Start with intermittent sound behind dash board

if it was mine, I would buy some "fan belt dressing spray" and spray my fan belts or have them adjusted. first spray them once, if sound stops a few days, have the tension adjusted. if spray does not work the first time, this is not the problem.

It could be that the metal ductwork is now heating up and expanding after being cooled. But that isn't a constant click, very intermittant, so if your clicking is constant that wouldn't be the problem.

If it is a constant click it could be that you passenger side sensor is calling for increased cooling and not senseing that the AC was turned off. If the clicking stops after you turn the engine off and then immediately restart it, that is probably the sound.

Depending on your location, that sounds like the brake symbol. Is the emergency brake pulled? If not, does it come on intermittently? If it does, it could be low brake fluid.

hi there is it from under the bonnet if so remove the alternator belt prob just a tensinore. or a wheel bearing on its way out. hope this helps you

It sounds like a poor Ground connection, Start by checking the connector that connects to the Instrument Cluster then see if one wire is terminated to the Metal components of the Dash Board. This would be the Master Ground connection for ALL Instrument lights and typically would include any other Lights on the Same Circuit. You will most likely find a loose sheet metal screw making this Ground Connection. With a high resistance connection the lights would be somewhat dim. If they flash between Dim and Bright it is an intermittent connection causing it. Almost always this will be found to be a loose screw connecting the Ground to the Chassis.

hi, the inner wheel arch linings should be made of plastic,( if my memory serves me correctly ), make sure that all of the plastic rivvets are in place, .....it doesnt sound like a very serious problem, it sounds more like cosmetic than mechanical

some debris make have entered the blower fan, remove same and check for debris

The rattling sound coming from the a/c system may be a sign of a failing blower, or there might be an object hitting the blades.

This can be inspected by an a/c technician, or if you are patient enough, you can check it yourself. Many automotive a/c blowers are located behind your vehicle's dashboard glove box.

Hope this helps.

Could be that your Heater fan is wearing out,,,or maybe something has fallen into the defrost vents and is rattling.
does the rattling increase when you turn the fan from low to high?

sounds kinda silly, but any coins etc in the cup holders up front?? They rattle like crazy.

If its behind the cd / radio this item is easy to remove yourself. Start at the bottom from cup holder section, snap itout on the front and the sides are simple screws and plugs.

Did it myself to take coins out of the CD player that my 2yr old inserted??!! DOH

Good luck