How to Open and Close the Urea Tank Cap?
2 Answers
Urea tank cap opening and closing methods are as follows: 1. Use a mechanical key to open and close. 2. Locate the urea tank switch button and operate it via the button. 3. Press to open and close the vehicle's urea tank. Here is more information about automotive urea: 1. Automotive urea is an essential additive for SCR (Selective Catalytic Reduction), used to reduce nitrogen oxide pollution in diesel vehicle exhaust. Its composition consists of 32.5% high-purity urea and 67.5% deionized water. 2. Vehicles have a dedicated urea tank, and urea is consumed as long as the vehicle is running, so it must be replenished promptly. Generally, 100 liters of diesel consume about 4 liters of urea, but this varies depending on engine displacement, model, manufacturer, etc. Different road conditions and loads can also affect urea consumption.
Opening and closing the urea tank cap is actually quite simple, just find the right position and operate gently. I've been driving a diesel vehicle for many years, and every time I refill urea, I first park the car on a flat surface, ensure the engine is turned off—safety first. The urea tank is usually located near your fuel tank, with a separate small blue or black cap, similar in size and shape to a gasoline cap but specifically designed to prevent spills. When opening, hold the cap and twist it clockwise until you hear a click or feel it loosen, then you can remove it. Be careful not to spill urea when refilling, as it is highly corrosive; use a dedicated funnel to pour it in. After refilling, align the cap to its original position and tighten it clockwise until it can't move any further—that means it's securely closed. Common issues include not tightening it properly, which can lead to leaks and environmental contamination, or forcing it open and damaging the threads, which can be costly to repair. Remember, urea is used in the SCR system, and not filling it up will cause the engine to reduce power and become unable to run. My vehicle requires a refill every few thousand kilometers, but once you get into the habit, it's not difficult at all—just remember to wear gloves to keep things clean.
