What is the ratio referred to as aspect ratio?

What Are the Reasons for Gearbox Shifting Noise?

The reasons for gearbox shifting noise are: 1. Damaged transmission housing; 2. Broken gear surface; 3. Improper transmission assembly. Methods for maintaining an automotive gearbox: 1. Replace automatic transmission fluid every 12 months or 20,000 kilometers; 2. Avoid coasting in neutral; 3. Regularly check the fluid level; 4. Avoid skipping gears when upshifting; 5. Do not force the transmission into neutral; 6. Do not shorten the idle warm-up time; 7. Avoid gear grinding when shifting; 8. Clean the transmission; 9. Avoid starting and driving without warming up the vehicle; 10. Perform regular maintenance on the automatic transmission. The functions of the gearbox are: 1. Change the transmission ratio; 2. Expand the torque and speed of the drive wheels; 3. Enable the vehicle to reverse; 4. Facilitate gear shifting or power output.

3

2

Share

Why Does BMW Use Run-Flat Tires?

BMW uses run-flat tires primarily because they are safer and more convenient, ensuring better travel safety for car owners. According to BMW's user manual, BMW's run-flat tires can continue driving up to 80 kilometers at a speed of 80 km/h after a tire blowout, meaning there's no need to change the tire on the spot—you can drive to the nearest repair shop for replacement. Additionally, BMW's run-flat tires help improve tire handling. Moreover, run-flat tires are synonymous with high-end quality, further highlighting the sophistication of BMW owners. Here are some related details: 1. Definition of Run-Flat Tires: Run-flat tires, also known as zero-pressure tires, do not actually prevent blowouts but rather strengthen the tire sidewalls, making them less susceptible to damage when encountering sharp objects. Even after losing air, they can continue supporting the car for a certain distance. Generally, cars equipped with run-flat tires are of higher grade and more expensive, as the production cost of run-flat tires is relatively high. 2. Advantages of Using Run-Flat Tires: (1) The likelihood of losing control after a tire blowout is reduced, and the car can still travel dozens of kilometers post-blowout, enhancing safety. (2) Run-flat tires are less prone to wear and have a longer lifespan. 3. Disadvantages of Using Run-Flat Tires: (1) Cars with run-flat tires offer less ride comfort compared to those with regular tires. (2) Run-flat tires are more expensive, and their maintenance costs are also higher in the long run.

4

0

Share

What is the actual fuel consumption of the Passat 1.8T?

The average fuel consumption of the Volkswagen Passat 1.8T is 6.5-8.5L/100km. Overall, the fuel efficiency is quite good, but actual consumption may vary depending on multiple factors. Factors affecting fuel consumption: 1. Spark plug carbon deposits: Increased carbon buildup or aging spark plugs can reduce ignition energy and stability, leading to higher fuel consumption. Urban drivers are advised to clean them every 20,000-30,000 km and replace them periodically based on the spark plug material. 2. Intake system cleanliness: Its condition directly affects engine performance and fuel consumption. Pay special attention to the air filter and throttle body. In northern regions, replace the air filter every 10,000 km; in southern regions, every 15,000 km. If possible, use compressed air to blow the filter at 5,000 km. Clean the throttle body every 20,000-30,000 km. The air flow meter also impacts fuel consumption, as its accuracy affects the air-fuel ratio. If faulty, replace it immediately. 3. Fuel injector cleaning: Poor fuel atomization can affect engine combustion and increase fuel consumption. Clean the injectors every 60,000 km. 4. Tire pressure monitoring: Low tire pressure increases the contact area with the road, raising fuel consumption and damaging tire walls. It also increases the risk of blowouts at high speeds. Maintain proper tire pressure. 5. Oil and fuel filter replacement: Many owners neglect regular replacement of these filters. A dirty fuel filter can send incorrect signals to the control unit, increasing fuel consumption. Replace both filters regularly. 6. Remove unnecessary items: Carrying extra weight increases fuel consumption. Tests show that every 10 kg added increases fuel consumption by 400 ml per 1,000 km. Remove unused items to save fuel. 7. Plan routes wisely: Planning routes to avoid traffic congestion saves both time and fuel.

17

2

Share

What is the trunk capacity of the Hyundai Elantra?

The trunk capacity of the Hyundai Elantra is approximately 460 liters. Here are some details about this car: 1. Trunk dimensions. The length, width, and height of the Hyundai Elantra's trunk are 1070 mm, 1040 mm, and 560 mm, respectively. 2. Body dimensions. The car's length, width, and height are 4610 mm, 1800 mm, and 1450 mm, respectively, with a wheelbase of 2700 mm. 3. Suspension. The Hyundai Elantra features a MacPherson strut front suspension and a torsion beam rear suspension.

2

Share

How to Turn on the Mute Function for the Tiguan Radio?

The method to activate the mute function on the Tiguan radio is as follows: 1. There is a knob at the bottom left corner of the screen. 2. Simply press the knob without rotating it to turn off the radio, which is the mute state. Additional information: 1. The car radio is a voice entertainment configuration installed in vehicles and is one of the earliest and most common features of in-car audio and video entertainment systems. Almost all cars are equipped with a radio. 2. In the radio settings options, click the "Settings" button on the right to view various radio settings, including receiving channels, storing favorite channels, or deleting unwanted channels.

8

2

Share

What does VSAOFF mean?

VSAOFF is the switch to turn off the Vehicle Stability Assist system. VSA system structure: It consists of various sensors such as wheel speed sensors, a yaw sensor that monitors vehicle dynamics, lateral and longitudinal acceleration sensors, a steering angle sensor that monitors driver operations, hydraulic sensors, and a hydraulic actuator that can actively apply hydraulic pressure to the four wheels. Additionally, similar to traction control, it communicates with the engine ECU to achieve engine control. Function of the VSA system: The VSA system helps drivers control the vehicle more smoothly, keeping it within normal driving limits as much as possible, providing a more reassuring driving experience. Especially in emergency situations such as sudden steering or driving on slippery roads, it maximizes vehicle safety.

18

4

Share

What is the ratio referred to as aspect ratio?

What Are the Reasons for Gearbox Shifting Noise?

Why Does BMW Use Run-Flat Tires?

What is the actual fuel consumption of the Passat 1.8T?

What is the trunk capacity of the Hyundai Elantra?

How to Turn on the Mute Function for the Tiguan Radio?

What does VSAOFF mean?

What kind of engine oil is good for Chery A5?

What is the fuel consumption per kilometer for the Haval H6?

What is the fuel consumption of the Toyota Sienna 3.5?

How many types of BMW blue are there?