How do I replace my Audi's power steering pump?

I have noticed that the power steering in my Audi is not functioning properly and I suspect it may be due to a faulty power steering pump. Can someone guide me on the steps to replace it without having to take it to the dealership?

To replace your Audi's power steering pump, first disconnect the negative battery cable and drain the power steering fluid. Then, unbolt the pump from its bracket and remove the belt from the pulley. Install the new pump in the reverse order and refill with the appropriate power steering fluid.