What is the reason for the clunking sound when reversing a BMW X3?

Why is the fuel consumption of Venucia T90 so high?

The reasons for the high fuel consumption of Venucia T90 are as follows: 1. Poor driving conditions: Driving in areas with poor road conditions will increase fuel consumption. 2. Excessive engine carbon deposits: This leads to high fuel consumption, and it is necessary to check the spark plugs and throttle. Relevant information about car fuel consumption is as follows: 1. Constant speed fuel consumption: This refers to the fuel economy indicator when the car is driving at a constant speed on good road conditions. Since constant speed driving is a basic operating condition for cars on highways, and this type of fuel consumption is easy to measure, it is widely adopted. 2. Road cycle fuel consumption: This is the fuel economy indicator measured when the car is driving in repeated cycles according to specified speeds and time norms on the road, also known as multi-condition road cycle fuel consumption. In the speed and time norms, each cycle includes various driving conditions, and specifies the gear shifting moments, braking and stopping times, as well as the values of driving speed, acceleration, and braking deceleration for each cycle.

6

3

Share

Where to View the Vehicle Purchase Tax Invoice?

Vehicle purchase tax invoices can be viewed on the electronic tax bureau's website. More information about vehicle purchase tax is as follows: 1. Introduction: The vehicle purchase tax invoice serves as proof of payment for the vehicle purchase tax. When purchasing a motor vehicle, you need to obtain a unified motor vehicle sales invoice. The third copy of this invoice is the tax declaration copy, which is retained by the tax bureau when paying the vehicle purchase tax. The tax bureau will then issue a tax payment certificate (vehicle purchase tax invoice) to you. The fourth copy is the registration copy, which is retained by the vehicle registration unit during the license plate registration process, along with the vehicle purchase tax payment certificate. 2. Payment: Vehicle purchase tax is paid at the relevant counter of the national tax bureau. Generally, you can find the vehicle purchase tax payment counter at the local administrative service center. To pay the vehicle purchase tax, you need to bring the original and a copy of the third copy (tax declaration copy) of the new vehicle invoice, the original and a copy of the vehicle owner's ID card, and the original and a copy of the vehicle qualification certificate. Additionally, you should bring a bank card, as vehicle purchase tax payments are made via card transactions and cash payments are not accepted.

4

1

Share

What does 'Subject 2 application in progress' mean?

If it shows 'application in progress', it means the appointment has not been successfully scheduled yet and is still being processed. You need to wait patiently. Here are some tips for successfully scheduling Subject 2 test: 1. Schedule early: Try to make an appointment as early as possible within the time period when the system allows trainees to schedule. 2. Avoid peak periods: Stay away from scheduling peaks, which means don't choose test sessions marked as 'crowded'. 3. Choose higher-ranked sessions: Prioritize test sessions with higher ranking in the appointment queue. Additional information: For first-time applicants for motor vehicle driving licenses or those applying to add permitted vehicle types to schedule Subject 2 test, the following regulations apply: 1. Note 1: For applicants of small cars, small automatic transmission cars, low-speed trucks, three-wheeled cars, small automatic transmission passenger cars for the disabled, wheeled self-propelled machinery, trolleybuses, or tramcars, the test can be scheduled 10 days after obtaining the learning driving certificate; 2. Note 2: For applicants of large buses, tractors, city buses, medium buses, or large trucks, the test can be scheduled 20 days after obtaining the learning driving certificate.

14

0

Share

What are the general structures of an automobile engine?

The general structure of an automobile is basically composed of four parts: 1. Engine: The engine is the power plant of the automobile. Its function is to burn fuel to generate power, which then drives the wheels through the transmission system of the chassis to make the car move. There are mainly two types of engines: gasoline engines and diesel engines. A gasoline engine consists of a crank-link mechanism, a valve mechanism, a fuel supply system, a cooling system, a lubrication system, an ignition system, and a starting system. 2. Chassis: The chassis supports and installs the automobile engine and its various components and assemblies, forming the overall shape of the automobile, and receives the power from the engine to make the automobile move and ensure normal driving. The chassis is composed of four parts: the transmission system, the running system, the steering system, and the braking system. 3. Body: The body is installed on the frame of the chassis and is used for the driver, passengers, or loading goods. The body of a car or bus is generally an integrated structure, while the body of a truck is generally composed of a cab and a cargo box. 4. Electrical equipment: It provides power for automobile starting, driving, and automobile auxiliary facilities. It is mainly composed of a power supply, starting system, ignition system, as well as automobile lighting, signals, and auxiliary electrical facilities.

2

1

Share

How Long Can You Drive Without Water in the Car Radiator?

When the engine is cold, you can generally drive for about 1-3 kilometers without water in the radiator. However, if the engine is already hot, continuing to drive will damage the engine. The car radiator, also known as the heat exchanger, is a key component of 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 in a continuous cycle. This achieves the effect of heat dissipation and temperature regulation, making it an essential part of the car engine. When the car radiator is low on water, the dashboard will display a radiator water shortage indicator, which typically appears as a thermometer symbol. Effects of low water in the car radiator: Temperature rise: If the car radiator lacks water, the temperature inside the cylinders will rise rapidly. Overload operation: If the vehicle continues to be driven, the car components will operate under overload conditions, weakening the strength of parts such as pistons, piston rings, and connecting rods, and may even cause deformation. Component damage: At the same time, the gaps between parts will be compromised. In mild cases, this can lead to cylinder or bearing wear, while severe cases may result in complete engine failure. Solutions: In emergency situations, distilled water can be used as a temporary substitute for car antifreeze. After driving to the nearest service point, antifreeze should be replenished immediately. When adding antifreeze, be sure to drain the distilled water from the radiator to prevent antifreeze degradation. Never use tap water as a substitute, as it contains minerals that can form scale in the radiator pipes when heated. In severe cases, the scale can clog the engine's cooling system.

4

Share

How to Measure the Condition of Spark Plugs?

Spark plugs exhibit the following symptoms when they may be faulty: Difficulty in starting the car, both cold and warm starts are challenging, often requiring multiple attempts. Engine shaking, noticeable vibrations while driving the car. Lack of power, a significant decrease in performance compared to normal conditions. Increased fuel consumption. Stalling. Failed emissions tests. Common causes and diagnosis of spark plug failures: Several common issues can prevent spark plugs from functioning properly: Incorrect spark plug gap adjustment. If the gap is too small, it limits the contact area between the spark and the air-fuel mixture and suppresses flame kernel growth due to the quenching effect of the electrodes. Even if a spark occurs, it is weak, making it difficult to ignite the mixture. If the gap is too large, the ignition system may not provide sufficient voltage to create a spark between the electrodes. Cracked spark plug skirt. High-voltage current can leak through the crack, preventing a spark from jumping between the electrodes. Electrode carbon buildup, causing the center electrode to leak current to the surroundings instead of jumping to the side electrode. Excessive carbon deposits can short-circuit the spark plug, preventing it from sparking, which may further damage the insulator and the spark plug itself. Damaged electrodes. Prolonged electrical erosion from sparks or chemical corrosion from combustion gases can cause the electrodes to break or fall off, preventing sparking. Low insulation resistance of the spark plug. This condition reduces the ignition voltage applied to the spark gap, weakening the spark or even completely disabling the ignition function. Short circuit in the high-voltage wires. If the high-voltage ignition wire from the ignition coil to the distributor leaks, the entire engine may fail to start. If the wire from the distributor to the spark plug leaks, the spark plug in one cylinder may not spark. Burnt platinum contacts. This can prevent all spark plugs from sparking, making the engine unable to start or run normally. Faulty spark plugs should be replaced promptly. The replacement steps are as follows: Open the hood, remove the plastic engine cover, and disconnect the high-voltage wires. Mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. Check for external debris like leaves or dust and clean thoroughly. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, then use the socket to tighten it further. Reinstall the high-voltage wires in the correct firing order and reattach the cover. Spark plug replacement interval: Typically, spark plugs should be replaced every 40,000 to 60,000 kilometers under normal maintenance conditions. However, this may vary depending on the brand and engine type, so it's best to follow the manufacturer's manual.

6

2

Share

What is the reason for the clunking sound when reversing a BMW X3?

Why is the fuel consumption of Venucia T90 so high?

Where to View the Vehicle Purchase Tax Invoice?

What does 'Subject 2 application in progress' mean?

What are the general structures of an automobile engine?

How Long Can You Drive Without Water in the Car Radiator?

How to Measure the Condition of Spark Plugs?

What does the automotive DMS system mean?

How to fix trouble code p0011?

Is It Normal for the Car Malfunction Light to Disappear After Ignition?

What Causes the Small Dots on Car Window Tinting?