DPF for particulates.
AdBlue for NOX emissions.
Totally different reason for fitting either.
Adblue is another expense as it has to be replenished at service intervals and it isn't cheap.
As I said... in Wheel COTY they mentioned on more than one occassion that the TDI was the weakest link in the Polo range. That it costs a significant amount more than a 1.2TSI would have me discounting it as an option.
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