One problem related to radiator has been reported for the 2002 Mercedes Benz ML320. The most recently reported issues are listed below.
I was pulling away from the curb, steering wheel started making whining noises and harder to turn. I continued on city streets then to a freeway where my car began to overheat. I pulled over at a gas station opened the hood and could see fluid all over right lower driver side. It seemed to be coming from a hose by the power steering cap and the right side of the radiator. Under the car same spot right passenger side I could see power steering and radiator coolant leaking from that area.