OCP & temp sensor There is a temp sensor in the overhead console. There is a thermistor sensor and even a little fan so it reads the actual ambient air temp. This sensor is apparently disabled when the top is down. here is a link to discussing this sensor:https://mbworld.org/forums/sl-class-r230/867326-electronic-guru-s-help-component-part-temperature.html and another:https://mbworld.org/forums/sl-class-r230/804887-interior-temperature-sensors.html