Datacard is the build record for the car. Lists what was on the car when it left the production line and any additions officially added afterwards.
Post your VIN in the VIN Decoder thread and some one will generate the datacard for you. It may be attached to your service book anyway..
There is a yellow folder and inside there are a lot of specifications all in German on white paper, is that it.
Nonchalantly wipe your finger in the exhaust..
Is your finger clean ish?
yes = DPF fitted
No = DPF not fitted in which case well done .. You are lucky.