e220cdi 2007

Hi people. I left the car for 3 minutes on a average gradient slope, with the gear in P handbrake in, engine on. I went inside a friend house. After I went back to the car I got scared how much blue smoke was coming out from the exhaust pipe. I have the car for about 10 days. How it's possible...

hi guys I have a e220cdi aventgard 2007 merc I am getting a slight smell when the fan is tuned on for heating or cooling, I think the air filters need cleaning or replacing can any one guide me where the air filter or filters are located and how to access them pls. I have located the pollen...