Then that doesn't account for differing experiences.
I have been wondering why do all of those transmission jerk / lurching complaints started from MY 2018 CX-5, the time when Mazda modified the SkyActiv-Drive transmission to accommodate new cylinder deactivation? Not sure the 2.5T’s transmission made the same change, but I believe the problem has to be related to the change to the transmission since 2018.
Honestly, you won't know until you get there. In this forum or any other you'll find posters reporting many years and many miles of trouble free driving while others report serial issues for the same make/model/drive train.I'm also experiencing jerkiness and occasional hesitation under 30 mph. Can't figure out whether I missed it on the test drive or what, but it's enough to concern me about longevity. I just want to make it well over 100k without issues, and this doesn't inspire confidence that the drivetrain is operating smooth as butter.
To recap, I had TSB 05-002/20 applied. That TSB first came to may attention in @Dark5tar post #202 above. Just to clarify, is that the one you had applied?I say the transmission programming is at issue. I notice when pulling from a stop and accelerating fairly hard, I need to "floor it" to get the car to move.....it will then downshift and move the car. It's almost like I'm in a manual trans. pulling out in 3rd gear and need to downshift. IMHO, I don't think this will affect transmission longevity. Please post any updates or symptoms.
Were you in the car when the mechanic and service manager tested it? If not, you should be driving to recreate the problem for them. Other than that, I'm out of ideas.Hello, Correct, it was TSB 05-002/20 that I had applied.
I concur with a "lug" but my car will shift into a lower gear or two; even though it should be in the lowest gear when pulling from a stop.
Same on a '18 CX-5 GT from Day 1.Same as above. I noticed it fairly early on. Its always when coming to a stop and especially if Im going from 50+ mph to a complete stop. Usually the shift from 3rd to 2nd and 1st is kind of clunky.
note that the total ATF fluid capacity is close to two GALLONS including the fluid that's held in the torque converter. So 2 ounces isn't going to matter as far as overfilling. What does the dipstick show when measured on level ground with ATF temp of 122°F?Just giving everyone a little bit of details about my journey with this problem, since I have been learned a lot by reading other people's comments. To solve the low-speed transmission hesitation problem, I went to the dealership and was told nothing was wrong with my car, and there was no error code in the system. They also update the software for my PCM and TCM. But the problem is still there. After coming back from the dealership, I did my transmission fluid change (ODO=46K) by myself (with replacing the transmission fluid filter by removing the bottom pan). I measured how much I collected and filled it up with the same amount (~4.5 QT, if you do not remove the pan you should only need ~3.5QT). I could feel the car was smoother, but it did not solve the low-speed transmission hesitation. I also did the throttle body cleaning myself since when you do the DIY transmission fluid change; it just takes you very minimum effort to clean the throttle body. The last thing I did which I feel is the key to solving the hesitation, is by adding an additional 2 oz of transmission fluid. I have been driving my car for a few weeks, and I do feel a significant improvement. I do not know the reason behind it. But, it seems I solved my problem.
NOTICE: People who want to try this need to keep in mind that I am not sure whether adding an additional 2 oz of transmission fluid will cause any potential damage to your transmission or not. I am not taking any responsibility for my comments. I am not a professional mechanic. I am only a car care nut who is enjoying doing car maintenance myself.
Here’s the problem right there IMO. Those who bothered to check the factory ATF level before any ATF changes have found the factory fill is low! Added the info that you said ~4,5 quarts needed for dropping pan, and ~3.5 quarts for a simple drain-and-fill, whereas 4.7 quarts or more and 3.75 quarts are a common ATF quantity to fill reported.I did my transmission fluid change (ODO=46K) by myself (with replacing the transmission fluid filter by removing the bottom pan). I measured how much I collected and filled it up with the same amount (~4.5 QT, if you do not remove the pan you should only need ~3.5QT).
I checked the factory-filled ATF on my 2.5T (2021 GT Turbo). Not easy but doable. Had 5 extensions and a 10mm socket, took the securing bolt off the dipstick, and was able to slither my arms down and pull the dipstick out. Not THAT difficult in the grand scheme of things.
The level was PERFECT, slightly overfilled by 1mm on the dipstick, just the way I like it. I prefer slightly overfilled than slightly underfilled.
Not all transmissions are underfilled from factory it seems. Glad I checked and have peace of mind.
You guys were right, I checked the ATF while idling and it was low. The ATF was at around 25-30 C (77-86 F). I added 600ml and it came up to the middle of the 2 lines, so perfect. I don't think ATF expansion is that great that I need to check at 122F, and I'm guessing if I were to check at 122F it would be closer to the top line.
I also changed the rear diff and front transfer case, and they both took about 0.5L each. Not too complicated.
Update: I warmed up the transmission fluid to 51C / 123F and re-checked level (car idling, level surface) and it was just below the Full line. MS Paint artwork attached.
Summary: added 600ml to factory fluid to bring it up to full level. I did not drain and fill since car has 30K km / 18K miles.
View attachment 320245
Thanks for your great comments. I will check it the way you suggested.Here’s the problem right there IMO. Those who bothered to check the factory ATF level before any ATF changes have found the factory fill is low! Added the info that you said ~4,5 quarts needed for dropping pan, and ~3.5 quarts for a simple drain-and-fill, whereas 4.7 quarts or more and 3.75 quarts are a common ATF quantity to fill reported.
Here’s an example reported by @FerrariF1:
So you really want to follow the official procedure with a proper OBDII reader for ATF temperature checking the ATF level. You situation could be that the additional 2 fl oz added just make it over the threshold and eliminated the transmission hesitation / jerk / lurch which is a common symptom of low ATF level.