mazda 3 2009

Hey! Im currently deciding on bying a Mazda 3 (2009-2013). I have never owned a Mazda before and i would love to hear your suggestions on which engine to choose. I am considering both diesel and petrol powerplants. Thank you!

So my A/C light works when it is in the 1 / 2 / 3 positions however the blower doesnt work. Then when i switch the blower to setting 4 the A/C light switches off and the car will blow cold air for 2-4 secs then will blow room temp air around. I have checked relays and fuses. all ok The A/C...