Really need more info for an answer to be correct. Is this a car? If so, the clicking could be numerous things from low oil level to a broken valve guide.
A ticking or clicking sound is probably lifter noise, the valves need adjusting
Perhaps clutch throw-out bearing?
A clicking sound when you turn the key could mean your battery is dead. It could also indicate the starter is going out.
the clicking sound is the blinker. when you signal to turn with your blinker the light flashes and makes a clicking sound.
That is lifter noise, they probably need adjusting
an idling diesel engine or snoring :]
The orange light along with the clicking sound means that the computer is loading
It could be the belt tensioner or perhaps a tension transferral from a faulty harmonic balancer.
My car (year 2000 S500) has the car shaking a bit and clicking or clanking sound when idling. Was told it is due to bad catalyst converter (the inside was broken). Are those the symtoms or there are other symtoms? Please advise. Thanks.
If it is done by one person the sound is clicking, if it is done by multiple people it is an annoying sea of clicking.
Valve lash needs adjusting or you have a lifter that is sticking.
It is a clicking sound