Hi Guys, Problem with my SL55 unfortunately. The coolant light came on the other day, obviously thought it would be something simple but when I came to fill up the coolant, the coolant tank was full. The engine fans turn on everytime I start the car but the temperature remains constant at 80. I thought it was a malfunctioning temp sensor so left it at the garage this morning. Just spoke to them and they said they are trying to etablish what the problem is but they arent sure. They said the ECU isnt giving off the right voltage, apparently less than it should? (Does that make sense) or the fan might be defective. Either way - this could end up costing me loads....cira 1k. Does anyone have any thoughts or something to cheer me up!