Slk 320 1999
 

Hi all. I've owned my slk for a few years now. However it's been garaged for the last couple. I started it and drove it bout 10 months ago and all was ok. Just went to start it and dead as a door nail . So ive slow changed the battery and tried again. All I got was s9me sort of click , some electrical noises but no cranking. I've read other forums that say all kinds of things from costly reprogramming of the immobiliser to simple stuff. Im a DIY mechanic so need help. Where should I sensibly start looking. The battery is only 1 year old but was dead when I first tried to start the car, haven't tested it for output. HELP . MATT