Hi...I currently have a CLK in my garage with a dead battery and the doors locked. Last time this happened I was able to use the key to get into the boot and crawl through to get the door open. This time neither the boot lock or the door lock will oblige....any tips? Failing getting the door or boot open is there a tricksy way to get the bonnet open so I can at least charge the battery? In me defence, this car is my girlfriend's, does about 600 miles a year and she "doesn't have time" to follow my instructions of "take the bl**dy thing for a drive for at least 2 hours once a month."