Will you have to drain the gearbox oil to change the reverse switch on a Renault clio 02 plate?

Yes, you will typically need to drain the gearbox oil to change the reverse switch on a Renault Clio 02 plate. The reverse switch is usually located on the gearbox, and removing it can cause oil to leak out. To prevent any mess and ensure a proper seal when installing the new switch, it's advisable to drain the oil beforehand. Make sure to replace it with the appropriate type and amount of gearbox oil after the switch is replaced.