2012 Mazda3 - Car Shaking during acceleration ....WTF!?!

[sean2220]

Hey peeps,
I got a 2012 Mazda 3 GT Sedan (Automatic). The car now has 1,400km and I've been noticing a shake on the floor of the car when accelerating (noticeable when the car changes from 1st to 2nd around 30-40 km/hour). Its very evident when im in stop and go traffic.
If I accelerate quickly I don't really feel it so much. I did a Google search and came across a lot of people complaining about this issue but no actual cause. I know its not tire or rim related as I don't have any vibration on the highway (shocking as this is my 2nd Mazda 3) and the previous 2010/2011 had terrible tire vibration because of the crappy Avid S34,'s but this 2012 is actually good.
So anyway's.......ideas? anyone have this issue and found a fix?
I suspect it could be an engine mount because if it was the drive shaft it would shake all the time.
Again, only happens momentary between low speeds while accelerating from a stop.:bang

[09ms3]

if it is that new, take it to the dealership... warranty is your friend here

[bbbwood]

Fluid dirty or level low? Check this first, then take it to the dealer...go with them when they drive it.

[sean2220]

Thanks for the suggestion about warranty being my friend, I get it, however, before I have the mechanics tear apart my new car I thought I'd come on here and see if anyone else has ever noticed this issue before I take it in, that's what a forum is all about right?
Cool, anyway, im confident that its the engine shaking as it only happens on a slow/moderate acceleration (when shifting from 1st to 2nd exactly at the 2,000rpm range. If I accelerate to 2,500 as it switches to 2nd you cant feel it.
I can recall a TSB for engine vibration on my 2010, I wonder if the 2012 are having this issue, you'd think all previous TSB's would have been competed on the newest model.

[Booter22]

Thanks for the suggestion about warranty being my friend, I get it, however, before I have the mechanics tear apart my new car I thought I'd come on here and see if anyone else has ever noticed this issue before I take it in, that's what a forum is all about right?
Cool, anyway, im confident that its the engine shaking as it only happens on a slow/moderate acceleration (when shifting from 1st to 2nd exactly at the 2,000rpm range. If I accelerate to 2,500 as it switches to 2nd you cant feel it.
I can recall a TSB for engine vibration on my 2010, I wonder if the 2012 are having this issue, you'd think all previous TSB's would have been competed on the newest model.

didnt know there was a tsb for engine vibration on the 2010. have to look into that when i get back.. mind you i dont think i would qualify with my Rmm.. but hey.. anyway i would be surprised if there was one for your 2012. take it to the dealer. let them give it the once over for you to make sure its ok. ( and thats some free friendly dealership advice)

[sean2220]

Booter22-Hey, thanks for the message. Correction, it was a TSB that Markham Mazda performed on my 2011, not my 2010. :)
I've had good luck with Toronto Mazda, going to take it in this week.

[mazda32]

Same issue here with my new 2012 mazda...Less than 4k on it. I have taken it in twice now, first time they balanced tires.....Didn't fix it. Second time they claim they did an alignment. I still feel it.