Browse

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Pet Supplies Sporting Goods Ticket Toys Games Transportation Others

Used Cars New Cars Others

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

Why does the urea light stay on after the urea tank is full?

2 Answers

AmeliaLee

07/24/25 5:25am

Urea is overfilled or the urea solution quality is substandard. Below are some principles of urea purification: 1. At temperatures between 70-75°C, urea undergoes hydrolysis in an aqueous solution. 2. At temperatures below 30°C, urea recrystallizes from the aqueous solution. 3. Each cycle of hydrolysis and crystallization significantly improves its purity. Generally, using industrial-grade urea and undergoing one hydrolysis-crystallization cycle can meet the requirements for automotive urea standards, with a yield ratio of 1.5:1. 4. 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 solutions must use electronic-grade ultrapure water.

Was this review help?

9

0

Share

RosalieRose

08/11/25 1:03am

I've driven diesel vehicles for many years and encountered situations where the urea light stays on even after a full refill, which is quite frustrating. Last time after adding AdBlue, the light didn't go off. My mechanic friend said it might be an issue with the fluid level sensor – sometimes dust or freezing can interfere, preventing it from detecting that the tank is truly full. The system's computer might also not have updated the status; you need to drive a few kilometers to let the exhaust heat up and recalibrate. If stuck in traffic for too long, carbon buildup can clog the urea injector or pump, causing the light to stay on as a warning. Winter makes it worse, as low temperatures can cause the urea solution to freeze, affecting the entire system's operation. Ignoring it leads to increased fuel consumption, exceeding emission standards, and in severe cases, speed limitation to protect the engine. It's advisable to take the car for a half-hour drive on the highway when possible. If the light still doesn't turn off, visit a professional workshop immediately for a computer diagnostic – don't delay until it breaks and costs a fortune to repair. Also, be careful not to mistakenly add windshield washer fluid instead of urea when refilling, as their formulations differ.

Was this review help?

6

1

Share

Expand All

More Forum Discussions

How to Reverse a Manual Transmission Car?

Manual transmission car reversing method: Depress the clutch and shift into R gear, release the foot brake and handbrake, slowly lift the clutch. Note that during the entire reversing process, do not fully release the clutch, as this can effectively control the speed. Generally, unless going downhill, you don't need to use the brake - the clutch alone is sufficient for speed control. If reversing to the right, turn the steering wheel right; if reversing to the left, turn it left. When you see the car entering the parking space straight, straighten the steering wheel. Before parking in a parking space, first visually estimate the width of the space, check for any obstacles behind, whether there are cars parked on both sides, and if the length suits your vehicle model. If visibility is poor at night, step out to observe the exact position before reversing.

Where is the key induction for Zotye T600?

Zotye T600's key induction is located in the center armrest storage box. You can see it by prying up the left outer handle cover with the key. In terms of interior, the Zotye T600 adopts a simple style, featuring a floating central control screen that enhances the sense of technology. The vehicle is equipped with one-key start, keyless entry, electronic parking, reversing camera, full LCD instrument panel, automatic air conditioning, and body stability system, along with added mobile phone connectivity and intelligent voice control. For the powertrain, the Zotye T600 is powered by 1.5T and 1.8T engines, delivering maximum horsepower of 140ps and 177ps, and peak torque of 207nm and 245nm respectively. In terms of transmission, the 1.5T model comes with a 5-speed manual or 6AT gearbox, while the 1.8T model is paired with a dual-clutch transmission.

What is the vehicle used for towing called?

The vehicle used for towing is called a wrecker, also known as a tow truck or recovery vehicle. It consists of a chassis, lifting device, towing and pulling device, hydraulic system, electronic control system, body, and tool compartment, among other components. It has multiple functions such as lifting, pulling, and towing, making it suitable for clearing obstacles on highways and urban roads. It is primarily used for dealing with broken-down vehicles on the road, urban traffic violations, and emergency rescue operations. Here is some relevant information about wreckers: Introduction: A wrecker is a specialized vehicle equipped with road rescue operation equipment. Since vehicle breakdowns and accidents are inevitable while driving, especially on highways, such incidents occur frequently. Task: The primary task of a wrecker is to promptly remove broken-down or accident vehicles from the scene to ensure smooth traffic flow. Therefore, wreckers are also known as road rescue vehicles. With the increase in high-grade roads and the number of vehicles in use, wreckers have also seen development.

Is a Water Temperature of 100 Degrees Normal in Summer?

Generally, the normal operating temperature range for most passenger vehicles is between 80°C and 105°C. Concept: The car radiator, also known as the heat exchanger, is a key component in the vehicle's cooling system. Its function is to dissipate heat. Coolant absorbs heat in the water jacket, flows to the radiator to release that heat, then returns to the water jacket to complete the cycle, thereby regulating temperature. It forms an integral part of the automobile engine. Working Principle: The radiator serves as a crucial element in water-cooled engines, being a vital component of the engine's cooling circuit. It absorbs heat from the cylinder block to prevent engine overheating. Due to water's high specific heat capacity, the temperature increase after absorbing cylinder block heat remains relatively moderate. Thus, the engine's heat is transferred through this liquid cooling circuit.

Is China United Oil legitimate?

Legitimate, but it is recommended to refuel at large gas stations such as PetroChina. Different origins: China United Petroleum Corporation is a petroleum foreign trade company jointly established by China National Petroleum Corporation and China National Chemicals Import & Export Corporation; whereas Sinopec is a super-large petroleum and petrochemical enterprise group reorganized in July 1998 on the basis of the former China Petrochemical Corporation, a state-owned company solely invested by the state, an institution authorized by the state for investment, and a state-controlled company. Geographical differences: Geographical differences: China United Oil has more oil fields; Sinopec has more refineries. "PetroChina" and "Sinopec" are basically divided between the "North" and the "South." That is, the North is the territory of China United Oil, while the South is the territory of Sinopec. However, the situation has changed in recent years, just as Netcom and Telecom began to move south and north.

What is the biggest difference between genuine and fake Giant bikes?

The differences between genuine and fake Giant bikes lie in the price and frame number. Price: This is the most direct and quickest way to distinguish. Most counterfeit products on the market come with extremely cheap and tempting prices. Once you get your hands on them, you'll find the materials are of poor quality, the workmanship is rough, and the pedaling rigidity, braking stability, etc., cannot be guaranteed at all—it's definitely a 'big killer.' Frame Number: Every genuine GIANT bicycle has a unique frame number. Near the stamped number, there is also a barcode, and the number on the barcode matches the frame number on the five-way connection. Additionally, the number on the barcode of the front fork matches both of the aforementioned numbers. Counterfeit GIANT bicycles usually either lack a frame number or have a frame number that has been intentionally damaged.

Trending Ranking

What to Do When the Car's Water Temperature is Too High in Summer?

Where to Add Engine Coolant for BMW 5 Series?

How to Remove the Rear Seat Cushion of the Buick Verano?

Can the Odyssey use 95 octane gasoline?

Do You Need to Replace a Pair of Shock Absorbers If One is Broken?

How to Shift from S Mode to D Mode?

Where is the thermostat located in the Mercedes-Benz GLK200?

How many cylinders does the Venucia T70 engine have?

What brand is the engine of the Yuhu 3?

Which BMW 740 model is four-wheel drive?

More Forum Discussions

Can motorcycles apply for license plate replacement?

What brand is the domestic Tiida?

What type of engine oil does the Toyota Sienna use?

Where is the Tank's Fuel Tank Located?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.