In just the past 2 days, the automotive industry has once again announced a recall plan. Volkswagen and BMW Brilliance announced recalls at the same time, recalling nearly 40,000 vehicles. Since entering December, the automotive industry has issued five recalls.
On December 24, Volkswagen China, FAW-Volkswagen, and BMW Brilliance simultaneously announced a recall plan, announcing the recall of imported Beetle, Golf, imported Audi A1, Audi A6, BMW iX3 electric vehicles and other models, with a total recall of 39,082 vehicles.
According to statistics, the recall plan has only been 2 days since the last automotive industry recall, and it is also the fifth recall this month, which has reached the highest level of recalls this year, the same as the number of recalls in April and August, and the total number of recalls this month has reached 1.084 million.
In terms of models, the Volkswagen series is the main recalled brand, and the models involved are mainly imported models, not only the Volkswagen series but also the Audi series. Among them, there are imported Volkswagen Beetle, Scirocour, Golf, Sharon, Tuwei and Weilan series, and the other models are mainly Audi brands, which are imported Audi A1, A6 Avant and A7 models.
The Volkswagen series recalls are all related to engine defects, and the bolted hardware with hardware also has software defects. The first is that the 1.2TSI and 1.4TSI engine oil rail bolts may have insufficient tightening torque, resulting in bolt loosening during the use of the vehicle. Risk of ignition due to fuel leakage. The second is that due to the software cooperation between the engine and the transmission control unit, the "engine stall protection mechanism" will be triggered during the shift, and the hidden danger of sudden acceleration of the vehicle will occur.
BMW Brilliance model is relatively single, the domestic iX3 electric vehicle is BMW Brilliance's first pure electric vehicle model, officially listed at the Guangzhou Auto Show last year, positioned in a total of 2 models of pure electric medium-sized SUVs. Priced at 469,900 yuan to 509,900 yuan, the exterior continues the exterior and interior design concept of the fuel version of X3, and the details are upgraded with pure electric vehicle elements, equipped with BMW's latest automatic driving assistance system Pro, and equipped with the fifth-generation electric drive system (eDrive), NEDC has a cruising range of 500km.
As for the reason for the recall, the soldering quality at the pins of the internal contact system plug-in interface of the power battery is poor, which may lead to deviations in the actual and measured values of the temperature/voltage. When the deviation value exceeds the set safety value, the vehicle will start the battery system fail-safe mode, the fault code or alarm prompt information will appear, and cut off the power battery output, causing the power interruption during the vehicle's driving, and there is a safety hazard.
According to the data, the domestic BMW iX3 is equipped with a 74KWh power battery pack in the Ningde era, and the energy density of the battery pack system is 154 watt-hours/kg. The official Cruising range under NEDC conditions reaches 500 km, and in the NEDC standard test, the energy consumption of 100 km is 16.7 kWh.
Judging from the official WeChat public platform article "Digital Creed of BMW iX3 Super Battery" of the Ningde era, the battery loaded by the BMW iX3 model is the NCM811 battery produced by the Ningde era. Due to the significant increase in nickel content, the 811 battery can greatly improve the energy density of the battery and bring longer mileage to the electric vehicle, so it has become the first choice of car companies.
However, in power batteries, the greater the specific gravity of highly active nickel, the worse the thermal stability of the cathode material. When the battery encounters high temperature, external force and other impacts, it is more likely to cause thermal runaway. Therefore, at that time, there were also many doubts about the 811 battery. The domestic BMW iX3 uses NCM811 battery, which is undoubtedly the most powerful endorsement for the Ningde era battery.
With 2021 to go until a week away, will there be a whistle recall in the automotive industry?