What does TFSI mean in Audi Q3?

What is the speed matching for each gear?

Speed matching for different gears: 1st gear 10 km/h; 2nd gear 20 km/h, 3rd gear 20-40 km/h. 1st gear: Used for normal starting or climbing very steep slopes. When using this gear, the speed is generally around 10 km/h; 2nd gear: Used as a transitional gear for acceleration after starting, or for low-speed driving or climbing steep slopes, with a speed generally around 20 km/h; 3rd gear: Speed range is 20-40 km/h

11

1

Share

How Often Should You Add Water to a New Car?

Generally, new cars require water (antifreeze) replacement every two years or every 30,000-40,000 kilometers driven. For vehicles with high usage frequency, replacement should be done earlier depending on the situation. The coolant in the radiator is mainly replaced, with top-ups being rare, as the coolant level does not significantly decrease during its warranty period unless unexpected issues occur. After the warranty period, it is essential to replace the coolant in the radiator promptly. If the coolant level drops below the minimum mark during the warranty period, it is also necessary to add coolant immediately. Choosing Antifreeze: Select antifreeze based on the vehicle's origin. Generally, antifreeze for domestic vehicles and imported vehicles cannot be mixed. Therefore, when purchasing, choose the appropriate antifreeze according to your vehicle's origin. This is because the rust inhibitors, defoamers, and dyes in imported vehicles differ chemically from those in domestic antifreeze. Mixing them can cause chemical reactions, leading to scaling, corrosion, and other adverse effects. Checking Antifreeze: Before completely replacing the antifreeze, conduct a thorough inspection to check for any signs of leaks or cracks in the pipes. Pay special attention to the five-way water pipe, named for its five connecting interfaces to various parts. Antifreeze flows through the five-way pipe and is distributed to different parts of the car to function. If there are signs of antifreeze leakage in this section, replace the water pipe or re-secure the interface as needed.

11

3

Share

How to deal with the violation of passengers not wearing seat belts?

If a passenger does not wear a seat belt and violates the traffic rules, no points will be deducted, but a fine will be imposed. If the violation is captured by an electronic eye or traffic police, the violation information will be sent to the driver's mobile phone or displayed on the traffic management APP linked to the driver. If the violation is discovered on-site by the traffic police, a direct fine will be issued. Seat belts are designed to protect both passengers and the driver in case of danger during driving. Therefore, the first thing to do after getting into the car is to fasten the seat belt, especially for the driver, who should promptly remind passengers to buckle up. Legal basis: Article 90 of the "Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China" states that if a motor vehicle driver violates the road traffic safety laws and regulations regarding road traffic rules, a warning or a fine will be imposed. If there are other provisions in this law, the punishment shall be carried out according to those provisions. Passengers not wearing seat belts is also considered a violation by the driver. To encourage both drivers and passengers to use seat belts, it is stipulated that if a driver does not wear a seat belt as required while driving on highways or urban expressways, 2 points will be deducted for each violation. If a taxi passenger does not wear a seat belt and the driver fails to remind them or there is no prompt in the vehicle, the taxi driver will also face point deductions and penalties.

7

0

Share

How much pressure is released in 3 seconds when manually deflating a tire?

Without specialized tools, you can only use a valve core wrench or a fine-pointed object to press against the valve core for manual deflation. However, it's important to control the force and deflate slowly for about 3 seconds, which can release approximately 0.2-0.3 bar of tire pressure. Below are specific details about tires: 1. Function: Automobile tires are one of the crucial components of a vehicle. They directly contact the road surface and work together with the vehicle's suspension to absorb shocks during driving, ensuring good ride comfort and smooth operation. They also ensure excellent adhesion between the wheels and the road, improving traction, braking, and off-road capability. Additionally, they bear the vehicle's weight, and the significant role tires play in automobiles is increasingly recognized. 2. Maintenance methods: Pay attention to tire pressure, as it is vital to tire longevity. Both excessively high and low pressure can shorten a tire's lifespan. Low pressure increases tire body deformation, leading to cracks on the tire side and causing flexing movements that generate excessive heat, accelerating rubber aging, fabric layer fatigue, and cord breakage. Low pressure also increases the tire's contact area with the road, accelerating shoulder wear. High pressure, on the other hand, overextends the tire cords, reducing the tire body's elasticity and increasing the load the vehicle bears while driving. This can lead to internal cracks and blowouts upon impact, while also accelerating tread wear and reducing puncture resistance.

15

5

Share

What does officially certified used car mean?

Used car official certification is initiated by a third-party organization, which conducts objective vehicle valuation through evaluation and inspection. Here is the relevant introduction: 1. Used car: A used car refers to a motor vehicle that has been registered with the public security traffic management authority, is in service before reaching the national prescribed scrapping standard or within its economic service life, and can still be used. 2. Notes: Used car certification refers to a written proof issued by a third-party used car appraisal and evaluation agency regarding the information, procedures, actual condition, and market price of a used vehicle. Used car certification agencies must fairly and impartially certify vehicles and bear corresponding certification responsibilities.

20

2

Share

Is it necessary to replace the valve cover?

The valve cover does not necessarily need to be replaced. If the valve cover is leaking oil, simply replacing the sealant is sufficient. If there are no issues, replacement is not required. Additional information: 1. Introduction to the valve chamber: In engine structure, the cavity space where the valve ends are located is called the valve chamber. In most automotive engine structures, the valve ends are connected to the camshaft via tappets or pushrods; the camshaft controls the valve movement, and in modern engines, the camshaft is more commonly positioned above the cylinder head. 2. Possible causes of valve chamber oil leakage may include: (1) Aging and brittleness of the valve cover gasket, which loses its sealing ability and leads to oil leakage. (2) Blockage of the crankcase forced ventilation valve, causing an increase in crankcase pressure, which then releases pressure through the valve cover gasket or other weak points, resulting in oil leakage.

11

2

Share

What does TFSI mean in Audi Q3?

What is the speed matching for each gear?

How Often Should You Add Water to a New Car?

How to deal with the violation of passengers not wearing seat belts?

How much pressure is released in 3 seconds when manually deflating a tire?

What does officially certified used car mean?

Is it necessary to replace the valve cover?

What kind of marking is composed of white dashed lines and triangular zone markings?

Will the fuel subsidy for taxis be canceled by 2021?

What are the four major automotive groups?

Can You Take the Driving Test (Subject 2) on a Rainy Day?