Hi there, i have a 2009 merc c180 bluefficiency auto. I was driving normally, not fast or frantically and all of a sudden the car just had the tendency to move jerkingly. when i pressed the accelerator it would just growl trying to accelerate. i started using manual mode and it changed gears but with the same effect of moving jerkingly. when i arrived home and stopped the car i noticed the engine making a clicking sound and when i let it roll on drive it would roll forward very jerkingly. i then switched off the car, waited about 10 seconds and started it again. it then sounded fine revved normally. Is there any problem with my car that i should know? it is currently approaching 30 000kms as it is just my weekend car that is started in the mornings before i take my other car and go to work. Thanks