Recently, many places have been forced to press the pause button, and the so-called "big news" is really very few. A recall news from BYD broke the silence of many days.
The reason for the recall is that the power battery pack tray of some vehicles is uneven due to manufacturing reasons, and there is a risk of water ingress. This may cause the electrical circuit failure of the power battery system, and in extreme cases, there is a risk of thermal runaway of the power battery, and there is a safety hazard. A total of 9663 vehicles were recalled, and the solution was to check whether there were any problems, and if there were any, the battery packs were replaced free of charge to eliminate the hidden dangers.
Recall, heat runaway, free replacement, eliminate hidden dangers, a recall message from BYD, words stabbed the heart of the owner of the WM EX5, the mobile fireball at home, when can it usher in an official response, when can it wait for the recall.
Mouth full of users, accident stealth?
From the user's point of view, there have been nearly 10 spontaneous combustion incidents in WM EX5, which is only publicly reported. Parking, charging, driving state, WM EX5 has experienced spontaneous combustion problems, the owner does not know how to be good, the problem is not to know what the core problem of the real fire is, how to avoid not knowing, every day have to hang their hearts.
Before reporting WM EX5 related problems, there was a message in the background, "Changing the car points to the neighbor's WM EX5!" What if my car is next to WM? Online etc. Urgent. ”
In fact, for the owner of the Wei carriage, at the beginning of the choice, it is not only the official propaganda of the manufacturer, what endurance, what intelligence. Compared with a number of Internet giants going to the sea, Weima CEO Shen Hui is definitely an innovator among the elderly in the car circle.
In the early days of the establishment of WM Motors, the self-built factory firmly grasped the supply chain, production and quality talents in its own hands, which was a passage that Shen Hui often mentioned, and it was also the focus of WM's initial publicity.
Shen Hui believes that oem is like surrogacy, and finding someone to surrogate and get the baby will have problems of one kind or another. The mass-produced Weima EX5 is like Shen Hui's own child, he will never allow his child to have any safety hazards.
Shen Hui once said: "A product is marked with our company's LOGO and handed over to users, and this thing is not made by myself, I have no confidence in it, and the consequences will be very serious." ”
The core of the above remarks is that we are not only a new force, but also our own factory, and the cars we produce are of higher quality and higher protection for users.
Perhaps, many users are interested in Shen Hui's past resume, as well as the commitment to users, before they dare to be the first person to eat crabs. Nowadays, it seems that all the cars marked with the LOGO of WM are prone to danger.
For WM, the EX5 was once the core volume model, but now it has become the target of public criticism.
In January 2018, WM Motor's automobile production qualification was obtained through backdoor Zhongshun Automobile Holdings Co., Ltd., and the legal representative has been changed from Li Jinzhong to SHEN HUI (Shen Hui). Zhongshun Automobile Holding Company actually only has a 6-character production qualification, and can only produce buses, multi-purpose commercial vehicles (MPVs), and sports recreational off-road vehicles (SUVs).
To put it simply, the reason why the first model of WM Motor is an SUV is that it can only be an SUV if it gets the production qualification. The price range is locked in the range of 100,000-200,000 yuan, which is also based on the most popular volume at this level at that time. What is for the user is the propaganda of the late packaging, the amount of money, take the financing is the right thing.
Nowadays, WM EX5 is only 4 years on the market, because of endurance, safety, air leakage, spontaneous combustion and other issues, has long been not the core model of WM, from the perspective of sales, it is also a thin west mountain, WM official may think, "This car is not saved, forget it, why spend money again." ”
Then and now
WM EX5 may be destined to be a model to "fire", from the release of the new car, WM EX5 has been associated with fire, due to spontaneous combustion caused by supplier spray, indeed not seen in the traditional car brand. Wei Ma also gave us a knife to pull our butts and opened our eyes.
In other words, in 2020, other models of WM have not yet been supported, WM EX5 is still a piece of fragrant food, there is a problem WM is really ah, this brand can really be in that year.
Putting aside the surface recall, WM EX5 seems to have always been at risk of spontaneous combustion. According to the big vernacular to tell you, what was the reason before, the reason for the whole recall, the core is that the problem is the battery supplier's business, and WM has nothing to do, the recall is to replace the battery.
The reason for the recall is that in the process of production of the battery supplier, impurities have entered the inside of the battery cell.
As we all know, when the negative electrode current is too large or the temperature is too low, it is possible to have a lithium conversion reaction that only lithium metal batteries have, resulting in metal lithium, which is the so-called lithium evolution. That is, these lithium dendrites like branches, after accumulating to a certain extent, there is a risk of puncturing the battery separator, resulting in thermal runaway, that is, spontaneous combustion. Impurities enter the production process, which will further catalyze and accelerate the process.
It should be noted that in this recall statement, there is no mention of any problems with WM's BMS management system, that is, WM believes that its BMS management system can manage vehicle charging and discharging very well.
So now, why does the WM EX5 spontaneously combust and not recall? Let's make a few possible small guesses.
- The battery that has a problem is not a small supplier, and WM is not easy to pinch;
- In addition to the battery itself, WM's battery management system also has problems, and the reason for responsibility has not been clearly defined;
- The WM EX5 is no longer the core model, it has been abandoned inside WM, and the official does not want to spend money on recall.
In addition to the above reasons, it seems that WM has no reason not to explain and not to recall, after all, in the domestic market, it still attaches great importance to the reputation of old car owners, especially the new power brand, there is no word of mouth, who dares to try it?
What is the essence of choosing a car? It is not how smart, how convenient, how trendy, but can safely get from point A to point B, and in the life cycle, there is no quality hard injury. Sales volume and residual value are also based on this.