What is the fault indicated by Jiangling Transit DEF?
2 Answers
Jiangling Transit DEF indicates a lack of water in the auxiliary tank. Here are the specific details about the car's water tank: 1. Working principle: The car's water tank, also known as the radiator, is a key component in the car's cooling system. Its function is to dissipate heat. The coolant absorbs heat in the water jacket, flows to the radiator to release the heat, and then returns to the water jacket to circulate, achieving temperature regulation. 2. Impact of water tank faults: Insufficient water level, rust in the water tank, or leaks can directly cause the water tank temperature to reach the boiling point. At this time, the engine's heat dissipation is poor, and the temperature is too high. The expansion of parts will reduce the clearance between components, and on the other hand, the high temperature will reduce the viscosity of the engine oil. Under these conditions, the wear of components will intensify. If not handled appropriately immediately, the engine may burn out, leading to serious mechanical damage accidents.
I've been driving a diesel vehicle for many years, and a common DEF fault I've encountered with the JMC Transit is the DEF low-level warning. The vehicle will display a yellow warning light, and at this point, the engine power may be limited, making it particularly difficult to drive. DEF stands for Diesel Exhaust Fluid, which is used to treat exhaust emissions. If this warning is ignored and the DEF runs out, the vehicle may be directly limited to 30 kilometers per hour, affecting safe driving. The check is simple: first, see if the DEF tank is empty and try filling it with dedicated urea fluid. If the level is sufficient but the fault persists, it might be a sensor failure or a clogged nozzle. It's advisable to visit a professional repair shop early to avoid breakdowns on the road. DEF system maintenance costs are not high, but neglecting it can increase repair expenses. It's a good habit to regularly pay attention to the dashboard indicator lights while driving.
