oil in water

2007 cl500 w216: Oil in radiator: Can somebody direct me. I think I have transmission oil in my radiator. It is creamy yellow. This happened after the car fell off the jack on the driver side. Insurance are looking for a link between the incident and transmission oil in the radiator. All I know...

Got a Mercedes Sprinter 312. Noticed the other day oil dripping underneath it. Switched off engine and investigated. Oil on dipstick is within limits but lower than normal. No creamy deposits or water appears present. If i dip my finger in radiator header tank its just pure thick black oil...