My instrument glass is foggy I'd like to clean it somehow?
Any idea how to clean the inside of the Instrument Glass on instruments like Speed, rpm etc. You need to remove the glass somehow but not sure how?

 

At least on the Series three the black bezels twist off (counterclockwise) and you can then remove the glass and clean it. Start with one of the smaller instruments as they're easier than the big ones, but they all work the same way, and obviously you need to remove them from the dash panel to do this. Once you twist off the bezel you'll see there's a rubber gasket on top of the glass and underneath the bezel that you'll want to carefully put back. Mine were a bit stretched out but I was able to get them back properly with a little fussing. Clear instrument glass does make a difference.

 

Thanks for the reply but I've tried twisting them off and I can't move them at all. Perhaps and probably my Sr muscle's. Next time my son visits I'll ask him to try.

 

Might be worth warming them up a bit (just a bit) to soften the rubber gasket. I didn't think mine would come off until I took one to PA Speedometer and the owner just twisted the bezel off.