Does Not Using Urea in China V Vehicles Affect the Engine?

[BennettRose]

Not using urea in China V vehicles has a severe impact on the engine because it prevents the engine's electronic control system from detecting urea injection. When exhaust pollution exceeds the standard, the system will forcibly limit the engine's torque output, reducing the engine's power. The following are the reasons why China V vehicles do not use urea: Urea Pump Damage: If a China V vehicle is not using urea, the first thing to check is whether there is an issue with the urea pump. If the urea pump is damaged to varying degrees, it will directly cause the vehicle to stop using urea, as pump damage can lead to leakage, resulting in pressure build-up failure and the inability to inject urea. Urea Line Blockage: The most common cause of urea line blockage is substandard urea solution. If the urea solution contains impurities, it can lead to blockages in the urea lines. If not inspected and maintained for a long time, the urea may gradually fail to be delivered and injected, and the engine's electronic control system will not be able to detect the urea.

[CarterFitz]

I've been driving a China V diesel vehicle for a while now, and personal experience has taught me that not using urea is definitely a big problem. Once you drive with an empty urea tank, it doesn't take long for the vehicle to become sluggish and powerless, with various warning lights flashing on the dashboard. It turns out the engine enters a restricted mode, automatically reducing torque to protect the system. This not only makes driving uphill difficult but also makes overtaking on the highway a nerve-wracking experience. Over time, the catalytic converter in the emission system can get clogged or burnt out, and repairs are no small expense—costing several thousand yuan each time. The most frustrating part is the increased carbon buildup inside the engine, leading to poorer combustion efficiency, unstable power output, and directly affecting its lifespan. Make it a habit to regularly check urea levels and top up in time to avoid these small mistakes, ensuring a smoother and safer driving experience.

[VonKeira]

For frequent drivers, saving money by not using urea might seem like a good idea, but it actually leads to greater losses. Driving with an empty urea tank can result in hefty fines during environmental inspections—starting at hundreds of yuan per violation. More importantly, the engine's computer automatically limits power, causing fuel consumption to skyrocket, reducing mileage by dozens of kilometers per tank. I’ve done the math: a barrel of urea costs just a few dozen yuan, but if the system fails, repairs can easily exceed a thousand yuan. Considering that exhaust treatment components are prone to high-temperature damage, accelerating engine carbon buildup, the long-term impact on reliability and resale value is significant. My advice: don’t skimp on this small expense. Regularly replenishing urea keeps your vehicle running green, saving you hassle, money, and the environment.

[VanJude]

From a technical perspective, China V vehicle urea reduces harmful emissions through exhaust treatment. If urea is not replenished in time, emissions will exceed standards, sensors may falsely report fault codes, and the engine control unit will automatically limit torque output. This directly leads to increased fuel consumption and uneven power delivery. Over time, the aftertreatment system may become clogged, affecting the overall combustion efficiency of the engine. While it won't immediately damage the engine block, it accelerates component wear and reduces overall performance. Remember to replenish urea regularly to ensure system smoothness and avoid unnecessary troubles.