Is your 2017 - 2018 cx-5 running rough on cold days, check your engine mounts

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2018 Mazda CX-5 GT
It turned extremely cold (-31C) here a week ago and my 2018 CX-5 GT started running extremely rough during startup and acceleration. I discussed this issue with a few people who had the same problem on another Mazda forum. Here is a copy and paste of my final reply on that forum...

They ended up changing my rear engine mount. Only took about 30 minutes to complete. I talked to the service manager and he told me that they changed quite a few of these over the past week or so. He said they got a notice from Mazda head office about this problem a few days ago. Turns out that since the introduction of the 2017 CX-5, Mazda in an attempt to make a quieter Vehicle, Mazda changed these mounts from rubber to some kind of gel fill. When it goes below -30C this gel gets hard and cracks. He said they replaced mine with a rubber mount so that this won't happen again. I won't know for sure until it gets cold again. Right now its only about -20C and the car was warm from being in the shop. According to the shop invoice the new part is KN3L-39-040. Hope this helps anyone who has engine vibration and lives in a northern climate.
 

yrwei52

2016 Mazda CX-5 GT AWD w/Tech Pkg
Contributor
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Plano, Texas, USA
Is your 2017 - 2018 cx-5 running rough on cold days, check your engine mounts

This issue has been reported since gen-2 came out in 2017 and owners experienced the first cold winter in 2018. Mazda was suppose to come out new liquid engine mounts which is functional in extremely cold temperature. Looks like Mazda is still working on the resolution hence the vibration in cold problem is lingering on ⋯

New cx5 GS vibration issue

Hey guys, got word on Friday that Mazda is aware of the vibration issue in cold weather and are currently doing testing and coming up with a fix. They're hoping to have a fix before next winter, it's too late to do anything for this winter.

I'll see if I can get more info to pass along.