2008 E63 Instrument cluster
hope someone can help answer this observation. I have noticed on a few occasions I have gone out into my drive way and seen my instrument cluster on, Just the speedometer. It then goes off after a few minutes. A few minutes later it will come back on then will go off as if its in a cycle. I also notice the word "TEST" constantly displaying on the screen of the a/c control unit.
Any ideas? Thanks


