My 2010 S400h will not start. Everything lights up on the dash.

What is your question?

Previously it died when I was driving it and come to a sudden stop and sometimes it started right up. Sometimes it had to wait for several hours then it started. It did that for several months and now it has not started after a day. When the car was running I took it to the dealer and the dealer said I need to change the Power Control Motor Control Unit to start with. Another mechanic suggested changing the inverter. The car has 74k mile. It is a lemon law buyback but it is very nice and when it runs it is like a new car. The hybrid screen shows the battery getting charged normally and sometimes even goes to 100% when the car is going downhill.

What makes this problem better or worse?

No idea

How long has your 2010 Mercedes-Benz S400 had this problem?

Several months