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The automotive industry is concerned about the understanding from the car quality complaint platform that in nearly a month, a number of car owners complained about the problem of "BYD dolphin air conditioning outlet spewing white granular substance", and a number of dolphin owners reflected that dolphin air conditioning outlet continues to spew white powder, there is an obvious smell as soon as the air conditioner is turned on; the problem of spraying white dust from the air conditioning system, causing breathing difficulties, coughing and other problems. In response to this incident, BYD officials have previously responded: "some air-conditioning pipes caused by oxidation, through air-conditioning system cleaning can be eliminated, car owners with problems can go to the store for free solution." However, at that time, BYD did not publicly respond to the specific composition of the white powder emitted from the vehicle air conditioner.

On November 17, Zhejiang Consumer Protection Commission released an article entitled "BYD dolphin model air conditioning failure caused consumer disputes, Wenzhou Consumer Protection Commission released consumer complaint information publicity", the content shows that on November 9, representatives of some owners of BYD dolphin cars complained about the phenomenon of white particles floating out of the air conditioning outlet of BYD dolphin models, requiring BYD manufacturers to provide follow-up solutions to consumer disputes caused by the failure. 400 car owners in Wenzhou have spontaneously organized groups to safeguard their rights.

The Consumer Protection Commission of Zhejiang Province and Wenzhou City immediately intervened in the investigation after receiving the complaint, ordering BYD manufacturers to face up to the consumer complaint, apologizing to consumers, and requiring manufacturers to disclose the follow-up solution to the consumer complaint on the spot. Then the BYD manufacturer made an apology and a statement of commitment. The details are as follows: BYD manufacturers deeply apologize for the failure of the air conditioning evaporator components of the dolphin model affecting the normal use of consumers and promise that all consumers who have doubts can enter the store for inspection free of charge. First, if there is a failure of the evaporator parts after inspection, the evaporator assembly can be replaced free of charge; second, if there is no evaporator component failure after inspection, as long as the car owner has the desire to replace the evaporator assembly, he can also enter the store to replace the evaporator assembly free of charge; third, for the owner who is confirmed by the inspection to replace the evaporator failure, the regular maintenance shall be given to the maintenance party authorized by BYD for 2 times, and the warranty period of the replaced evaporator shall be recalculated from the date of replacement. Fourth, the manufacturer promises that the treatment scheme is applicable to BYD dolphin owners all over the country. In addition, the Wenzhou Consumer Protection Commission also asked BYD manufacturers about the detection of white particles. BYD has commissioned two different authoritative testing agencies, one of which has reported that aluminum hydroxide accounts for 95 per cent of the ingredients; the other is still under testing.

On the afternoon of November 18, BYD made its latest response on its official Weibo account to the incident of "BYD dolphin air conditioning vents spewing white granular matter". BYD said: "recently, we have received complaints from individual users about white powder blowing out from the air conditioners of dolphin vehicles. In this regard, we attach great importance to it, and carry out full investigation and research, entrusting two third-party authorities to carry out testing. The relevant situation is explained as follows: this phenomenon is caused by abnormal air conditioning evaporators in dolphin models. After testing, the main component of the powder is aluminum hydroxide (commonly used in stomach medicine), which is harmless to the body. " In the latest response, BYD pointed out: "the concentration of PM2.5 in the air in the car is less than 50 μ g / m3 (air quality assessment PM2.5:0-50 μ g / m3 is excellent), which is much lower than the international inhalation concentration limit of 4000 μ g / m3 for chemical safety. The powder is mainly composed of large particles and usually settles naturally at the bottom of the car. If inadvertently inhaled, it will also be absorbed and filtered by the nasal cavity and will not cause harm to the human body. We apologize for the troubles and worries that this phenomenon brings to users! Please rest assured to use. If you have any doubts, you can enter the store for free testing. If there is such a phenomenon, the evaporator can be replaced free of charge and the air conditioning pipes can be cleaned to solve the problem thoroughly. "

Dolphin is the first model in the marine life series, based on BYD e platform 3.0. it was launched in August 2021, with a total of four models, positioning small cars, with a comprehensive subsidy price of 10.28-130800 yuan. In terms of power, it provides three mileage options of 301km, 401km and 405km according to different models. Among them, the ordinary version is equipped with permanent magnet synchronous motor (PMSM) with maximum power 70kW and the peak torque is 180N ·m; the high-power version is equipped with PMSM with maximum power 130kW and peak torque of 290N ·m.

According to the retail sales data of the Federation of passengers, BYD delivered 205800 new cars in October 2022, an increase of 159.4% over the same period last year. BYD is the only new energy vehicle company on the list with a retail volume of more than 200000 vehicles, with a market share of 37.1%. From January to October 2022, BYD delivered a total of 1.3586 million new cars, an increase of 238.7% over the same period last year, ranking first among new energy manufacturers. Among the specific models, dolphins ranked fifth in sales of new energy vehicles with 25240 deliveries in October, accounting for 12.26% of BYD's total delivery, making it another popular model for BYD.

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