Where is the sensor switch for the cooling fan on a t reg astra van?

In a Vauxhall Astra T-reg van, the cooling fan sensor switch is typically located on the radiator or in the engine block, depending on the specific engine model. It's often mounted near the thermostat housing or attached to the radiator itself. If you're having trouble locating it, consulting the vehicle's service manual can provide precise information for your model.