alternator shot, driver's power seat module to replaced also (this was not causing a draw or causing the alternator difficulty- per mb shop foreman). other minor repairs to be done at this service, as well as a scheduled major servicing. fuses to be replaced per friendly recommendations (thnx, danny). valve cover gasket leaking too. this wont be cheap - still seems odd that this would happen right out of the shop for other electrical repairs. insights? suggestions?