All sorts of theories about eradicating brake dust. But think about it, there will always be dust. There has to be - rub two compounds together, something has to give. To get good stopping power, one of those compounds must be softer than the other…
It is a myth that slotted or drilled discs reduce dust. How can they?
There will always be dust. Ceramic pads produce dust, but it is brown and virtually blows off the wheels. My opinion is that EBC Redstuff ceramic is a harder compound than Centric and so might, again with my experience, require more pressure for the same stopping power. I found Akebono even harder compound, and was prone to cause squeel on some discs.
Finding ceramic pads for the SLK might be difficult. The fronts, depending which model, might be the same as those for the M Classe - try cross referencing and you will find them somewhere. I do not think anyone is making ceramics for the rear yet (but try because they will one day). The 55 will not have a problem - the fronts are covered and for the rears, if not listed as 55, are the same as the M Classe.
The rest have black dust. Horrible. The thing to find though is a pad with non-corrosive dust. I am trying out EBC Yellowstuff on my fronts and Centric metallic on the rear. Unfortunately EBC have the rears way down on their to-do list. The Yellowstuff is definitely not corrosive like the OEM pads. It washes off very easily, but it is quite black. The rear Centrics imo are as bad as OEMs.
As an aside, I can say Yellowstuff have great bite.