According to the Driver and Vehicle Standards Agency's results of the Vehicle Market Surveillance Unit:
the Nissan Qashqai, track and real world tests gave results which were more than eight times higher than the NEDC (cold) test limit
Nissan advised that the size of the engine in this particular variant is comparatively smaller than some of their other models, meaning that it is working harder, and therefore producing more NOx. Nissan advised that they downsized the engine in an effort to reduce carbon dioxide emissions.
In the meantime Nissan has confirmed that a new engine will be introduced for this particular variant of the Qashqai, in the summer.
I assume they are referring to the 1.2 petrol engine?
Sandgrounder, Thanks ! very interesting find as you mentioned it looks like the 1,2L and it does not look good. It is amazing that this is the first I have heard about this, we have been looking around so might have to look a little harder now - Dave