My Connect is losing about 1 litre of coolant in 40 miles, no visible signs of leak. No water in oil, cannot see/smell coolant in exhaust. Have not had a coolant test for exhaust fumes yet, so could be headgasket. I changed reservoir cap. Losses are not consistent, occasionally I don't lose so much & sometimes more. Garage looked for leaks & changes thermostat, seemed to work for firat 30 miles, but now I am losing coolant again. Quite a bit of airlocking. Sounds expensive, only had the van 6 weeks, it is an 08 with 70K miles. any ideas. Many thanks Nick
