Should Original Steel Wheels Be Replaced with Aluminum Alloy?

How to Detect Where the Car Air Conditioning is Leaking Refrigerant?

When a car's air conditioning system is leaking refrigerant, it is necessary to locate the leak for repair or replacement. Here are methods to detect refrigerant leaks in the air conditioning system: 1. Visual Inspection and Touch Method. Touch the aluminum pipes of the air conditioning system with your hands and observe if there are obvious oil stains on the surface. If oil stains are present, it indicates a possible refrigerant leak at that location. 2. Soap Bubble Test. Generate a large amount of soapy water foam and apply it to the air conditioning pipes. Check if gas bubbles emerge from the pipes. If the air conditioning system has a refrigerant leak, a large number of bubbles will form, identifying the leak location. 3. Use Specialized Tools, an Air Conditioning Leak Detector, for Measurement. If the leak detector emits a beeping sound at a certain location, that is where the refrigerant is leaking.

2

4

Share

When was the 2020 Golf launched?

2020 Golf was launched on November 7, 2020. Introduction to the 2020 Golf: 1. Exterior: The appearance of the 2020 Golf remains almost unchanged compared to the previous model, but this time it comes standard with 17-inch wheels. Additionally, the 2020 Golf still offers R-Line and GTI versions, both of which feature distinct front and rear bumpers and wheel designs compared to the standard version. 2. Features: The 2020 Golf adds a roof-mounted USB port, making it easier for users to install dash cams without complicated wiring. Moreover, features like rearview camera, full-touch infotainment system with navigation, and power-folding exterior mirrors are standard across all trims. 3. Powertrain: The 2020 Golf has discontinued the 1.6L engine and now only comes with 1.2T and 1.4T engines. This change may be related to meeting the China VI emission standards. The transmission system is paired with a 7-speed dual-clutch gearbox.

9

3

Share

Where is the air conditioning filter located in the Chevrolet Epica?

The air conditioning filter in the Chevrolet Epica is located under the black cover in the engine compartment directly in front of the front passenger seat. Below is some relevant information about the air conditioning filter: 1. Functions: (1) It ensures that the filter fits tightly against the housing, preventing unfiltered air from entering the cabin. (2) It separates solid impurities such as dust, pollen, and abrasive particles from the air. (3) It absorbs moisture, soot, ozone, odors, carbon oxides, SO2, CO2, etc., from the air, with strong and long-lasting moisture absorption. 2. Maintenance: If the filter is dirty, clean it by blowing compressed air from the reverse side. Hold the air gun about 5 cm away from the filter and blow at a pressure of 500 kPa for approximately 2 minutes. The air conditioning filter tends to accumulate a lot of dust; simply blow away the loose dust with compressed air. Never wash it with water, as this can easily damage the filter.

19

2

Share

Is the Avalon Engine Imported?

The engine of Toyota's Avalon is produced by Tianjin FAW Toyota Engine Co., Ltd., which is a domestically manufactured engine. The 2.0L version of Toyota's Avalon has an engine model M20A, with a maximum power of 131kw, maximum horsepower of 178hp, and peak torque of 210Nm. The 2.5L version has an engine model A25A, with a maximum power of 154kw, maximum horsepower of 209hp, and peak torque of 250Nm. For daily maintenance of Toyota's Avalon engine, the following methods can be used: Use lubricating oil of appropriate quality grade. For gasoline engines, SD--SF grade gasoline engine oil should be selected based on the additional devices of the intake and exhaust system and usage conditions; for diesel engines, CB--CD grade diesel engine oil should be selected according to mechanical load, with the selection standard not lower than the manufacturer's requirements. Regularly change the engine oil and filter. The quality of any grade of lubricating oil will change during use. After a certain mileage, the performance deteriorates, which can cause various problems for the engine. To avoid malfunctions, change the oil regularly according to usage conditions and maintain an appropriate oil level. When engine oil passes through the fine holes of the filter, solid particles and viscous substances in the oil accumulate in the filter. If the filter is clogged and the oil cannot pass through the filter element, it may rupture the filter element or open the safety valve, allowing oil to bypass through the bypass valve and carry contaminants back to the lubrication areas, accelerating engine wear and increasing internal pollution. Regularly clean the crankcase. During engine operation, high-pressure unburned gases, acids, moisture, sulfur, and nitrogen oxides from the combustion chamber enter the crankcase through the gap between the piston rings and cylinder walls, mixing with metal particles from component wear to form sludge. A small amount remains suspended in the oil, while a large amount precipitates, clogging filters and oil passages, making engine lubrication difficult and causing wear. Regularly use radiator cleaner to clean the radiator. Removing rust and scale not only ensures the engine operates normally but also extends the overall lifespan of the radiator and engine.

3

4

Share

Should the Teana use 0w20 or 5w30?

Naturally aspirated models can use 0w20 engine oil, while turbocharged models should use 5w30 engine oil. More relevant information is as follows: 1. Teana Introduction: The Teana is a mid-size sedan under the Nissan brand, with dimensions of 4901mm in length, 1850mm in width, and 1450mm in height, and a wheelbase of 2825mm. This car is equipped with two engines: a 2.0-liter naturally aspirated engine and a 2.0-liter turbocharged engine. 2. Engine Introduction: The 2.0-liter naturally aspirated engine delivers 156 horsepower and a maximum torque of 197 Nm, reaching its peak power at 6000 rpm and maximum torque at 4400 rpm. This engine features direct fuel injection technology and uses an aluminum alloy cylinder head and block. The 2.0-liter turbocharged engine produces 243 horsepower and a maximum torque of 371 Nm, achieving peak power at 5400 rpm and maximum torque at 4400 rpm. 3. Vehicle Configuration: This engine is equipped with hybrid injection technology and also uses an aluminum alloy cylinder head and block. Both engines are paired with a CVT transmission, which enhances gear-shifting smoothness and fuel economy. For the chassis design, the front suspension employs a MacPherson independent suspension, while the rear suspension uses a multi-link independent suspension. The multi-link suspension is a structurally complex independent suspension system.

15

2

Share

What does ETC on highways refer to?

Highway ETC (Electronic Toll Collection) translates to electronic toll collection, which is a non-stop toll collection system. On highways, there will be one or more ETC lanes. The ETC charging method: Through dedicated short-range microwave communication between the vehicle-mounted RFID tag installed on the vehicle's windshield and the microwave antenna on the ETC lane at the toll station, using software networking technology to conduct background settlement processing with the bank, thereby achieving the purpose of vehicles passing through bridge and tunnel toll stations without stopping to pay tolls. Banks install this type of ETC express card with a post-payment system. ETC application conditions are as follows: Provide the original and photocopy of the vehicle owner's valid ID card and vehicle registration certificate. The photocopy of the driver's license must include the page with the most recent annual inspection seal; Postal credit card application form. This credit card is used to bind the ETC card. After obtaining the credit card, swipe it twice and use the POS receipt to collect and install the ETC onboard device for free at designated postal outlets without any additional charges; Must be between 18 and 60 years old; Must own a personal vehicle. Below are precautions for installing ETC: Do not obstruct the view. It is best to install it behind the rearview mirror: Many car models have a large rearward tilt angle on the windshield, which reduces the driver's field of vision. If this is not considered during ETC installation, it will increase the driver's blind spots. Install it behind the rearview mirror on the right side to avoid obstructing the view. Do not interfere with charging: The ETC electronic tag consumes power, but generally does not require charging or battery replacement because it has a solar panel on the back that can self-charge. Therefore, during installation, avoid the blackened areas on the windshield and do not place it where the solar panel might be obstructed. Once installed, do not remove it arbitrarily: The button in the middle of the adhesive is an anti-removal lever connected to a switch. After the electronic tag is installed, the windshield will press the anti-removal lever in. If removed arbitrarily, the lever will pop out and trigger the switch, locking the electronic tag and rendering it unusable. You will then need to visit an ETC service point to unlock it. This is designed to prevent multiple vehicles from sharing one device. Precautions for using ETC: The ETC transaction sensing range is 8 meters. To prevent the ETC device of the vehicle in front from malfunctioning, maintain a distance of more than 10 meters from the vehicle in front to avoid automatic sensing and paying for the vehicle ahead. The recognition speed for ETC lane passage is 20 kilometers per hour. If the vehicle speed is too fast, the system may fail to read the vehicle device information, resulting in failed deductions. When using a debit card bound to ETC, insufficient balance will also cause deduction failures.

3

1

Share

Should Original Steel Wheels Be Replaced with Aluminum Alloy?

How to Detect Where the Car Air Conditioning is Leaking Refrigerant?

When was the 2020 Golf launched?

Where is the air conditioning filter located in the Chevrolet Epica?

Is the Avalon Engine Imported?

Should the Teana use 0w20 or 5w30?

What does ETC on highways refer to?

Does the Model 3 Panoramic Sunroof Get Hot?

What is the difference between China III and China IV emission standards for motorcycles?

What Causes the Buzzing Sound When Turning on the Air Conditioning in a Mercedes?

Differences between M3 and M5?