#mazdaspeed

So i've been going through this aggravating thing for months now and its becoming quite unbearable. Ever since i disconnected my battery to change my spark plugs with NGK Iridium 6510 plugs on my 2010 Ms3, it bucks and jerks rather violently when i hit bumps and uneven pavement. It also does it...

About 4 days ago I went through a puddle and it shut my car off completely and now it won’t crank or start at all. Nothing sounds like it’s engaging. looked at the fuses, starter, battery and I even took the spark plugs out to make sure there was no water in the engine but nothing! Also cranked...