Hi. My zafira has been steaming and losing coolant. I've noticed (although might be a coincidence) that it only steams when the heating system is on. The garage have said its the head gasket but I'm not entirely convinced as there is no other symptoms etc. I spoke to a vauxhall specialist who said often when the oil cooler or seals need replacing that it's misdiagnosed with head gasket. Does anyone have any idea what could be causing this issue? Or is it probably the head gasket. I ordered a new oil cooler to try that but I'm near at my wits end here. Thanks
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