Look where the rear doors close and you will find two plastc covers - take these off and you should find two nuts wich fit the extension piece on the wheelbrace spanner unscrew these and cage with spare wheel drops down. Bit of a bugger to get wheel off carrier because its dirty and cramped, but that's the way to do it (assuming it's the same as a Citroen Relay!)
davidmckaig, April 2012