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What is the service brake and what is the brake pedal?

1 Answers

Delilah

07/30/25 2:02am

The service brake usually refers to the foot brake or handbrake of a car, commonly known as the brake. The brake pedal, as the name suggests, is the pedal that controls the power, i.e., the pedal of the foot brake (service brake), used for deceleration and stopping. It is one of the five major operating components of car driving and is used very frequently. The function of the service brake: To decelerate the car as needed or stop it within the shortest distance, and maintain a stable speed when driving downhill. The use of the service brake: During driving, the service brake (foot brake) is generally used to facilitate deceleration and stopping while moving forward. It keeps the car stationary. The parking brake is used only when the service brake fails. Once the car is stopped, the parking brake (handbrake) should be applied to prevent the vehicle from sliding forward or rolling backward. Methods for maintaining the brake system: Regularly replace the brake fluid: Many car models now specify replacing the brake fluid every two years or 40,000 kilometers. Even for cars that are parked for long periods without use, the brake fluid should be replaced after two years because the brake fluid continuously absorbs moisture from the air. After replacing the brake fluid, the moisture in the brake fluid will naturally be eliminated. Regular inspection and maintenance: When the brake pedal feels soft, it should be immediately checked at a repair shop. The most common solution is to bleed the brake system, removing the air from the brake fluid at the four brake calipers. Although it may not completely eliminate all the air in the entire pipeline, it can minimize the presence of air to the greatest extent.

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How is the ETC charged on highways?

The specific timing of ETC highway toll deductions is as follows: For ETC stored-value cards, users must pre-deposit funds before use, and deductions are made immediately. For ETC credit cards, which have an overdraft function, banks tally the deduction details once daily. Users only need to repay the credit card bill by the due date. For ETC debit cards, no immediate charge is made when passing through highway toll stations. The system records the user's passage and automatically deducts the corresponding tolls in batches from the user's authorized bank account. Due to varying regional efficiencies, there is no fixed deduction time for debit cards, but deductions are typically made monthly. Users can also set a billing date to check the ETC fees for the current month. ETC stands for Electronic Toll Collection, meaning an electronic toll system. To apply, the vehicle owner must provide a valid ID and the original and photocopy of the vehicle registration certificate. If applying through an agent, the agent's valid ID and photocopy are also required. The photocopy of the vehicle registration must include the page with the most recent annual inspection stamp. Additionally, a bank card for toll deductions is needed, and the applicant must be between 18 and 60 years old, with the vehicle registered under their name. For company vehicles, the required documents include: A letter of introduction from the vehicle owner (with official seal); photocopy of the organization code certificate or business license (with official seal); original and photocopy of the agent's ID; original vehicle registration certificate; and the vehicle to be registered for ETC. How ETC works: An onboard electronic tag installed on the vehicle's windshield communicates with microwave antennas in the ETC lane at toll stations. Using networked computer technology, the system settles payments with the bank in the background, allowing vehicles to pass through highway or bridge toll stations without stopping to pay. Benefits of installing ETC: Time-saving: Eliminates the hassle of waiting in line; Green and eco-friendly: Reduces noise and exhaust emissions by allowing vehicles to pass without stopping; Cost-saving: Reduces vehicle wear and fuel consumption by minimizing starts and stops; Improved efficiency: ETC lanes can theoretically increase passage efficiency by 2-3 times, making traditional ETC faster and more advanced. Compared to license plate payment, ETC technology is more mature and advantageous.

What Causes Abnormal Tire Wear?

Abnormal wear on a car's tires may occur due to either excessively high or low tire pressure, leading to irregular friction on the tires. Alternatively, sharp objects puncturing the tires can also cause abnormal wear. More details are as follows: 1. Car tires help absorb shocks during driving, improving traction and off-road performance. The quality of tires significantly impacts the vehicle's handling. 2. It's essential to monitor tire temperature changes, as rising temperatures increase tire pressure, accelerating rubber aging. During hot weather, controlling tire temperature is crucial. Tire pressure can be monitored using a tire pressure monitoring system. 3. High-quality tires ensure better comfort and smoother rides. Regular maintenance is necessary to keep tires in optimal condition. Tires are among the most critical components of a car—without them, the vehicle cannot operate.

What are the causes of Jaguar XJ transmission failure?

Jaguar XJ transmission failure reasons: Excessive transmission temperature: After high-intensity driving, the transmission temperature can rise abnormally, causing the warning light to illuminate. In this case, simply park the vehicle and wait for the temperature to naturally decrease; Insufficient transmission fluid: When the transmission fluid is low, the transmission warning light will illuminate to remind the driver to replenish it promptly. Generally, transmission fluid should be replaced and refilled after the vehicle has been driven approximately 50,000-80,000 kilometers; Transmission gear slippage: If the warning light comes on due to transmission gear slippage, it is necessary to have it inspected by professionals at a repair shop or 4S dealership.

What is the actual fuel consumption of the Audi Q5?

Audi Q5's fuel consumption ranges from 8.2 to 9.9L/100km. Here is the relevant information: 1. Vehicle positioning: The Audi Q5 is a dynamic and versatile SUV. With excellent performance and technological advantages, the Michelin Pilot Preceda PP2 high-performance sports tire has recently become the original equipment tire for the premium midsize SUV Audi Q5. 2. Powertrain: The Audi Q5 is equipped with three engine options—one TFSI gasoline engine and two TDI diesel engines. All three engines feature fuel direct injection and turbocharging technology, delivering powerful performance, strong traction, quiet operation, and outstanding fuel efficiency.

Where is the fuse box located in a Volkswagen Polo?

The fuse box in the Volkswagen Polo is located at the bottom of the dashboard under the steering wheel and in the engine compartment. Before replacing a fuse, ensure the ignition switch and the corresponding electrical device are turned off. Types of fuse boxes: Fuse boxes can be categorized into lead-type fuse boxes and automotive fuse boxes. Common injection molding materials for fuse boxes include: plastic, nylon, bakelite, and PBT engineering plastic. Each material has different levels of heat resistance. Selection of fuse boxes: When selecting a fuse box, consider the current rating of the fuse being used, the size requirements of the fuse, and the wire gauge. The higher the current rating of the fuse, the larger the wire gauge should be to match the fuse box. Otherwise, it may cause the fuse box and wires to overheat, leading to a fire.

Volkswagen Phideon Ground Clearance?

Minimum ground clearance is 123mm. Below are related details: 1. Due to its relatively wide body, the Phideon feels very stable when driven, yet this large body doesn't make you feel cumbersome. 2. The suspension performs excellently; you can only visually perceive the vehicle moving laterally, with minimal roll sensation. 3. The suspension tuning feels slightly soft, which is undoubtedly related to the Phideon's focus on comfort. The suspension handles speed bumps or large potholes exceptionally well, often requiring no avoidance or deceleration—driving over them directly results in minimal bumpiness. However, it doesn't handle minor vibrations as effectively, and some small vibrations still transmit into the cabin.

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