Can the Vehicle Still Be Driven with Low Urea Level?

[EllianaLee]

Generally, diesel vehicles cannot be driven after the urea solution is depleted. Here are some additional details: 1. Function of automotive urea: The most basic function of automotive urea solution is to convert nitrogen oxides in vehicle exhaust into harmless nitrogen and water, which is energy-saving and environmentally friendly, enabling the vehicle to meet the national exhaust emission standards. 2. Precautions: Automotive urea must use electronic-grade ultrapure water. Since the SCR catalyst carrier is highly susceptible to metal ion poisoning, which can lead to loss of catalytic effectiveness, automotive urea solution must use electronic-grade ultrapure water.

[Regina]

I've been driving a diesel car for several years. When the AdBlue level warning light came on, I didn't pay much attention at first. Then I noticed the car couldn't reach higher speeds, as if the engine was being limited, making highway driving particularly difficult. Later, my mechanic friend explained that this AdBlue stuff is used for exhaust treatment. When the level gets too low, the car automatically limits power to prevent exceeding pollution standards. It's okay to drive short distances to a gas station for a refill, but don't delay too long - it might damage emission system components. My advice is to top it up immediately when you see the dashboard warning. Safety first - in my case, adding the solution fixed the problem right away.

[NolanFitz]

When the urea level is low, the vehicle can still run for a while, but the engine computer will intervene to reduce power to ensure safety. I've studied many vehicle systems, and AdBlue is used in SCR catalysis to reduce nitrogen oxides. An empty tank signal triggers the limited mode to prevent excessive exhaust emissions from harming the environment. Ignoring the issue for a long time will cause the vehicle to enter limp home mode, where it can only drive at low speeds, increasing risks. Before adding new urea, it's important to confirm there are no leaks; otherwise, topping it up won't help. This is crucial. My neighbor waited until the vehicle couldn't start before repairing it, wasting extra money.

[McAdriana]

I was terrified when the urea warning light came on shortly after I started driving, fearing the car would stop on the road. I immediately called a friend for help, who reassured me that most modern vehicles allow you to drive slowly to a refill station as long as you don't turn off the engine. Sure enough, I drove carefully back home and successfully refilled it. Turns out, it's an eco-friendly design with a buffer protection feature. New drivers are advised to learn to check the manual for alerts or install a monitoring app to track fluid levels promptly for peace of mind.