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Mazda CX-7 Transmission Questions

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Comments

  • callmerayzcallmerayz Posts: 11
    Just bought my CX7 $23,500 2wd-sport. I also own a Murano, and I can notice many simularitys.
    The big thing thus far that I am disapointed.
    1) Driving on the interstate 70mph through rolling hills the transmission jerks while trying to decide if it should change.
    2) I thought with all the turbo advances that turbo lag would not be noticeable, but it is. I'm told it will improve? I have 400 miles so far.
  • ateixeiraateixeira Posts: 72,587
    The engine is still green, and I'm sure the transmission's adaptive logic hasn't yet "learned" your driving style.

    -juice
  • vbbuiltvbbuilt Posts: 498
    Juice, can you tell me more about "adaptive logic"? I didn't know the CX7 had it. How does it work and what does it do?

    Vince.
  • callmerayzcallmerayz Posts: 11
    I was hoping that was the case. Great SUV just a little slow. LOL.
    TUNING anyone. I want to buy a chip, and xenon lights.
  • ateixeiraateixeira Posts: 72,587
    Most modern trannies have that, I don't have information that is particular to the CX7, maybe someone else here does?

    -juice
  • ecubecub Posts: 2
    I called Mazda USA, they admited the problem and said that the folks in Japan were working on a fix. They asked me to take it and leave it at the nearest dealer and gave a loaner. It made me very worried that they wanted it off the road quickly and I got the feeling from them that it may be quite some time before a fix was ready. Then they started to talk about a finical settlement. WOW! :lemon:
  • vbbuiltvbbuilt Posts: 498
    Good idea about establishing separate sub-fora, but I think you need to change the title of this forum: Mazda CX-7 Transmission Problems.

    People who are exploring the CX-7 and trying to gain useful information will immediately get the wrong idea that the CX-7 has major problems with the transmission, which is not the case.

    Perhaps retitle that forum to "Mazda CX-7 Transmission - General Discussions"?
  • vbbuiltvbbuilt Posts: 498
    Well, since Edmunds reorganized these fora, guess I'll post my question again.

    Someone mentioned that the CX-7 has Adaptive Logic. I don't know what that is. Can someone explain how it works and it's advantages?

    Thanks, Vince.
  • wjbushsrwjbushsr Posts: 135
    Adaptive Logic transmissions are those that learn your driving habits, e.g. speeding up, sudden stops, long distance speeds and moderate speed. It has a sort of fuzzy logic capability to better tune the onboard computer on how to save gas and how to set the emmissions management.
    Driver-Type Recognition
    Environmental Recognition
    Driving-Situation Recognition


    All can be explained on this link: Adaptive Transmission Control
    It's extensive in the definition, but it answers tons of questions!
    Still not certain if the CX-7 has adaptive or not...
  • honakerhonaker Posts: 74
    Based on the Mazda web pages...

    6-SPEED SPORT AUTOMATIC TRANSMISSION

    Experience the best of both worlds -- the convenience of automatic and the authority of manual. In automatic mode, sensors and internal algorithms adapt shifting logic based on your driving style. The Sport AT shift gate allows quick manual shifting when you want to take a more active role in the CX-7's performance. In either mode, six forward ratios keep the engine in the sweet-spot on acceleration and deliver smooth and relaxed straight away cruising.
  • vbbuiltvbbuilt Posts: 498
    Sweet! Very nice feature...like frosting on a cake! Just one more reason I'm glad to pick the CX7!

    Thanks for the explanations!

    Vince.
  • callmerayzcallmerayz Posts: 11
    My transmission cx-7 with 1000 miles now continues to jerk while on the interstate when traveling up hill. As soon as I go to manual then to 5th it stops. However it does seem like the power just isn't there to carry the suv over the hill? I am usually tring to milk every drop of fuel out of any car so I'm barely depressing the pedel. If I push further down even though I'm going at the speed I want to travel it will respond by it's self and drop down into 5th. To me I think the turbo is sleeping until I push down and the power it would provide to carry me the rest of the way over the hill is not available. Then it causes a surge in power, and a waste of fuel. I plan on going to the dealer asap. I hope a little fine tuning will help. Other than this problem the mazda is great.
  • honakerhonaker Posts: 74
    Is it above 2500 rpms when you're easing your way up the hill?
  • wjbushsrwjbushsr Posts: 135
    At 1000 miles, its still in the "learning stage"; set it on cruise the next time you're out and allow the auto transmission to adapt itself to your driving habits. Dropping a gear going uphill is what it does, this helps the engine from overworking itself. I wouldn't hit the dealership just yet, try the cruise control for a couple of trips and notice the tachometer when you're driving.

    But if you're not sure, seek peace of mind and call before you drop off the car for a good two hours of your time! ;)
  • callmerayzcallmerayz Posts: 11
    the computer should have had plenty of time by now. I have driven with the cruise on. the rpms are around there. I'll pay more attention next trip.
    I can say for sure that at 70 mph in manual 5th it does not jerk. It's ready to fly.
  • fowler3fowler3 Posts: 1,919
    Some A/T transmissions have shift points different from your previous cars and you are probably still in the habit of how those A/Ts shifted expecting the changes at the wrong time, rpms, and speeds. So you may be unconciously letting up on the throttle right when the tranny is up-shifting or pressing the throttle when it is down-shifting. This can cause a decided jerking motion and noise.

    There are two elements at work here: you are getting use to the CX-7 and the CX-7 is getting use to your driving habits from older vehicles. :)

    Keep in mind that if somebody else drives your CX-7 for a couple days it is going to un-learn your way and learn the other person's habits.

    fowler3
  • roncoronco Posts: 6
    So, I test drove a CX-7 this weekend at a dealership after driving a FX35 and a Murano. I found the CX-7 to be fun overall, but obviously a more spartan and sporty design approach had been applied. The biggest thing I noticed was a seemingly weird power curve. Coming off stoplights, it seemed like there was about a full second in which it seemed like the car was barely moving at all, to the point of being almost uncomfortable, but THEN it would kick in and snap your head back. I found the driving at 20-80 mph to be total fun, but the start from stop experience made me pretty much write it off. Does that sound normal to anyone else?
  • vbbuiltvbbuilt Posts: 498
    That's typical of a turbo-charged engine. Once you get used to it and anticipate it, it'll become second nature to you. Even with the 1 sec delay it takes to kick in, I'm usually well of the pack coming out of a stoplight. There's more than ample acceleration for most any situation.

    Vince.
  • audia8qaudia8q Posts: 3,138
    As VB mentioned the turbo is a new experience for many and it requires a little different driving habits than a traditional engine. Once you get the hang of the throttle response it will seem like second nature.
  • ecubecub Posts: 2
    :lemon: I have the same problem, the transmission starts to jerk as if there is not enough power from the engine, if I slightly give it more gas, it becomes worse. I took it back to the dealer who claimed there was nothing wrong, I did not give up and finally found out from the dealers service manager that there is a problem and Mazda is working on a soulition, he said that the program from the transmission needed to be updated but the update was over a month away. I suggest that if you are considering a purchase to wait a few monts if not a year for them to work all of the bugs out. My dealer was very elusive about the problem as if they knew it and did not want to admit it fearing they would loose future sales.
  • carlitos92carlitos92 Posts: 458
    It took me many months to get used to my old 1.8 turbo Jetta, although I think it was a little easier being a manual transmission... Basically, I would have to floor it off the line and then get OFF the gas when the engine hits the juice at 3500, or else "bad things" would happen to the tires... :blush: I assume we'll all get used to our CX-7's over time. Hang in there, guys.
  • jessterjesster Posts: 5
    Just broke 1000 miles on my GT AWD and it has included a couple portland to seattle round trips so plenty of highway to play with the tranny. 6th is certainly built for speed and fuel economy but doesn't have much hill climb. Its quick to downshift to 5 on almost any incline if you are below 2500 rpm (below ~70). I have found that if you just get a little running start and get your revs above 2500 it will take many lesser hills in 6. I find that manually keeping it in 6 below 2500 just sucks the mph off because its out of power and if your not willing to gun it a little and instead hover around 2500 the turbo kicks on and off leading to a jerking ride. By the way its pretty happy doing 90 in 6 up almost any hill.
  • Hey, I have just over 5000 miles now. I am sure it is not because I am getting used to the turbo...LOL .
    I still love my Mazda except for the jerking at highway speeds that irratates the crap out of me, and my a/c shut down a couple of times. I still don't know why or what happened.
    It's good to know someone else is having the problem, (misery love company) and Mazda knows about it. I was on the road a lot recently and the only time I had a chance to visit a mazda dealer they had never heard of any problems nor were there any dealers/ factory messages yet.
    I hope they do in fact fix the problem if not I will get rid of it. Yes it's that bad. It would hurt either if Mazda somehow trys to make this right. I didn't want to buy a test vechicle. later
  • nmknmk Posts: 111
    Does anyone else seem to feel that in normal suburban and rural driving, the car remains in 5th gear too long?

    I manually shift to 6th above 38 mph because I think that lowering the rpms by 200 revs over the long run will save just a mite of gas. Not that I am frugal, but as long as I cannot drive above 55 mph in a severely policed area, why use the oomph that a lower gear will provide.

    Any remarks are welcome.

    Thanks,

    NMK
  • Having dealt with dealership service for quite a while, how do you approach them on fixing gearing or shift points if they claim they don't know about it. The impression i get from reading online is that the consumer knows much more than the guy at the service desk. Im not sure if that is good or bad. It may be bad because through the normal course of driving, the cars habits may just be the cars habits and we tend to freak out and have anxiety over the tranny? lol Or its good because we are much more informed. Is the tranny a real issue on the CX-7 that Mazda is working on or is that just a nice comfort the consumer statement to make us think Mazda is working on the car? I switched from driving an Accord V6 2 door and I will be honest and say the MAzda engine does not feel at this point as smooth and or as solid as the Honda engine in terms of shifting/jerks/ etc. But this is my 1st turbo, and i would def say the learning curve is up there in a CX-7 interms of using the gas pedal, dealing with turbo lag, and learning how to use the throttle in tune with engine response.
  • In the morning when it is cool out, when first starting the CX-7, the idle is at 2000 rpm and will not go down until the car is put into gear with a nice thump. Dealer says this is normal. I find this hard to believe that you put a car into gear at 2000 rpm. The morning initial start is the only time this happens. Is any one else having this happen?
  • It is normal for the car to rev higher on cold mornings; this the the EFI system's way of warming up the engine. (If you're old enough, think back to the days of manual or automatic carburetor chokes).

    My CX-7 only does it for a few minutes, during which time I'm usually trying to defog the windows, change CDs, get buckled in, etc. Shifting into gear at 2000 rpm is your choice, but nothing to worry about - that's what a torque converter is supposed to handle, and once a day during the winter certainly isn't going to kill it.

    -c92
  • This is not uncommon and or a problem whatsoever. Its your engine warming itself up. You shouldnt drop it into gear until the tach gets closer to 1k. This shouldnt be foreign to you, all cars do this if they are cold and have to warm up.

    I let my 7 idle for about a min or 2 till the tach levels as 1.
  • steverstever Ex Yooper, en route to New MexicoPosts: 40,504
    I always just put my cars in gear and creep out of the neighborhood figuring that it's better to warm all the systems up gradually by driving it gently instead of taking off with a warm engine and cold tranny, etc. Excessive idling is bad for the engine and exhaust system too (link).

    Moderator
    Need help navigating? stever@edmunds.com - or send a private message by clicking on my name.

  • This is my first turbo so I'm not familiar with idling the car before turning it off. Is this a real concern? Do I always need to be concerned about this or just after interstate driving or heavy acceleration?
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