Honestly probably not. AAB and you might have a shot. Even then, the offer would be AAA and your teachers obviously don't think you're on track for that.
The guys I know from mech eng (housemates with 2 of them) constantly work hard, play hard, and got straight As. One guy I live with is serious about a career as an engineer, and he's already on it with work experience, placements, summer schemes, and worked hard in 1st year to get top grades to get the places despite 1st year not counting much/at all.
Not saying you arent motivated to work hard, get the experience, become an engineer etc. My actual point of saying that is they want people like it, and one of their main ways to determine such an intelligent drive is by selecting applicants with the top grades.
You could apply as a risk if the rest of your application is outstanding, but please only use one risk. All other applications should be offers of ABB or below.