Hi guys. I'm having some interesting issues with my 2006 T1N Sprinter. My warning lights such as the ESP, Traction control, and other lights are coming on and my battery is not charging. When I start the engine and test it with a volt meter it drops from 12.4 to 12.1 volts. It's intermittent because sometimes the lights will go on and off when they do the radio will go out of a second and come back on. The alternator looks pretty new. Got the battery tested and they said it was good. Today I was stuck in park and couldn't move with the engine running but the dash lights were all off and the the windshield wipers were very slow.