How do I replace the Low-Beam Headlamp Bulbs on a E-350 Mercedes?

I had checked my user manual before, but rechecked after your answer and found the "replacement" section. I am surprised that Mercedes actually does provide instructions. I also found the bulb type to buy. I love the car, but hate the idea of paying a mechanic fee for such a simple procedure. Thanks very much, you saved me a money I can't afford to spend right now. Jim