What Causes the Transmission Failure in Nissan Qashqai?
2 Answers
Reasons for transmission failure in Nissan Qashqai: 1. Poor Quality: The poor quality of the steel belt leads to wear and tear during vehicle operation. After running for several thousand kilometers or over a year or two, a large amount of iron filings are generated, resulting in transmission failure. 2. Unreasonable Design: The unreasonable design of the solenoid valve and the poor filtration effect of the filter cause most of the iron filings to be adsorbed, but a small amount of debris still gets stuck in the oil passages and solenoid valve. Due to the poor filtration of the filter, small debris can also pass through the filter, exacerbating the wear of the solenoid valve. 3. Unprofessional Assembly: Media investigations have revealed that the domestic production plants of Nissan CVT transmissions in China lack professional assembly standards. Not only are inexperienced workers hired for assembly, but the assembly process itself is not rigorous enough.
I usually enjoy studying transmission structures. Most CVT transmission failures in the Qashqai are related to overheating. During summer traffic jams, transmission temperatures soar, accelerating fluid degradation, which causes hydraulic valve body sticking and results in jerking. Belt wear is also a common issue—slippage during sudden acceleration can produce abnormal noises. I've seen many Qashqai owners neglect fluid changes, leading to metal debris clogging the filter and causing insufficient oil pressure. Early models had flawed solenoid valve designs, making low-speed shifts feel like being kicked. Remember to change transmission fluid every 60,000 km, avoid flooring the gas pedal frequently in city driving—these measures can delay problems. Transmission control unit failure can also trigger trouble codes, so it's advisable to scan for codes promptly if jerking occurs.
