A mechanic neighbour of mine has just managed to release the bonnet without smashing the Grille although it took him nearly two hours. He took off the panel underneath to gain access and he then had to take off a black box that was protecting the lock, he fiddled and fiddled and then he got me to lift the bonnet as he did something to the back of the lock. We've now taken the lock out although this was a nightmare as well as they use shear bolts that have no heads so he had to drill them out.
Mr Cheesed off!, March 2009