classic? the Avangarde is lowest (#1 pad I believe), elegance and classic they have maybe #2 or #3.