Hello and welcome to just answer.
Yes there is a issue on the injectors in the 2.0PD engine and the first thing that you need to do is to contact your local Audi dealership. They will be able to advise you if your car is in the affect group. If it is then you will need to get your car to the dealership and they will carry out the repair for you free of charge.
Most cars should of had a recall letter sent to the owner but some do get mislaid when ownership changes hands.
I hope that this helps and if I can help you further please feel free to ask