What causes transmission failure in Infiniti QX50?

2 Answers
OBraxton
07/25/25 2:59am
The causes of transmission failure in Infiniti QX50 are as follows: 1. Transmission overheating. 2. Prolonged use without replacement, leading to fluid deterioration. 3. Water ingress into the transmission. 4. Significant deviation in oil level height. 5. Slipping of friction plates. Relevant information is as follows: 1. The transmission is a mechanism used to alter the speed and torque from the engine, capable of fixing or changing the gear ratio between the output and input shafts. Some vehicles also include a power take-off mechanism. 2. The 2020 Infiniti QX50 2.0T AWD Intelligent Edition is a mid-size 5-door, 5-seat SUV with dimensions of 4705mm in length, 1903mm in width, and 1678mm in height, a wheelbase of 2798mm, equipped with a CVT continuously variable transmission, and a fuel tank capacity of 60L.
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SanJustin
08/10/25 4:47pm
As an owner of the Infiniti QX50, I've driven it for several years and encountered transmission issues quite often, typically manifesting as jerking, slipping, or rough shifting. I believe it might be related to the transmission fluid—insufficient or degraded fluid can lead to lubrication problems, triggering these issues, or perhaps the control module software needs an update. Another common cause is wear and tear on mechanical components, such as gears or chains, which can get damaged over time. I've found that if there are slight abnormalities while driving, it's best to get it checked at the dealership immediately rather than waiting for a complete breakdown, which can be costly. Regular maintenance is crucial, including changing the fluid every 2-3 years and avoiding extreme driving habits. In short, safety comes first—if anything feels off, have a professional technician diagnose it right away to prevent being stranded with bigger troubles.
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