What are the general items for car maintenance?

How to Turn on the Cold Air in an Automatic Transmission Car?

To turn on the cold air in an automatic transmission car, simply press the A/C button and adjust the temperature dial to the blue zone. Below are some related details about the cold air function: 1. Button Functions: AC is the air conditioning switch, MAX stands for maximum, and the internal circulation can be manually switched on or off. To activate the cold air, just lower the temperature setting. 2. Conditions for Automatic Internal Circulation: By default, when the air conditioning is set to maximum (or when there is a significant temperature difference between the inside and outside of the car), the internal circulation will turn on automatically. In other cases, it generally does not activate automatically. 3. Alternating Between Internal and External Circulation: In external circulation mode, the air conditioning draws air from outside the car, while internal circulation reuses the air inside the car. Prolonged use of internal circulation can reduce air quality inside the car, potentially causing dizziness or discomfort. It is advisable to switch between internal and external circulation every few minutes to allow fresh air in and improve air quality.

4

2

Share

Is a Flooded Car with No Water in the Engine Severely Affected?

Whether a car that stalled in water and was repaired is severely affected mainly depends on the extent of damage caused by water entering the engine. If water did not enter the engine cylinders, simply replacing and repairing the affected components will suffice, with no lasting impact. However, if the engine is started again after being submerged, water may enter the combustion chamber, potentially causing the engine connecting rods to bend. During repairs, the extent of water ingress should be assessed to determine whether components like the engine connecting rods need replacement. Below are relevant details: 1. Severity: The severity of a flooded car depends on the water level and whether the vehicle was started while submerged. 2. Below the Seats: If water only reached below the seats, which is below the vehicle's air intake, as well as the fuse box and dashboard, thorough cleaning will minimize the impact. 3. Cleaning: During cleaning, it is necessary to replace transmission fluid, engine oil, and brake fluid, and to clean and maintain the braking system, exhaust pipe, and catalytic converter to further reduce the long-term effects of flooding on the vehicle.

10

3

Share

What damage does turning off the car without shifting to P gear cause?

Turning off the car without shifting to P gear can affect the lifespan of the transmission. Here are the relevant details: 1. Turning off the car in P gear: After turning off the engine, vehicles usually move slightly back and forth due to uneven road surfaces. The P gear transmission has a locking mechanism that engages with the transmission gears. This slight movement can cause impact on the transmission gears, damaging them and reducing the transmission's lifespan. Therefore, you should first come to a complete stop, then shift to P gear before turning off the engine. 2. Car parking precautions: Maintain a greater distance from the vehicle in poor lighting conditions. If you are directing someone to park at night or in low-light conditions, you should keep an appropriate distance from the vehicle and remind the driver to slow down to ensure the parking process is absolutely safe. There are many blind spots in the driver's field of vision when seated in the car, and these blind spots are particularly critical when parking in tight spaces, requiring the assistance of a guide to observe. Therefore, the guide may sometimes unavoidably stand in the driver's blind spot. In such cases, it is advisable to intentionally stay 2-3 meters away from the vehicle. This distance does not hinder communication but ensures the guide's safety.

6

5

Share

Should the Battery Be Replaced After Jump-Starting a Car?

The timing of battery replacement is not specifically related to the number of jump-starts. Generally, the lifespan of a car battery is 2-3 years. After reaching a certain period of use, it needs to be replaced. If used for an extended period, the battery may fail to hold a charge or become unable to recharge. Additional Information: Car batteries can be categorized by type: 1. Maintenance-Free Batteries: The batteries commonly used in household cars are typically 12V lead-acid batteries, which consist of 6 cells connected in series, with each cell having a voltage between 1.7-2.1 volts. It's important to note that the usage cycle of a car battery is also influenced by driving habits. Poor driving habits can shorten the battery's lifespan, so developing good car usage habits is crucial. 2. Conventional Batteries: During regular use, always turn off electrical devices before shutting down the engine to prevent excessive battery drain, which can lead to a discharged battery over time and shorten its lifespan. Under normal driving conditions and with regular maintenance, a car battery can last for more than 3 years.

1

2

Share

What should be paid attention to when driving on ice and snow roads?

When driving on ice and snow roads, it is important to make judgments in advance and reserve braking distance. The reasons for reserving braking distance and the methods for starting a car in extremely cold weather are as follows: Reasons for reserving braking distance: It should be noted that the braking distance of the vehicle will be extended. There is a certain difference between ice and snow roads and normal roads, which will reduce the friction of the vehicle tires, and the adhesion will also become smaller. When driving on ice and snow roads, it is necessary to make judgments in advance and reserve braking distance. Methods for starting a car in extremely cold weather: Press the clutch in neutral, do not press the accelerator, and start the engine momentarily without igniting it. Each interval should be more than 10 seconds, and at least 3 times. The purpose is to start the lubrication system. After the engine is started, still press the clutch in neutral and let the engine idle to warm up. After 1 minute, release the clutch. If the engine does not stay on, press the clutch for a while longer. Until the engine stays on, release the clutch and continue to let the engine idle to warm up for 1-2 minutes.

5

1

Share

What is the actual fuel consumption of the RAV4 2.0?

Toyota RAV4 2.0 model has an actual fuel consumption of around 8L. There are many factors that affect a car's fuel consumption, and different driving habits can lead to variations in fuel consumption. The Toyota RAV4 is positioned as a compact SUV. With the continuous development of automotive production technology, this car has ushered in its fifth-generation model. Additional information: Exterior: In terms of appearance, the new RAV4 draws design elements from the Toyota FT-AC concept car, featuring a more refined overall design. Compared to the previous generation, the new model has more angular lines. From the side view, the car's waistline adopts an upward-sloping design that extends from the front fender to the rear, visually elongating the car's body and further highlighting its sporty character. Powertrain: In terms of power, the RAV4 is equipped with two powertrain versions: a 2.0L naturally aspirated engine and a 2.5L hybrid. The fuel version features a 2.0L naturally aspirated engine with a maximum power of 171 horsepower and a maximum torque of 209 Nm. The transmission system is paired with a CVT continuously variable transmission, while the hybrid version is matched with an E-CVT transmission, offering better fuel economy.

19

0

Share

What are the general items for car maintenance?

How to Turn on the Cold Air in an Automatic Transmission Car?

Is a Flooded Car with No Water in the Engine Severely Affected?

What damage does turning off the car without shifting to P gear cause?

Should the Battery Be Replaced After Jump-Starting a Car?

What should be paid attention to when driving on ice and snow roads?

What is the actual fuel consumption of the RAV4 2.0?

What Causes the Buzzing Sound in the Engine Compartment When Braking?

Are Diesel Cars More Fuel-Efficient?

How Deep Can a Car Wade Through Water?

What Material is Good for Spark Plugs?