Mercedes Glitch that is. We went into town Monday and the 300 td wagon was running fine until our last stop. Went in and made our purchases, loaded up, turned the key and nothing. The battery was dead, no warning of any kind, it had started fine up until that very moment. Some kind soul took pity on us and jumped started it for us. I pulled the battery as soon as I got home and took it to Auto Zone for a free check. Their tester said the battery was shot, $75.00 for a new one, gulped and coughed up the $75.00. Went to town again today, had a lot to do, stopped several places and went in to eat lunch. Come out and the same story, dead battery, again we were fodrtunate enough that someone jumped started it. On the way home the ac, and fan didn't work at all, and the tach seemed to work at only 1/2 speed. I assume the generator isn't working and neither is the idiot light, I can't believe those German engineers didn't put an ammeter on these cars. I have an old ammeter here but I don't remember how to hook one up. Can someone tell me how to wire one up to check the gen., or suggest some other troubleshooting idea? If it's not a bad generator any other suggestions/ ideas would be appreciated.

Thanks