What Causes Engine Shaking?

What is the method for adding refrigerant oil to a car's air conditioning system?

Generally, there are two methods for adding refrigerant oil to the air conditioning system: the direct filling method and the vacuum suction method. The details are as follows: 1. Direct filling method: The direct filling method simply involves pouring the refrigerant oil directly into the compressor through the plug opening, which is very convenient. 2. Vacuum suction method: (1) Evacuation: Use a specialized vacuum tool to remove the air from inside the air conditioning system. (2) Negative pressure suction: After the air inside the air conditioning system is removed, use negative pressure to draw the refrigerant oil into the compressor through a yellow hose. (3) Adding refrigerant: Once the refrigerant oil is completely drawn into the compressor, the addition of refrigerant oil is complete, and then the refrigerant can be added directly.

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Where to Obtain the Vehicle Inspection Sticker?

Inspection stickers can be applied for at the Vehicle Management Offices of the Municipal or County Public Security Traffic Management Bureaus. Some post offices and banks also offer agency services. Below are the procedures and considerations for applying for a vehicle inspection sticker: 1. For registered motor vehicles, apply for the inspection sticker according to the following periods. (1) Passenger vehicles for commercial use must be inspected once a year within the first 5 years; after 5 years or more, every 6 months. (2) Trucks and large or medium-sized non-commercial passenger vehicles must be inspected once a year within the first 10 years; after 10 years or more, every 6 months. (3) Motorcycles must be inspected once every 2 years within the first 4 years; after 4 years or more, once a year. (4) Special school buses must be inspected every 6 months from the date of registration. (5) Non-special school buses must be inspected every 6 months after obtaining the school bus license plate. (6) Other motor vehicles must be inspected once a year. (7) Small and micro non-commercial passenger vehicles that have been registered for 6 years or more must be inspected once a year; after 15 years or more, every 6 months. 2. Application Conditions (1) The motor vehicle must have reached its inspection validity period. (2) Provide the proof documents required by laws, regulations, and departmental rules. (3) All road traffic safety violations and accidents involving the motor vehicle must be resolved.

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How to Check Mileage on a Mercedes-Benz?

Mercedes-Benz vehicles display the total mileage on the dashboard screen, which can be accessed by using the multifunction buttons on the steering wheel. The method involves first returning to the home page, then selecting the 'Trip' option, scrolling up or down to view instantaneous fuel consumption, average fuel consumption, total mileage, and other details. Navigate to the total mileage to see the reading. Below is some relevant information about car odometers: 1. The car odometer indicates the vehicle's speed in km/h (kilometers per hour). It consists of two meters: a speedometer and an odometer. These are typically located directly in front of the driver's position. Methods to verify mileage include assessing wear and tear or checking the vehicle's maintenance records at a 4S dealership. 2. The odometer records both total mileage and trip mileage (single journey). The trip mileage can be manually reset in the 'Trip' section of the onboard computer. Trip mileage, also known as 'trip distance,' is used to measure the distance between the starting point and destination. It can also help estimate fuel consumption. Total mileage records the cumulative distance the vehicle has traveled since it was manufactured.

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When Should Tires Be Replaced?

Tire replacement should be based on the following five criteria: 1. Check if the wear has reached the marked limit. During the production process, tires are designed with wear indicators. One is located in the tread grooves, spaced at intervals; the other is on the sidewall edge, marked by a small triangle. When the wear reaches these indicators, the tire must be replaced. 2. Replace immediately if the sidewall shows bulges. From the structural diagram, it's clear that tires are not just rubber; their inner layers are more complex than an Oreo. The weakest part is the sidewall. If a bulge appears, it indicates that the internal steel wires have broken or deformed. 3. Nails in the sidewall. The probability of a nail piercing the sidewall is very low unless done intentionally. Whether replacement is needed depends on the nail's location relative to the wear indicator (refer to Figure 1 for the sidewall wear indicator). If the nail is above the wear indicator, a patch can be applied. If it's below, tire replacement is recommended. 4. More than three patches on the tread. Occasional nails can be patched without issues—even three patches might be manageable. However, if there are more than three patches, especially if two are close together, the risk of a blowout increases during high-speed driving due to elevated tire temperatures. 5. Tread aging. Aging treads show fine cracks, which result from prolonged storage or excessive sun exposure. If cracks appear on the tread, replace the tire as soon as possible, and avoid high-speed driving.

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Which brand of transmission oil can be used for the Atenza?

The original transmission oil for the Atenza is Aisin brand. The relevant introduction to transmission oil is as follows: Function of transmission oil: Transmission oil is a lubricant used to keep the car's gear system clean, providing lubrication to extend the life of the transmission components. It also offers effective lubrication at low temperatures and reduces oil loss under harsh operating conditions. Types of transmission oil: It is divided into automatic transmission fluid (ATF) and gear oil. Automatic transmission fluid is specifically designed for automatic transmissions. Manual transmission oil, commonly referred to as gear oil, is mainly composed of petroleum-based lubricating oil or synthetic lubricating oil, blended with extreme pressure anti-wear agents and oiliness agents to form an important lubricant.

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What Are the Different Engine Arrangements?

Engine arrangements include inline, V-shaped, W-shaped, horizontally opposed, and radial. Here is the relevant information: 1. The most commonly used is the inline transverse arrangement, where four or more cylinders are aligned in a row on the crankshaft. The advantage is its simple structure, making it suitable for small cars. 2. The V-type arrangement divides the cylinders into two groups, installed alternately on the same crankshaft at a certain angle (usually 90 or 70 degrees). The advantages are compact size and reduced vibration. 3. The W-type is essentially two V-type engines combined. It is extremely complex in structure but more compact and efficient, often found in high-end luxury cars like Audi and Volkswagen. 4. The horizontally opposed arrangement also divides the cylinders into two groups but installs them opposite each other at 180 degrees on the same crankshaft. The advantages include lowering the engine bay height and effectively reducing vibration, commonly seen in sports cars like Subaru and Porsche. 5. The radial arrangement features cylinders arranged in a star shape around the crankshaft, making it ideal for streamlined aircraft bodies, often found in older propeller planes.

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What Causes Engine Shaking?

What is the method for adding refrigerant oil to a car's air conditioning system?

Where to Obtain the Vehicle Inspection Sticker?

How to Check Mileage on a Mercedes-Benz?

When Should Tires Be Replaced?

Which brand of transmission oil can be used for the Atenza?

What Are the Different Engine Arrangements?

Should Regular Private Cars Use 92 or 95 Octane Gasoline?

Why is the car dashboard not lighting up?

How to Reset the Maintenance Light on a BMW 3 Series?

What is the range of BYD electric vehicles?