What are the items included in the second maintenance of a car?

How to Deal with Fog on the Outside of the Windshield?

Methods to deal with fog on the outside of the windshield: 1. Use the car's built-in air conditioning system by turning on the fan and cooling switch. The cold air will disperse the fog on the windshield. Besides using air conditioning for defogging, hot air can also serve the same purpose; 2. Open the windows to allow convection of cold and hot air. Crack the side windows slightly to facilitate air convection inside the car. As the interior temperature gradually matches the outside temperature, the fog will dissipate; 3. Use specialized anti-fog products. Spray evenly on the windows and wipe clean before use to form a transparent protective film on the glass, preventing fog formation. One application can last for half a month; 4. Use dish soap with a dry cloth. Mix dish soap with water at a ratio of 1:6, apply evenly on the car glass with a sponge, and wipe clean with a car towel after drying. This method leaves no watermarks and can effectively prevent fog for up to 20 hours.

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How to Test a Camshaft Position Sensor?

Methods for testing a camshaft position sensor: An oscilloscope can be used because the camshaft position sensor signal is alternating current, and the frequency can be observed. The camshaft position sensor, also known as the camshaft angle sensor, is used to detect the position and angle of the camshaft, thereby determining the top dead center position of the first cylinder piston during compression. Common types of camshaft position sensors include Hall-effect, inductive, and AC-excited types. During startup, the engine ECU uses signals from the camshaft position sensor and the crankshaft position sensor to identify the position and stroke of each cylinder piston, controlling the fuel injection sequence and ignition order for precise fuel injection and ignition control.

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What does the H on a tire mean?

The H on a tire refers to the speed rating of the tire. Each tire has a speed symbol, also known as the speed rating, molded on its sidewall. By referring to this speed symbol, you can determine the maximum speed capability of the tire. Tire specifications are commonly represented by a set of numbers. The first number indicates the tire's section width, and the second number represents the rim diameter, measured in inches. For example, 165/70R14 means a tire width of 165 millimeters, an aspect ratio of 70, and a rim diameter of 14 inches. The letters or symbols in the middle have special meanings: X denotes a high-pressure tire; R and Z indicate radial tires. Letters from A to Z represent the certified speed ratings of the tire, ranging from 4.8 kilometers per hour to 300 kilometers per hour.

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What Causes a Car to Fail to Start After Long Periods of Inactivity?

Reasons why a car fails to start after long periods of inactivity: 1. The battery is depleted and cannot power the starter motor, ignition coil, and fuel pump. In this case, an external battery is needed to jump-start the vehicle. 2. Gasoline has a shelf life of only about one month. After three to four months, the gasoline will have evaporated and deteriorated, making it unusable. Additionally, the engine oil should be replaced because used oil can also deteriorate after five to six months. If the vehicle will be inactive for an extended period, first park it in a safe location, lock it using the remote, and then disconnect the negative terminal of the battery. Note that after disconnecting the battery, the remote locking function will be disabled, and the key will be required to unlock the doors when restarting the vehicle.

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How to Adjust the Ambient Lighting in Mercedes-Benz E-Class?

The method to adjust the ambient lighting in Mercedes-Benz E-Class is: 1. Start the vehicle and power it on; 2. Tap the touchscreen button located at the upper right of the steering wheel; 3. Use the COMAND system on the display screen to locate the vehicle settings and select the lighting configuration; 4. Choose the ambient lighting and select the desired color. Taking the 2021 Mercedes-Benz 260L as an example, it is a mid-to-large-sized 4-door 5-seater sedan with body dimensions of: length 5078mm, width 1860mm, height 1484mm, and a wheelbase of 3079mm. It is equipped with a 1.5T turbocharged engine and a 9-speed automatic transmission, delivering a maximum power of 135 kilowatts and a maximum torque of 280 Newton-meters.

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What is the function of 'rear' in a car?

The 'rear' in a car refers to the rear window defrosting and defogging function. Pressing it can remove fog from the rear windshield. The functional buttons inside a car include: 1. Fuel tank opening button: remotely opens the fuel tank cap from inside the car; 2. ESP switch: turns the vehicle's electronic stability program on or off; 3. Parking sensor button: manually controls the parking sensors when pressed; 4. Central locking button: controls the central locking system of the vehicle; 5. Headlight cleaning button: controls the automatic cleaning function of the headlights; 6. Rear sunshade button: opens or closes the electric rear sunshade inside the car; 7. Tire pressure monitoring: automatically monitors the tire pressure in real-time while the car is in motion.

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What are the items included in the second maintenance of a car?

How to Deal with Fog on the Outside of the Windshield?

How to Test a Camshaft Position Sensor?

What does the H on a tire mean?

What Causes a Car to Fail to Start After Long Periods of Inactivity?

How to Adjust the Ambient Lighting in Mercedes-Benz E-Class?

What is the function of 'rear' in a car?

What is the fuel tank capacity of the Mazda3 Axela?

How often should the coolant be replaced in a new car?

What Are the Reasons for Difficulty in Starting a Car?

How to Remove the Maintenance Reminder on a Polo?