What does the airbag warning light in a car indicate?

Why does the oxygen sensor fault code keep reappearing after being cleared?

The reasons why the oxygen sensor fault code keeps reappearing after being cleared are as follows: If the fuel from the gas station is substandard, containing excessive lead and silicon compounds, it can cause poisoning and damage to the oxygen sensor and even the catalytic converter. When the oxygen sensor first shows a fault code, it is only surface poisoning and still relatively mild. If high-quality fuel is used at this point, the toxic substances on the surface can be eliminated, restoring the oxygen sensor to normal operation. Extension: The function of the oxygen sensor is to detect the oxygen content in the exhaust. If there is too much oxygen, it indicates that the air intake is excessive while the fuel injection is insufficient, leaving unused oxygen, which prompts the system to increase fuel injection. If the oxygen content is too low, it means the fuel injection is excessive, and there isn't enough oxygen, leading the system to reduce fuel injection. Therefore, the oxygen sensor is a crucial component for fuel trim, constantly fine-tuning the air-fuel ratio to the optimal state.

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How Often Should a Vehicle Be Serviced?

It is recommended to service your vehicle every three months or every 5,000 kilometers, whichever comes first. This is not a fixed rule, as vehicle owners should analyze and adjust based on their car's actual condition. Below are the relevant details about vehicle maintenance: 1. Routine Maintenance: Generally refers to the standard service performed every 5,000KM (some models require it every 7,500KM), which primarily includes changing the engine oil and oil filter, inspecting the fuel filter (many modern vehicles no longer have one), and checking the air filter—replacing it if excessively dirty. Additionally, it is essential to inspect the brake discs and pads for replacement needs, check brake fluid levels, and assess tire conditions to ensure safety. 2. Periodic Maintenance: Typically conducted every 3 years or every 40,000KM. Beyond routine tasks, this involves cleaning the fuel injectors, throttle body, and the vehicle's intake system. It also includes replacing transmission fluid, front and rear axle lubricants, coolant, and brake fluid. Tire wear should be inspected, with replacements made if necessary. 3. Major Service: Usually performed after 100,000KM, involving a comprehensive inspection of the vehicle and replacement of parts as needed. At this stage, wiring (electrical circuits) and drivetrain components should be thoroughly checked.

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What does section speed control mean? What are the penalties for speeding?

Section speed control explanation: Two adjacent monitoring points are set up on the same road section. The average speed of a vehicle on that section is calculated based on the time it takes for the vehicle to pass between these two monitoring points. The vehicle is then judged to be speeding or violating traffic rules according to the speed limit standard set for that section. Below are the speeding fine and penalty point standards: 1. Exceeding the speed limit by less than 10%: no fine, but 3 penalty points; 2. Exceeding the speed limit by more than 10% but less than 20%: a fine and 3 penalty points; 3. Exceeding the speed limit by more than 20% but less than 50%: a fine and 3 penalty points; 4. Exceeding the speed limit by more than 50% but less than 70%: a fine and 6 penalty points, with possible driver's license suspension; 5. Exceeding the speed limit by more than 70%: a fine and 6 penalty points, with possible driver's license suspension.

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Why is the steering wheel so heavy?

The reasons for a heavy steering wheel are as follows: 1. Insufficient power steering fluid: Power steering fluid is a medium oil used in the car's power steering pump, which transmits steering force and provides cushioning. The power steering fluid needs to be replaced regularly, and any leaks should be checked. When the power steering fluid is insufficient, the steering will become heavy. 2. Low tire pressure: Low tire pressure increases the contact area between the tire and the road surface, leading to greater friction and difficulty in steering, resulting in a heavy steering wheel, which is not conducive to driving safety. In this case, the tire pressure should be replenished promptly. 3. Overly tight bearing fit: For the rolling bearings connected to the steering system, if they are too tightly fitted with the sliding bearings, it can prevent proper lubrication of the bearings, leading to sticking issues and causing the steering wheel to become heavy. In this case, the mechanical parts and the power steering system should be inspected, or checked for oil leaks or damaged intake seal components. 4. Power steering system issues: The steering wheel and the power steering system are closely related. Therefore, when the steering wheel becomes very heavy, it may also be due to poor electrical contact or other issues within the power steering system. In this case, it should be inspected and repaired at a 4S shop.

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Is It Normal to Burn One Liter of Oil Every 5,000 Kilometers?

The normal oil consumption for every 5,000 kilometers depends on the vehicle model. For Japanese models, the oil consumption is around 1L per 5,000 kilometers, while for German models (with smaller engine clearances), it is approximately 1.5L. Factors affecting oil consumption: Incorrect driving habits have the greatest impact on oil consumption. During driving, especially in heavy traffic, at red lights, or when changing lanes, sudden acceleration and hard braking are the most common issues. Experts have conducted acceleration fuel consumption tests, finding that fuel consumption increases by 2 to 3 times compared to driving at a constant speed when vehicles accelerate into test sections. Tips to reduce oil consumption: If you want to save fuel, avoid frequent lane changes, overtaking, and merging, as these not only increase fuel consumption but also raise the probability of accidents. Each gear shift also consumes additional fuel. Even in traffic jams, try to queue in order; cutting in line will only result in more fuel consumption.

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What is the fastest method to refurbish plastic headlights?

Remove dust and dirt from the surface. Daily car washing may leave polish or wax layers, so the first step is to wipe these clean. Go to the supermarket and buy some blue, low-viscosity, easily peelable tape to cover the edges of the headlights. If some areas appear hazy or foggy, you can also cover those sections. Soak a piece of 1000-grit sandpaper in cold water for 10 minutes, then evenly wipe the headlight housing. Sand in one direction back and forth to keep the surface moist. After wiping away the sanding powder, apply an appropriate amount of polishing compound/paste using a fiber cloth or microfiber towel onto the plastic housing. Some car headlights come with a built-in UV protective coating, which may be damaged during sanding. If you don’t want the headlights to deteriorate again, you can also apply a new protective layer yourself.

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What does the airbag warning light in a car indicate?

Why does the oxygen sensor fault code keep reappearing after being cleared?

How Often Should a Vehicle Be Serviced?

What does section speed control mean? What are the penalties for speeding?

Why is the steering wheel so heavy?

Is It Normal to Burn One Liter of Oil Every 5,000 Kilometers?

What is the fastest method to refurbish plastic headlights?

What is the 0-100 km/h acceleration time of the WEY VV7?

What Causes Insufficient Power When the Car Air Conditioner is On?

What are the hidden functions of the Geely Binyue key?

What Causes Shaking During Rapid Acceleration?