I bought a mii 6 months ago and nearly every month iv gone back to the dealership to tell him there's another fault. The ecu failed 3 days ago and the dealership said it was the key that was faulty. I kept on telling them it wasnt the key but they never listened they said they fixed the fault, which they didnt. The engine cut of while I was driving after leaving the dealership. I was not impressed at. I rang the aa they towed the car back to the dealership. After going back to the dealers they said my battery is the cause of this, I laughed at the guy because the aa guy said my battery is fine. I asked the dealers for a courtesy car but they said I will need to wait three weeks. I received a call 2 hours later saying my car is completely dead and my ecu is faulty and is coursing all this. Cant believe the ecu failed after 6 months.