My 2005 e500 4Matic sat for about a week while I was waiting for my new Arnott air strut. Got it installed and when I turned key on there was no dash cluster at all. I let it sit for the night and the next day display came back for a split second and it read ( Display Malfunction ). Could this be a low battery thing???? Im stumped, it worked fine while I was cycling through the system when I was exhausting the air out of the strut before installation. Thanks for any insite...