On January 14, the automotive industry released the recall information of the first batch of defective models in 2022, Mercedes-Benz China, Dongfeng Fengshen and others released 2561 recall information for 5 models, including the luxury model Mercedes-Benz GLE and the independent brand Fengshen AX7, there are improper hardware processes and insufficient software design.
Dongfeng Fengshen AX7 Mach version is Dongfeng Fengshen's key SUV model, listed on September 26, 2021, self-proclaimed "highway rocket", it can be seen that the new owner is playing performance and control, the price range is 9.59-12.99 million yuan, as a modified model In addition to the configuration and design online, the power performance improvement is the biggest change.
The reason for the recall is precisely on the power operating system, and there is a problem with the logic of the electronic shifter software strategy design. Under general logic, when the speed of 0 may be in a parking or braking state, when the driver unfastens the seat belt and opens the main driving door, the TCU (automatic transmission control unit) and the electronic shifter will jump back to the P gear and enter the parking state.
However, there is a problem with the Dongfeng Fengshen AX7 version of the electronic shifter software strategy, the electronic shifter does not follow the TCU to automatically jump back to the P gear, once the owner gets off the car at this time, it is not hung up into the P gear in time, causing the vehicle to continue to drive automatically according to the original gear, there is a safety hazard.
In 2014, Dongfeng Motor Company officially launched the development of the "Mach Power" engine platform, investing more than 720 engineers in the development work. In 2020, the "Mach Power" 1.5T engine won many awards such as "China's Top Ten Engines", "Energy Efficiency Star" of China Automobile Research Institute, and "Annual Special Award of the Jury" at the Automotive Festival. Matched is getrag 7-speed wet dual-clutch transmission, many of the hot-selling SUVs are used in this gearbox.
I remember a news report that a natural owner did not hang up in the P gear when he got out of the car, and the car "ran" by itself. Of course, this situation is not a situation that all car owners will face, but once it appears, there is a greater safety hazard, after all, without the driver's control, the vehicle continues to drive, and the consequences are unimaginable. Upgrading the electronic shifter software eliminates safety hazards.
In addition to completing software defects, it is important to develop good driving habits, and after stopping the flameout, you must confirm that you are hung up in the P gear to avoid irreparable losses. Of course, many models are now electronic parking systems, which automatically enter the parking state after parking.
Mercedes-Benz China, Honda Motorcycle and Changan Mazda CX-8 are all because of the process problems of the parts in the car, of which Mercedes-Benz China recalled a total of 639 imported GLE vehicles, and the reason for the recall is because the fixed clip of the GLE fuel tank pressure sensor within the scope of the recall does not meet the requirements of corrosion resistance, and there will be a weakening of the fixation force due to corrosion, which may affect the sealing of the fuel tank in extreme cases.
The internal connecting rod riveting process of the changan Mazda CX-8 mid-row seat rail mechanism is not appropriate, and the seat may move forward due to the inability to lock the seat rail during the vehicle. Honda imported the 2021 CMX1100AM/DM motorcycle, due to improper management of the manufacturing mold of the engine radiator cover, resulting in the height of the outer side of the radiator cover claw buckle exceeding the specified upper limit, which is a safety hazard.