similar problem, resolved today.
Just picked my 430 up from service this afternoon. I had a similar problem, BAS/ABS light came on Sunday afternoon. I happened to be near my dealer so stopped there to check it out. The sales guys fiddled with it for a while, but when we noticed the brake lights were out we gave up, and they put me in a ML320 loaner. They spent 3 hours isolating it to a piched wire between the rear seat and hat deck, and had to order a new wire section. I had called 800 Mercedes and they said park it.<p>The regional service manager was there, and was taking the wiring harness back to the factory to do some follow-up training for someone. this problem took about 2 weeks to appear. <p>: Last night as I was driving from work, the BAS light came on and stayed on. Anyone know what this means ?<br>I immediately stopped on the side of the road and turned off my computer. I tried calling 1800-for-Mercedes and<br>guess what ? No answer. I started her again and the light was gone!! It's been okay so far but do you guys think <br>I should have this checked ? What is BAS anyway ?<p>Thanks<p>David<p>