Quote:
Originally Posted by deevel79
They did a basic cvt fluid flush and refill. All other maintenance up till this point was done by my local mechanic. Mine is a a 2012 and doesnt have the extended 10yr/120k mile warranty. Nissan claims they fixed all the kinks in the older cvt's. All one has to do is google "nissan cvt" and you will see page after page of all the problems owners are having with these transmissions. I cant even recall how many people are on their 2nd and 3rd trannys with less than 60k on the odometer. Apparently these cvt's are extremely sensitive to heat and can easily malfunction and/or fail suddenly.
|
The final bearing is extremely heat-sensitive.
The whining noise occurs after prolonged periods of driving when the fluid has lost some of its cooling capabilities and the transmission gets hot.
Changing/flushing the fluid prevents that from happening.
Most drivers are oblivious to this, because they don't know better, and most service shops neglect to inform them about the service.
From my experience, the CVT fluid breaks down approximately every 30k miles. Quite frankly, that's the average breakdown period for any transmission fluid, be it ATF, Manual Transmission Fluid, or CVT fluid.
I had a 2008 Altima, drove it until it had ~200k miles, original transmission. I first changed the fluid after I heard the whine from commuting to school (80 miles away) after about an hour of cruising at 80mph on the highway. From that point on, I decided to change the fluid every 30k. Every time, it was severely discolored and smelly.
Nissan just needs to change their recommended service interval, or maybe redirect the transmission lines into the radiator, like ATs do.