Hmmm. I have the preceding E39 540i model and have both the regular
carpet mats and the BMW Winter mats. In the E39, you cannot use both
mats at the same time. Rather, the carpeted mats have to be removed
first and the rubber mats put in their place. They each are locked
down by large plastic pin-like fasteners that penetrate holes at the
corners and twist lock into place to the floor in the front foot well
areas. They don't move at all - they are like glued to the floor.
Remove all your mats and see if there are any places for fasteners in
the foot wells. If there are such places on the floor but no
corresponding fasteners on your mats then the mats won't work properly
and are likely not right for your car. Unless they fasten to the floor
they all move around, especially if they sit on top of another mat.
Michael
>> Stay informed about: 2004 BMW 525i- Winter Mats keep moving near gas pedal!