I bought this car MB E320 with 1110106mi. on it last Dec 18,2014. The engine first stalled on me February8,2014 after I parked after traveling about 10 mile from my house back and forth. Brought the car to a MB specialist near my neighborhood. Technician checked the fuel pump delivering only about 20 psi on the pressure gage. New 2 fuel pumps was installed and after 2 weeks the engine stalled again. looked like the fuel pressure is erratic. Electrical harness were checked due to erratic voltage but not confirmed yet. It could also be the fuel control unit. still on the shop for further evaluation. Any suggestion is welcomed.