Does the Audi A8 require matching when replacing the battery without power interruption?

What Causes Steering Wheel Vibration During Braking?

Reasons for steering wheel vibration during braking: 1. Excessive clearance between brake discs and brake pads, or uneven brake disc surfaces. When braking at high speeds, the brake pedal may exhibit slight pulsation. Resurfacing the brake discs can restore normal operation; 2. Surface imbalance or deformation. The braking system has strict requirements for surface flatness. Some brake discs may have dirt, debris, or heat-induced deformation; 3. Other issues. If the steering wheel vibrates slightly even during low-speed driving, it's likely due to wheel alignment or steering system problems. In such cases, it's best to have the vehicle inspected and repaired at a 4S shop or repair facility.

7

1

Share

What is the tire size of the Geely Boyue?

Geely Boyue comes with two tire specifications: 225/65R17 and 225/60R18. Car tires are one of the essential components of a vehicle, directly contacting the road surface and working in conjunction with the car's suspension to mitigate impacts during driving, ensuring excellent ride comfort and smooth driving. Here are some relevant details: 1. The Geely Boyue is a compact SUV under Geely Auto, with dimensions of 4519mm in length, 1831mm in width, and 1694mm in height, and a wheelbase of 2670mm. 2. In terms of power, the Geely Boyue is equipped with a 1.8T inline four-cylinder engine, delivering a maximum power of 184 horsepower and a peak torque of 300 Nm, paired with a 7-speed dual-clutch transmission.

14

5

Share

Where is the Vehicle Identification Number?

Location of the Vehicle Identification Number: 1. On the front partition of the engine compartment; 2. On the left side of the vehicle dashboard, visible through the windshield; 3. On the vehicle nameplate on the central pillar; 4. On the vehicle's driving license; 5. In the information column of the vehicle's registration certificate. The Vehicle Identification Number, abbreviated as VIN, consists of 17 alphanumeric characters and is a unique code assigned to a vehicle. It contains information about the country, manufacturer, engine, engine model, vehicle type, body style, code, and production year. Correctly interpreting the VIN is crucial for owners to accurately identify the vehicle model and perform proper diagnosis and maintenance.

8

0

Share

How Does the Heating Function of a Car Air Conditioner Work?

The working principle of a car air conditioner's heating function is that during heating, the high-temperature coolant from the engine flows through the heater core. At the same time, the air blown by the blower also passes through the heater core, allowing the car's air vents to blow warm air. There are two types of car heating functions. The first utilizes engine coolant, which is the method employed by most vehicles today. The second primarily relies on the consumption of car fuel energy, commonly found in mid-to-high-end vehicles. The heating function of a car air conditioner is not generated by the air conditioner itself but is derived from the heat energy produced by the engine coolant. During engine operation, a significant amount of heat energy is generated and absorbed by the coolant to cool the engine. The coolant acts as a heat carrier, transferring heat through the engine radiator. With the help of a fan, air convection is achieved, releasing heat energy into the car's interior space to provide warmth. After the coolant dissipates its heat energy and cools down, it absorbs the engine's heat energy again, forming a cycle to achieve the heating purpose. The car air conditioner is a relatively large system in a vehicle. In addition to the compressor, it includes components such as the evaporator, expansion valve, receiver-drier, and condenser. The compressor plays a crucial role in the entire system by compressing and driving the refrigerant. Driven by the engine, it continuously draws in the low-temperature, low-pressure refrigerant vapor generated by the evaporator's heat absorption and vaporization. After compression, it forms high-temperature, high-pressure refrigerant vapor, which is discharged to the condenser, creating high-pressure conditions for the refrigerant to continuously condense and release heat in the condenser. Additionally, the compressor overcomes the circulation resistance of the refrigerant in the refrigeration circuit.

14

4

Share

Can I add purified water to the battery?

If the battery is a water-based battery, purified water can be added. However, if the battery is maintenance-free, purified water must not be added. Electric vehicle batteries use a lean electrolyte design. During daily charging, gas evolution occurs in the battery, causing the water content in the electrolyte to gradually decrease, the sulfuric acid concentration in the electrolyte to increase, and the corrosion rate of the battery plates to accelerate, thereby affecting the battery's lifespan. Check the battery for water shortage approximately every six months. If water shortage is found, replenish distilled water promptly. Distilled water is formed by the condensation of gas and contains fewer impurities. If distilled water is unavailable, consider using purified water, as it contains some substances harmful to the battery.

11

4

Share

Can Windshield Washer Fluid Be Replaced with Mineral Water?

Windshield washer fluid should not be replaced with mineral water. Windshield washer fluid is designed to clean the windshield, provide anti-static properties, prevent fogging, offer lubrication, and resist freezing. Using mineral water would dilute the washer fluid, potentially causing various adverse effects on the vehicle and even shortening the lifespan of the wiper blades. Mineral water lacks lubricating properties, and prolonged use can lead to severe scratching of the windshield, increased friction on the wiper blades, and operational issues such as skipping and noise during use. Windshield washer fluid, commonly referred to as windshield cleaning solution, is a consumable automotive product. High-quality windshield washer fluid is primarily composed of water, alcohol, ethylene glycol, corrosion inhibitors, and various surfactants.

16

5

Share

Does the Audi A8 require matching when replacing the battery without power interruption?

What Causes Steering Wheel Vibration During Braking?

What is the tire size of the Geely Boyue?

Where is the Vehicle Identification Number?

How Does the Heating Function of a Car Air Conditioner Work?

Can I add purified water to the battery?

Can Windshield Washer Fluid Be Replaced with Mineral Water?

Is Valve Noise Caused by Thin or Thick Engine Oil?

What is the Difference Between Domestic Cars and Joint Venture Cars?

How Long Does the First Maintenance Usually Take?

Why does the engine keep showing a yellow warning light?