How to Deal with Frequent Self-Cleaning of Fengjun 7 Diesel Vehicle?
2 Answers
Frequent self-cleaning of the Fengjun 7 diesel vehicle requires improvements and optimization of the automotive system. Below are relevant introductions about diesel vehicles: 1. Precautions: Pay attention to excessively high engine water temperature. First, move the vehicle to a ventilated and shaded area. Then, open the engine hood and wait for the coolant temperature to drop. If it is necessary to open immediately, use a large towel soaked in water, cover it on the antifreeze tank cap, and then try to slowly open the cap. When steam emerges, quickly move your hand away. Wait until the steam completely dissipates before finally opening the tank cap to add coolant. 2. Scrap Time: The vehicle will be mandatorily scrapped when the mileage reaches 600,000 kilometers, but the specific condition of the vehicle should also be considered. For commercial vehicles, the scrap time is 8 years. Every vehicle has a scrap time limit from the moment it is purchased, which is a system specified by the national transportation department. This system regulates the safety inspection requirements based on the number of seats and the period of use during the vehicle's service life.
I've been driving diesel vehicles for many years. When the Fengjun 7 starts frequent self-cleaning, it's most likely due to a clogged DPF filter or sensor issues. I've encountered similar situations before, mainly from frequent short city trips, which caused excessive carbon buildup in the filter, triggering self-cleaning almost daily—really annoying. Later, I changed my habits and started taking at least one highway trip every week, driving for over half an hour to raise the exhaust temperature and burn off the carbon deposits. This reduced the frequency to a normal once-a-week cycle. If highway driving doesn’t help, you should check the sensors or wiring—aging circuits might cause false alarms, and professional replacement may be necessary. Also, always use high-quality diesel fuel; cheap, low-grade fuel increases impurities that clog the system. Avoid prolonged low-speed idling and keep the engine active to reduce clogging risks. Ignoring it can lead to higher fuel consumption and part damage, so I recommend adjusting driving habits first, then inspecting if needed.
