RE: Weird clicking sound
You're not the only one.
I'm not sure what's causing this. I monitored it closely and after I start driving it takes about 15 to 20 minutes and then it starts.
If I turn off the ignition switch it's gone. I turn it on even without the engine running and it starts again for about 5 minutes and stops.
I listened closely to where I thought it was coming from and it seems like I can hear fluid or something, moving through tubes.
A few days ago I got the impression that if I hit the brakes firmly, it stops too. When the decelaration is gone, it starts again.
Sofar it's a mistery to me.