Moisture in the clocks

Hi road sprocket, put dessicant or bag of dry uncooked rice under your gauges and wrapped with cloth then plastic bag, you can leave this unattended for days. No risk of damage, this also works for phone and tablet PC's that haven't been totally imerssed in water but maybe at risk of shorting out from a minor spill !

 

Yes, the rice trick worked on my sons iphone after he left it outside all night (the little tw*t!)

 

sounds like the anti mist coating is gone on the inside.
I usually clean with neat fairy liquid and leave to dry. this usually stops it. potato juice is supposed to work too.