I got my battery checked out and it is 100% perfect. But just to make sure I borrowed a new battery from work and put it into my car and the car still does not start unless I jump start it. So I know now that it is not the battery. I am going to check the voltage regulator on the alternator to see if it needs replacemen. I called mercedes and they said that the part will cost $95.00 CND. I called a few aftermarket places and they said the cost would be $59.00 CND. How can I tell if the regulator is worn? If after I check the regulator and if it is still in working conditon what else should I be checking. I am still wondering if the starter neededs replacement and or the alternator.

Let me now!

Thanks,

Fab