At what tire pressure should a car no longer be driven?

Where is the Roof Drain Hole Located?

Roof drain holes refer to sunroof drain holes, which are located at the A-pillar and C-pillar of the car. The relevant introduction about drain holes is as follows: Concept of Drain Holes: Vehicle drain holes are outlets designed to drain accumulated water from the vehicle during rainy weather. Generally, drain holes are located in the engine compartment near the front windshield, in the four corners inside the sunroof, at the lower part of the front and rear doors, inside the fuel tank cap, at the bottom of the spare tire in the trunk, and in the gaps between the front and rear headlights and the fenders. Precautions for Using Drain Holes: There is usually a drain hole under the fuel tank cap. If it becomes clogged, water accumulation in the fuel tank during car washes or rainy weather can lead to fuel tank damage. The spare tire in the trunk is generally located at a lower part of the vehicle. When driving through water, if the water level rises above the headlights, water can seep in and reach the interior. The drain holes in this area are used less frequently.

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Which is more fuel-efficient, the Geely Boyue or the Changan CS55?

The Changan CS55 is slightly more fuel-efficient. The differences between the two can also be seen in the following aspects: First aspect: Exterior design. The biggest advantage of the Boyue is that its exterior design incorporates Chinese elements, aligning with Chinese aesthetic preferences. The overall appearance is robust and grand, designed by a renowned high-end designer. The family-style water ripple grille, combined with the fighter jet-inspired air intake design on both sides of the grille, gives the Geely Boyue a youthful and dynamic look. The body dimensions are 4519*1831*1694mm with a wheelbase of 2670mm, which is relatively large for a compact SUV, enhancing passenger comfort. Changan's new family-style exterior design features a black hexagonal grille accented with silver trim, and the front headlights on both sides have a more structured appearance. The front bumper of the new model is more robust, paired with a silver skid plate, creating a strong visual effect. The Changan CS55 has body dimensions of 4500*1855*1690mm and a wheelbase of 2650mm. Second aspect: Interior design. The Boyue's dashboard uses a combination of silver and black tones, while the seats and door panels feature a brown design, giving an overall impression of sophistication and technological appeal. The multifunctional three-spoke steering wheel has a flat-bottom design, providing more legroom. Except for the base model, all variants come with leather-wrapped steering wheels for better grip. The Changan CS55 primarily uses a black color scheme, with a classic three-spoke steering wheel design. The central console features a liquid crystal display, adding a modern touch. Interestingly, the new model's seats are wrapped in leather with red stitching, creating a strong sporty atmosphere. Third aspect: Powertrain. The Boyue still uses 1.8T and 2.0L engines, with the 2.0L engine delivering a maximum power of 141Ps and peak torque of 178Nm, paired with a 6-speed manual transmission. The Boyue features a front MacPherson independent suspension and a rear multi-link independent suspension. The Changan CS55 is equipped with a BLUECORE 1.5T turbocharged engine, producing a maximum power of 115kW, mated to either a 6-speed manual or a 6-speed automatic transmission.

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Where is the outside temperature sensor located?

Typically, the outside temperature sensor is installed at the front bumper grille. Its main function is to provide the ECU with the temperature signal outside the vehicle cabin. Composition and working principle of the outside temperature sensor: It usually consists of three parts: a sensing element, a conversion element, and a measurement circuit. The sensing element is the part that directly senses (or responds to) the measured quantity, converting the measured quantity into a non-electrical quantity or other quantity that has a definite relationship with the measured quantity through the sensor's sensing element. The conversion element then transforms the non-electrical quantity into an electrical parameter. The measurement circuit processes the electrical parameter input from the conversion element and converts it into measurable electrical quantities such as voltage, current, or frequency for display, recording, control, and processing. The working principle of the automotive outside temperature sensor is to detect the atmospheric temperature, transmit the detected temperature to the engine's ECU, and convert it into an electrical signal to determine the temperature setting of the automatic air conditioning, adjusting it to the most suitable temperature without manual intervention. Consequences of a faulty outside temperature sensor: In most vehicles, when an outside temperature sensor fails, the temperature display on the dashboard will be abnormal. This can lead to a distorted air-fuel ratio in the engine, causing the air conditioning system to malfunction or stop working altogether.

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Does opening the car door after the engine is turned off consume battery power?

Opening the car door after the engine is turned off does consume battery power. If no other electrical devices are in use and only the door control light on the dashboard remains lit, the power consumption is minimal. However, if the door is equipped with an interior light or the cabin reading light is set to activate with the door, the power consumption will be significantly higher. The factors affecting the battery discharge rate are as follows: Natural lifespan of the battery: Currently, lead-acid batteries used in cars experience performance degradation. Under normal circumstances, the battery lifespan is 3-4 years. When the battery nears the end of its lifespan, it will discharge very quickly, and this condition cannot be repaired—only replacement with a new battery is possible. Electrical leakage in the vehicle's wiring: If there is an electrical leakage in the vehicle's wiring, it will cause the battery to discharge very quickly. Even replacing the battery will not help. A full inspection of the vehicle's wiring must be conducted to identify the cause of the leakage. Neglect of regular maintenance: Before turning off the engine, ensure all electrical devices are switched off. Avoid leaving the vehicle parked for extended periods. Start the car at least once a week to maintain a healthy battery voltage. Regularly clean the car battery. Over time, the battery may accumulate dust, white powder, and stains. To avoid affecting its lifespan, periodically clean and wipe the battery with a damp cloth to keep its exterior as clean as possible.

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What Are the Yellow Spots on the Car?

They are rust spots. Yellow spots on the car's paint surface are generally caused by rusting iron particles adhering to the surface. When the car's surface generates static electricity, it attracts iron particles from the air onto the paint. If the car is exposed to rain, these iron particles on the paint surface will rust. Methods to remove rust from the car are as follows: Use a cloth soaked with bathroom cleaner and wipe the rusted area back and forth. After cleaning, make sure to wash your hands thoroughly. Use machine oil. Choose a transparent, non-sticky machine oil, apply it to a cloth, and gently wipe the rusted area. After removing the rust, use a soft, dry cloth to wipe off any residual oil on the car body. Do not rinse with water. Use acidic substances like dilute hydrochloric acid or oxalic acid for wiping. Be careful not to use too much to avoid secondary corrosion. After removing the rust, maintain the surface by waxing or polishing. Use a car paint iron particle remover, which quickly dissolves iron particles and oxidation layers on the paint. Spray the remover on the rust, and the iron particles in the paint will dissolve. After spraying, the iron particles will turn into a purple liquid and flow off. Rinse with clean water afterward. Precautions for car paint maintenance include the following: Before, during, and after using the car, promptly remove dust from the body to minimize the adsorption of dust due to static electricity. Rinse the car promptly after rain. Raindrops on the car will gradually shrink, increasing the concentration of acidic substances in the rainwater. If not rinsed with water quickly, the rain residue will damage the paint over time. When washing the car, wait for the engine to cool down. Avoid washing the car under direct sunlight or high temperatures to prevent cleaning agents from drying and leaving marks. When washing the car yourself, use specialized detergents and neutral water. Avoid using highly alkaline detergents like laundry powder, soap, or dishwashing liquid, as they can strip the paint of its protective oils and accelerate aging. Use clean, soft cloths or sponges to wipe the car to avoid mixing in metal shavings or sand particles. Do not use dry cloths, towels, or sponges, as they may leave scratches. Wipe in the direction of water flow, gently from top to bottom, avoiding circular or horizontal motions. For particularly strong corrosive stains, remove them promptly. Use specialized cleaning agents for such stains and avoid scraping with blades or using gasoline, as these can damage the paint.

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Can I Keep a Car at Home Without Annual Inspection If It's Not Driven?

It is possible to keep a car at home without an annual inspection if it's not driven, but it is not recommended. Failing to undergo the annual inspection means the vehicle can no longer be driven on the road, and keeping it at home is equivalent to scrapping it. It is advisable to go through the formal scrapping process at an authorized institution. On one hand, you can receive a scrapping subsidy, and on the other hand, it will not affect future purchases of new vehicles or license plate registration. Regulations on vehicle annual inspection: Every vehicle that has obtained an official license plate and registration certificate must undergo an annual inspection. Vehicles that fail the inspection must be repaired within a specified period. If they still fail after the deadline, the vehicle management office will confiscate the license plate and registration, prohibiting further driving. Vehicles that do not participate in the annual inspection without reason or fail the inspection are not allowed to be driven on the road or transferred to another jurisdiction. If a motor vehicle driven on the road has not undergone the required safety technical inspection, the traffic police department will impound the vehicle, impose a fine on the driver, and deduct 3 points from their license. Methods for scrapping a vehicle: Prepare the "Motor Vehicle Registration Form," "Application for Motor Vehicle Suspension, Resumption/Cancellation of Registration," "Motor Vehicle Registration Certificate" (if not already obtained), and the motor vehicle driving license, then submit an application to the public security authorities to complete the vehicle scrapping procedures. On the day of acceptance, the public security authorities will issue the "Motor Vehicle Scrapping Certificate" to the owner of the scrapped vehicle and instruct them to sell the scrapped vehicle to a designated recycling company.

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At what tire pressure should a car no longer be driven?

Where is the Roof Drain Hole Located?

Which is more fuel-efficient, the Geely Boyue or the Changan CS55?

Where is the outside temperature sensor located?

Does opening the car door after the engine is turned off consume battery power?

What Are the Yellow Spots on the Car?

Can I Keep a Car at Home Without Annual Inspection If It's Not Driven?

Will points be deducted for the car body touching the line during parallel parking?

Can Xenon Lights Burn?

Can I Report to the Police If My Car Is Scratched While Parked on the Roadside?

Is there a speed requirement for automatic transmission vehicles in Subject 3 of the driving test?