What are the reasons for the fuel gauge malfunction displayed in Porsche Cayenne?

What is the thickness of car tires?

Automobile tire tread thickness is generally 13mm, specifically consisting of 7mm tread pattern depth and 6mm tread thickness. Car tires generally follow technical standards, except for all-rubber tubeless tires. More information about car tires is as follows: 1. For general passenger cars, sharp objects exceeding 0.8 cm can easily puncture the tires, while for small trucks, sharp objects exceeding 1.5 cm can easily damage the tires. 2. For large trucks and buses, sharp objects of 2.5 cm can puncture the tires. For construction vehicles, objects exceeding 5 cm can puncture the tires. Special engineering vehicle tires have an outer tire thickness of up to 10 cm, making them essentially puncture-proof.

9

4

Share

What Causes the Tire Pressure Warning Light to Illuminate?

The reasons for the tire pressure warning light to illuminate are as follows: 1. The tire pressure monitoring light may come on due to a punctured tire. This situation usually involves very slow air leakage, making it difficult to immediately identify which tire is affected. In such cases, you can use a tire pressure gauge to measure the pressure (front tires: 2.3 bar, rear tires: 2.5 bar). If the pressure is low, inflate the tire accordingly and then monitor the warning light. If the light comes on again after a few days, it's necessary to remove the tire for inspection. 2. Sometimes, the tire pressure monitoring light may illuminate due to excessive tire pressure. According to the international standard GBT2978-2008, the recommended inflation pressures for car tires are as follows: Standard tires: 2.4-2.5 bar; Reinforced tires: 2.8-2.9 bar; Maximum pressure: should not exceed 3.5 bar. Therefore, if any tire exceeds 3.0 bar, it may trigger the tire pressure monitoring light. 3. Prolonged driving with low tire pressure can also cause the tire pressure monitoring light to come on. This typically occurs when a tire's pressure is too low, causing the tire temperature to rise during high-speed operation, which in turn increases the tire pressure. In such cases, it is advisable to stop and rest promptly or replace the tire with a spare one.

14

3

Share

What is the maximum age for obtaining a driver's license?

The provisions in the "Regulations on the Application and Use of Motor Vehicle Driving Licenses" are as follows: 1. For applying for small cars, small automatic transmission cars, small automatic transmission passenger cars for the disabled, and light motorcycles, the age must be between 18 and 70 years old; 2. For applying for low-speed trucks, three-wheeled cars, ordinary three-wheeled motorcycles, ordinary two-wheeled motorcycles, or wheeled self-propelled machinery, the age must be between 18 and 60 years old; 3. For applying for urban buses, large trucks, trolleybuses, or trams, the age must be between 20 and 50 years old; 4. For applying for medium-sized passenger vehicles, the age must be between 21 and 50 years old; 5. For applying for tractor vehicles, the age must be between 24 and 50 years old; 6. For applying for large passenger vehicles, the age must be between 26 and 50 years old.

2

5

Share

What is Ignition Advance Angle?

Ignition advance angle refers to the angle through which the crankshaft rotates from the moment of ignition until the piston reaches the top dead center of compression. The functions of ignition advance angle are: 1. To ensure the effective utilization of the energy generated by the combustible mixture; 2. To improve the engine's output power. The adjustment method for ignition advance angle is: 1. Check whether the platinum contacts have signs of burning; 2. Remove the secondary chamber vacuum hose from the vacuum advance compensation device, block the two ports connected to the hose, and let the engine idle; 3. Use an ignition timing light to check the ignition advance angle; 4. When rotating the distributor housing counterclockwise, the ignition advance angle will increase; 5. When rotating the distributor housing clockwise, the ignition advance angle will decrease.

1

0

Share

What type of engine oil is recommended for the Geely Borui 1.8T?

For the Geely Borui 1.8T model, it is recommended to use fully synthetic engine oil. The relevant details are as follows: 1. Since the vehicle's engine is equipped with a turbocharger, the engine operates under high temperature and high-speed conditions when the turbocharger is working, thus requiring higher lubrication performance from the engine oil. 2. Fully synthetic engine oil provides excellent lubrication, which can extend the engine's service life. Additional information is as follows: 1. Fully synthetic engine oil is a high-grade product among engine oils. It is derived from ethylene and propylene dispersed from natural gas or crude oil gas, which then undergo polymerization, catalysis, and other complex chemical reactions to form a lubricating fluid composed of large molecules. 2. Essentially, it utilizes the superior components of crude oil, subjected to chemical reactions and controlled human intervention to achieve the desired molecular structure. 3. The molecules in fully synthetic oil are neatly arranged, giving it strong resistance to external changes. Therefore, it has superior properties, such as better thermal stability, oxidation resistance, and viscosity stability compared to mineral and semi-synthetic oils, which is why it is more expensive.

2

5

Share

What does Mercedes-Benz's 4matic mean?

Mercedes-Benz's 4Matic is a full-time four-wheel drive system, with its core technology being the 4ETS differential limiting technology. 4ETS utilizes the automatic braking force distribution function of ABS to achieve differential limiting. Development of Mercedes-Benz 4Matic all-wheel drive system: The first-generation 4MATIC used lockable center and rear axle differentials. The center differential contained two sets of clutches, with each electronically controlled clutch operating independently to achieve various drive modes. The current Mercedes 4MATIC system employs open differentials at the front, center, and rear. The center/rear differentials feature a lockable multi-plate clutch structure, functionally serving the role of traditional differential locks. With the assistance of four-channel ABS, torque can be distributed to each wheel, maximizing driving safety and enabling strong off-road capabilities. Characteristics of Mercedes 4Matic all-wheel drive system: The 4Matic system is designed to be compact and lightweight while delivering optimized friction performance, showing significant advantages compared to other all-wheel drive systems. It also offers improvements in weight, fuel economy, comfort, and passive safety.

5

2

Share

What are the reasons for the fuel gauge malfunction displayed in Porsche Cayenne?

What is the thickness of car tires?

What Causes the Tire Pressure Warning Light to Illuminate?

What is the maximum age for obtaining a driver's license?

What is Ignition Advance Angle?

What type of engine oil is recommended for the Geely Borui 1.8T?

What does Mercedes-Benz's 4matic mean?

What is the difference between Pirelli P7 and P7KS?

Can You Step on the Accelerator During the Driving Test's Subject 2?

How to Turn Off the ECO Mode in the Car?

What are the functions of the Volvo XC60 key?