I have not used my CLK 320 for a while. When I went to use it the battery was flat. There was not enough power in the battery to open the boot.....The battery is in the boot. I had to crawl through the back of the car to get to charge the battery. Have I missed something ???? Keith

 

i had that same problem but then realise if you lift te bonnet on the topright there is a black box and cover ,if you lift the cap you can jump start from there

 

Thanks for that. I can find the black terminal but not the red. Keith