Fuel Injector problems of the 2013 Mercedes Benz C250

Sluggish accellaration. This has happened several times during the last 2 months. It has happen on a take off from a red to a green light. Where I'm completely stopped and from 0 mph speed I start to accellarate & the car feels like it stalls, almost as if it's getting no fuel. I can have my foot totally down on the gas pedal & the car hesitates or doesn't move at all. I had an incident where I was behind a semi truck, I attempted to change lanes fast before incoming traffic. The car did not move & I almost got hit from behind because the car would not speed up when I tried to accellarate. I've had my best friend in the car while this took place & he was very scared & so was I. I'm not sure if the fuel injectors are pumping the gas fast enough to get the car moving. Then again, what do I know. I'm a girl. All I know is, something is wrong with this car & it's not safe to drive. This does not happen every time but it happens quite too often. I'm to the point now where I don't trust passing other cars and I'm extra cautious when having to pass cars or from lane to lane. I don't trust this car. I've contacted the dealership today & have an appointment to meet with max at the dealership in anaheim hills, CA. I'm hoping I can have an early termination of my lease or get into another car (hopefully a safe car).

Was accelerating up hill after making right turn; check engine light came on, vehicle seemed to stall and would no longer accelerate in traffic situation; maximum speed vehicle would get to is 17 mph. Immediately took to dealer who ran diagnostics, but did not identify problem; performed computer "reset" and told to bring back if more problems. Several hours later, same issue returned with maximum speed of 7 mph; cel and multiple dash warning lights including traction control appeared. Vehicle was towed to dealer and dealer was notified of safety issue and potential for accident. After five days, dealer called and indicated had replaced throttle motor. Dealer requested to keep overnight and next morning engine would not start; found pull on battery. Approximately 4. 5 weeks later, original acceleration issue recurred - while passing a tractor trailer in a passing zone on two-lane highway; was unable to complete passing maneuver and had to fall back in behind tractor trailer just in time for an oncoming vehicle to pass in other direction, avoiding collision, but underscoring imminent safety threat of this vehicle. Vehicle was returned to dealer yet again and after more than one week, dealer indicated that fuel pump and injectors had been replaced per instruction from mb USA. Again requested to keep vehicle for additional testing; vehicle remains with dealer as of today. The acceleration issues with this vehicle present an imminent threat to safety of both driver and other vehicles.