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bonkers38's Achievements
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hi i have a 2008 is220 which has developed a heater problem its going from hot to cold when it feels like it, iv been topping up the coolant for the past few days as it appears to have alot of air in the system, now the engine temp is jumping up & down, maybe a sticky thermostat or headgasket? iv checked there are no signs of oil in the coolant