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-   -   CVT Preventive Maintenance (https://www.nissanversaforums.com/engine-forum/42878-cvt-preventive-maintenance.html)

paul.siu 04-07-2019 04:36 PM

CVT Preventive Maintenance
 
I am trying to under stand how to do preventive maintenance on a Nissan CVT. What I am trying to understand is

1. What is the most common cause of Nissan CVT failure? Is it too much load (like towing a heavy trailer)? Is it due to driving habit like constantly accelerating causing wear? Is it a lack of fluid change? Is it driving through dirty conditions? Is it due to some unfortunate manufacturering defect that cannot be prevented?

2. In the manual, the maintenance just state check the CVT fluid. I have no idea what that means. The manual states that "the CVT fluid deterioration data is more than 210000". This seems to indicate some sort of equipment that Nissan has to examine the quality of the fluid. I do not know if this info can be read through the OBD2 port, or if some specialized equipment is needed. When I checked with the dealer, they were not exactly helpful and didn't know about the reader.

There is no issue with the car now, but by the time something goes wrong, it would be too late, so I am trying to plan ahead. On a Subaru, one common cause of CVT failure is to follow the manual recommendation that the CVT will last for the lifetime of the car, so changing it often will prevent that. What about Nissans? If they have some sort of deterioration meter, should we just have Nissan check it and change it when it's near 210000 (whatever that number means...).

Paul

SlickVersa 04-07-2019 05:05 PM

Did you try to contact Nissan customer service and ask this question? It does not necessary mean they will be useful, but just to cover all bases...

paul.siu 04-07-2019 05:30 PM

In the post, I did indicate I contacted the dealer, but they said they don't know anything about the reader. They recommended changing the fluid every 30K, which wouldn't hurt but is costly and is probably a benefit to them.

Is there a main Nissan number?

paul

TechGuy8 04-07-2019 07:41 PM

Nissan tech uses Consult-II to read the CVT Fluid Deterioration counter. If it is higher than 210,000, change the CVT fluid.

There is an Android App to use with ELM327 to get CVT info similar to the Nissan Consult-II scanner.
CVTz50 - CVT diagnostics with ELM327

This is the thread which I started about this app. I have the correct ELM327 module. But I have not purchased the app yet.
https://www.nissanversaforums.com/ge...cs-elm327.html

Alan_nc 04-07-2019 07:53 PM

Couple of things come to mind:

if you have another dealer available I'd try them.....they should all know about the fluid reader

Somewhere in the manual (not sure which year) it says to change the fluid at 60,000 miles.

I am always amazed at how little the folks at the dealerships seem to know about the cars.

SlickVersa 04-08-2019 12:30 AM

Quote:

Originally Posted by paul.siu (Post 287988)
In the post, I did indicate I contacted the dealer, but they said they don't know anything about the reader. They recommended changing the fluid every 30K, which wouldn't hurt but is costly and is probably a benefit to them.

Is there a main Nissan number?

paul

I saw that you already contacted the dealership. I meant to contact the Nissan corporation customer support. The web site is https://www.nissanusa.com/contact-us.html

From that web site you can send them a message, and they also list a few numbers to call:

NISSAN CONSUMER AFFAIRS
P.O. Box 685003
Franklin, TN 37068-5003

Phone: (800) NISSAN-1 (or 800-647-7261)

NISSAN OWNER SERVICES
NissanConnect Customer Support

Phone: 1-855-426-6628

When you get in touch with Nissan, let them know at once that you already contacted your dealership and are still not satisfied. Be persistent dealing with them. If you find a dead end at Nissan corporation, try to contact your Nissan zone representative (or whatever they call this position). This person could be very helpful.

Also, as other user suggested, try to contact another Nissan dealership. They could be different as day and night.

paul.siu 04-08-2019 02:03 AM

Thanks, I will contact the main corporate office. Actually, this dealer was where the car was purchased, but we ended up using a different dealer nearby because we had issues. Unfortunately, that dealer closed so we are back to the original dealer. Most repairs are not done by the dealer.

Thanks for the tip on the app, I actually have a Fixd that I wasn't using any more since they updated their app to require a $60/year subscription. The item turns out to have a ELM327 v1.5 interface that the cvtz50 app wants, but I haven't had a chance to test it.

Paul

amc49 04-08-2019 04:12 AM

Don't expect much from the dealer unless you are paying for it. They will play stupid until you cave in to let them do the work.

If truly concerned change the fluid at 30K, the normal number is 60 but that may be too late on ones driven hard enough.

Quite simply, the transmissions are designed to barely make full life at best and some won't, Nissan does not care. Different heat treating on the ball bearings and some modding like on chains and other parts and the transmissions could go much longer on average, but that takes money away from the CEO (now in jail for financial irregularities). They went to CVT to begin with as they cost maybe half what standard ATX designs do.

Use the app in post #4 ............it can measure the deterioration number and also reset it when needed at fluid changes, all it is is a number showing how overheated the fluid has gotten.

paul.siu 04-08-2019 08:00 AM

So essentially, the problem is that CVT heats up, causing deterioration and changing the deterioration number, when it reach the number 210000, it should be replaced. Changing it basically keeps the fluid fresh and less likely to damage cvt?


I looked at a site nissanproblems.com which list quite a number of transmission issue on the 2014 Versa? Anyone on this site experience issues?

Paul

pimperell 04-08-2019 11:42 AM

Quote:

Originally Posted by paul.siu (Post 287982)
I am trying to under stand how to do preventive maintenance on a Nissan CVT. What I am trying to understand is

1. What is the most common cause of Nissan CVT failure? Is it too much load (like towing a heavy trailer)? Is it due to driving habit like constantly accelerating causing wear? Is it a lack of fluid change? Is it driving through dirty conditions? Is it due to some unfortunate manufacturering defect that cannot be prevented?

2. In the manual, the maintenance just state check the CVT fluid. I have no idea what that means. The manual states that "the CVT fluid deterioration data is more than 210000". This seems to indicate some sort of equipment that Nissan has to examine the quality of the fluid. I do not know if this info can be read through the OBD2 port, or if some specialized equipment is needed. When I checked with the dealer, they were not exactly helpful and didn't know about the reader.

There is no issue with the car now, but by the time something goes wrong, it would be too late, so I am trying to plan ahead. On a Subaru, one common cause of CVT failure is to follow the manual recommendation that the CVT will last for the lifetime of the car, so changing it often will prevent that. What about Nissans? If they have some sort of deterioration meter, should we just have Nissan check it and change it when it's near 210000 (whatever that number means...).

Paul

The only mention of changing out the CVT fluid is listed under under the "Premium Maintenance" schedule, and it recommends that it be changed at 60,000 miles.


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