I shouldn't have, I think they only put the DPF on the 1.6 and 2.0 models. You can check buy seeing if there is a small tank to fill the fluid underneath next to the fuel tank
Diesel Particulate Filter. Filters soot particles from the exhaust gasses. And yes its only 1.6 TDCI and 2.0 TDCI engines that have DPF filters. The 1.8 TDCI doesnt.