Why has the windscreen washe rear demister and air-con all stopped working in your Renault megane oasis 2006 1.4?

The simultaneous failure of the windscreen washer, rear demister, and air conditioning in your 2006 Renault Megane Oasis could be due to a blown fuse, as these components are often linked to the same electrical circuit. Additionally, there may be an issue with the vehicle's electrical system or a malfunctioning relay that affects their operation. It's advisable to check the fuse box for any blown fuses and inspect the wiring and connections for any signs of damage. If the issue persists, consulting a professional mechanic may be necessary for a thorough diagnosis.