Car won't start...W123 300TD

[crazy4diesel]

Hi all, it's been ages since I've been around, but I was getting the beast out, and was getting it ready to take to an event, when I plug in the key and turn it to ignition on thinking the glow plug light will come on. But, instead the seatbelt light is flickering, there's a loud buzzing coming from the thing pictured, no glow plug light, and when you turn the key to start position....there's nothing, starter doesn't even engage.