Help! 1995 840ci.. Start car and gauges are dead.. Nothing lights up... If you rev the car up to 3k the tach kicks on and all the warning lights come on for 2 seconds including low fuel light and red overheat light. Then they go off and tach stays on... Fuel and temp gauge don't work at all.. Speedo and odometer work fine. Is this a SI battery issue in the cluster? Don't think it's the voltage reg cuz no flickering in lights or anything.