I have a 2001 Mercedes Benz E320. It was running fine and I got a dash warning to "check battery/alternator for low power" and then about a mile later the car died. I have a portable generator so I gave myself a jump and the car started but died about a mile down the road. I got it towed and bought a new alternator for it. CAR STILL WOULDN'T START, so I bought a new battery for it. Car still won't start! HELP!!!!
1 Answer
Your climate control unit has a hidden menu that will allow you to verify voltage. Take a look at this video, it will show you how to access the menu.
https://www.youtube.com/watch?v=qcWFvfRvJH8
If the electrical system is healthy (sufficient voltage, strong cranking, spark verified) then the next step is to verify you have sufficient fuel pressure.