Chris74 Posted June 18, 2021 Share Posted June 18, 2021 Hi Radiator fan stays on and I have a coolant warning come on to say top up coolant but it's full. Am I right in thinking that a new thermostat is required and apparently sensor on coolant bottle as failed. New sensor or is sensor in the bottle(in which case just get new bottle?). Any help appreciated before I take to garage. Prefer to do myself and save dollar. Quote Link to comment Share on other sites More sharing options...
Vauxhall Owners Club Posted June 29, 2021 Share Posted June 29, 2021 I would assume that the warning lamp to say the bottle is empty is in fact a high temperature warning and if the fan is staying on then it could be a coolant temperature sensor fault or even a head gasket failure Quote Link to comment Share on other sites More sharing options...
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