Nissan Qashqai 2013 Sudden Loss of Power after 2 hours trip

Question

Hi ALL,

My Nissan Qashqai (2013 Petrol engine 2.0 CVT Automatic transmission) was working perfectly until about a year ago.

Whenever I am on the highway and we have spent about 2 hours on a trip, the car suddenly loses power and cannot accelerate to overtake any other vehicles, Pressing the throttle pedal to the floor the engine speed does not increase past about 2500 rpm. the vehicle speed cannot go above about 30-50 kmph.

I have checked and cleaned the MAF sensor and air cleaner but the problem remains the same.

Ambient temperature on the dashboard is between 30-38 degree Celsius when the problem occurs.

The vehicle cannot climb a hill or incline in a heavy traffic or does it very slowly, BUT the engine never dies out and even the air-conditioner works perfectly while the problem persists.

After stopping the engine at the shoulder of the road and resting for about 30 minutes, the car works fine as if nothing happened before. But after some time the problem repeats itself.

All the while the car dashboard does NOT show any malfunction indication. Not even a CHECK ENGINE Light. I have taken the car to the Nissan Dealership for servicing and checks 3 times but their system could not detect any fault. The car has made only about 25,000 kilometers from brand new.

Any help will be greatly appreciated.