Leaky injectors should be covered. Does your car have n54 or n55 engine.
There is a campaign for bad injectors on n54 engines. Something like 8 years and 80k.
How many miles on your 2009? Are you outside the 4 years and 50k?
Here in Ca. That is part of the smog and fuel delivery and even out of warranty they would have to replace injectors and anything else emission related.