I have a 2010 A3 2.0TDI S-Line sportback - a simple question, does my car have this particulate filter, how can I tell. Bit concerned as just read in What Car that if you don't drive that far from home you should "self-clean" the filter by driving faster than 40mph for 15-20 minutes 
I understand the theory, but what a design fault, do BMW, Merc have these filters fitted, what's the cost of replacement?
Cheers

I understand the theory, but what a design fault, do BMW, Merc have these filters fitted, what's the cost of replacement?
Cheers