Hello, I have an old 2000 clk and have a big problem. I disconnected the battery and shut the boot. The boot locked itself and now I can't get in it to fit the new battery. I have been in a situation before where the battery had gone flat with the boot shut and I used the jump start under the bonnet to power up the boot open switch with a battery charger. From what I have read this can be done with the battery disconnected however I have tried and nothing, it doesn't seem to put any power in at all. I have checked fuses and they seem ok. I really don't know what to do?.. any help would be much appreciated!