2014 Nissan Qashqai Pricing and Specs

Some markets have indeed experienced problems with the Nissan CVT transmission as fitted to many of the brand’s vehicles. It doesn’t seem as widespread in Australia, but some faults have been identified.

That main problems seem to be overheated CVTs which can cause juddering when driving and premature wear inside the transmission. According to some in the trade, the fault is caused by a problem with the way the transmission fluid is cooled, and when it gets too hot it can cause warping of the metal parts inside the unit.

Ultimately, the solution would be to fit an external oil cooler for the transmission fluid, but otherwise, a close eye on the level of transmission fluid and correct servicing is the key to making the CVT last.

You should have an auto electrician check the operation, it could simply be a connection in the wiring loom affecting both the windows and the seat.

It’s a pretty standard offer, and while I agree that the heater core should last longer your car is five years old, it’s out of the factory warranty period. I would take the offer and move on.