By removing the wires, you may have "shorted" the circuit somehow and blown a fuse. You need to check the fuses and replace accordingly. More info on fuses can be found in the vehicle's handbook.

If the car has an automatic emergency cut-out (check in the handbook) has it been triggered?

You say that the car is eletrically dead, totally. It's got to be the battery. Did you disconnect it before you started playing with the light wiring? Is it properly connected now. Disconnect it. Check there is power in it. Reconnect it securely with all the wires. There are two big fat leads to the positive terminal.

The engine fuse box is in the scuttle under the boot lid under a plastic flap that accesses the wiper washer reservoir.

The rear light clusters are plastic. They are earthed by straps or leads to the body close to the lamps in the boot under the carpet on both sides. Clios are prone to no end of problems seemingly unrelated to the rear lights through failure of this earth, or corrosion on the lighting connections.

But loss of all electric power everywhere means there isn't a charged battery connected properly. Or possibly a main fuse in that auxiliary fuse box has gone. Remember there are two leads to the positive terminal. One is direct to the starter motor. The other is to the electical system. If that isn't connected you'd have no ignition, no nothing.

Edited by avaster on 01/06/2013 at 18:08