Electric vehicles have long been considered more reliable than fuel vehicles, and the reason is simple, that is, the structure of the power components is relatively simple. Unlike engines, motors are subjected to high temperatures and pressures during combustion, and require low lubrication and cooling. In addition, the motor technology has long been quite mature, and does not require frequent maintenance, which naturally gives people a more durable impression. However, according to the latest UK survey, this is not the case.
Uk-based consumer machine group "Which?" A survey report was released a few days ago, revealing that the number of failures returned by traditional fuel vehicle owners in the first 4 years of new cars is actually lower than that of electric vehicles. The survey sampled about 48,000 people, with a total of nearly 57,000 vehicles that had been in possession or driven for a long time, of which 2,184 were electric vehicles. 31.4% of EV owners within 4 years of age had at least one failure in the 1 year prior to the survey and 8.1% had been unable to drive or start. The average repair time required for a faulty vehicle is about 5 days. Interestingly, the most commonly failed project is not a motor or lithium battery, but a software problem.
In terms of fuel vehicles, the failure rates of gasoline and diesel in the first year of the survey were 18.6% and 29.1%, respectively, in addition, plug-in gasoline-electric hybrid and oil-electric hybrid systems were also within the scope of the survey, and the failure rates were 27.5% and 17.3% respectively. In other words, the most reliable is the gasoline-electric hybrid system, followed by the gasoline engine. The average required repair time is the shortest of all vehicles, about 3 days, and diesel vehicles are the runner-up, with an average of 3.8 days.
However, not all product reliability of electric vehicles is worrying, and there are still a few models with excellent reliability performance. In "Which?" In this survey, the 2019 Kia e-rNiro has a failure return rate of only 6.2%, and the proportion of unable to drive or start is only 1%, which not only deserves the throne of the reliability of electric vehicles, but even leads other power types in this range, becoming the most reliable small SUV. Among electric vehicles, Tesla has the largest number, but its reliability performance is the last, with a failure return rate of 39% and a 5% inability to drive or start