Going off what your friend told you, and in order to keep your car from just dying on you, I would recommend you check/replace the electrical components he listed.The other things he listed (ie. CV boot, and power steering flush) although important this would not explain your car spontaneously dying on you. You need to be looking at the three components that make your engine run: Spark, Compression, and Fuel.B/c your car is randomly dying and then re-starting kind of rules out the compression issue. From there look at spark and fuel issues.This is why I recommend tackling the electrical issues listed. But i still stand by my original prognosis of fuel pump issues. It could be faulty wiring to the fuel pump or maybe the fuel pump is going bad.Did your friend give you the CEL codes?