I was gonna pop the hood on my MB, but Garfield is on it sawin' a log. Didn't have the heart to wake him.
Anyway, it's pretty easy to spot. Open your hood and follow the black air intake up toward the air filter housing. It's maybe 6" before the air filter housing on the right side(looking towards windshield). In my case you squeeze a couple of small plastic locks on each side; then turn to remove.