I read some other posts on this subject, but I’m concerned when I go to buy a new CX-5. It looks like the trim(s) of the CX-5 may require having this feature. So here goes- how reliable is this function. What other problems does it present. Does anyone here have a CX-5 w/ this feature have higher milage and have had any problems. Do this come on anytime your at idle or low speed operation. I Don’t Want It !!!, but to get the trim level we want automatically has this feature. Any posts/ info would be appreciated.
Cylinder deactivation reliability, issues, how when it works
- Thread starter Kawzak
- Start date
Did you see my reply in your other thread? To me, getting a good condition 2024 in the trim level you want is your only option. Or you'll have to accept going to at least the Select level which is what I did for my 2025.
I don't remember the exact parameters of when CD kicks in, but you can see it in action via a display in the infotainment system when CD engages and disengages. Aside from the anecdotal examples of cylinder head issues with CD equipped engines early on and transmission issues, I personally don't like it. Aside from the discussion of temperature differences between active and inactive cylinders, there's the possible issues of blow by, higher cylinder wall/piston ring wear, and piston skirt wear that has shown in other engines torn down with CD from other manufacturers.
I haven't seen many CD type implementations ever not have problems. Honda has had problems. GM has had problems. The issue with Honda and VFM has resulted in some aftermarket solutions that disable CD. With GM and their AFM, there is an aftermarket solution that requires replacement of the lifters and I think cam and possibly some sort of reprogram of the ECU.
I don't remember the exact parameters of when CD kicks in, but you can see it in action via a display in the infotainment system when CD engages and disengages. Aside from the anecdotal examples of cylinder head issues with CD equipped engines early on and transmission issues, I personally don't like it. Aside from the discussion of temperature differences between active and inactive cylinders, there's the possible issues of blow by, higher cylinder wall/piston ring wear, and piston skirt wear that has shown in other engines torn down with CD from other manufacturers.
I haven't seen many CD type implementations ever not have problems. Honda has had problems. GM has had problems. The issue with Honda and VFM has resulted in some aftermarket solutions that disable CD. With GM and their AFM, there is an aftermarket solution that requires replacement of the lifters and I think cam and possibly some sort of reprogram of the ECU.
its a big topic,it is used for fuel efficiency...in time it may be able to be deleted by tune but currently it would require some steps that could hurt if warranty issue's arise-i own one...it's FINE...But i would rather not have it....look into the differences in engine and transmission from non to c/d-why would it make sense to make both from a money standpoint
can't really speak to reliabilty of it yet,others here seem to have had cx-5(c/d) for longer and should have some feedback-glad i got the car if that helps you-didnt want a cvt and liked the non turbo 4 cylinder as opposed to the 3 cylinder turbo options i looked into to
Only method I've seen will give you a CEL mode but doesn't appear to cause vehicle to go into limp mode. One would reportedly have to disconnect one of the cylinder deactivation solenoids.
N7turbo
2023 CX-5 2.5T ... 2024 MX-5 RF GT
Do we know if this actually stops the transmission pendulum? Not that this would stop the clutches from disintegrating, but I'm curious.
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