EGR valve is on the drivers side of the engine towards the rear. It's a cylinder with wires going into the top of it. 2 bolts on either side of the baseplate. If you've had the fuel rail recall done, you'll have to move the stainless steel fuel rail, if you still have the old nylon one you shouldn't have to remove it. Just have the dealer put the SS one on after you've cleaned the EGR valve, under the recall it's free.
I'm including a couple pics of my old one. Cleaning works most of the time but mine was too far gone and I had to pick one up off eBay, cost about $35. Sorry the pics are a bit blurry.