Black dust on my rear bumper

[Pierre]

I need to know if it is normal, each time i drove my boxster S for 50 or 60 miles my rear bumper is cover by a black dust who look like tire dust ??
Someone have got the same experience.

[blue2000s]

Originally Posted by Pierre

I need to know if it is normal, each time i drove my boxster for 50 or 60 miles my rear bumper is cover by a black dust who look like tire dust ??
Someone have got the same experience.

Near the center of the bumper or along the wheel wells?

[Pierre]

Along the wheel wells and mstly on the bumper parts under the rear stop lens on both sides my boxster is yellow so it is very appearant i got some of that dust on the lower parts of the bumper center.

[boxster6354]

happens to me, nice fine dust to wipe off after my ride

[RandallNeighbour]

Probably tire and brake dust as well...

[landrovered]

Drives me crazy on my yellow boxster, it is especially bad when there is dew out in the morning. I think it is a combination of road grime kicked up by the rear tires and perhaps a bit of exhaust smoke and brake dust thrown in for good measure. My car can be spotless except for the dirt on the rear bumper. Now I take a damp rag and wipe it off when I see the problem. It does not happen when I drive the car later in the day or when it is dry out.