lumpydo

I have a 2006 a4 Quattro S-line automatic. The issue I'm having is that, now that it's cold out, when I go to start the car in the morning, it just whirrs. I have to try and crank it 5-6 times before the engine will start. I'm assuming it's the starter. I had this problem with my snowmobile and I just hit it with some WD-40 and it was fine. I haven't been able to find any YouTube videos on how to remove the starter on this model. Can someone post a link to one so I can see how to do it? Or could it just be a solonoid?

Thanks