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What Causes the Water Sound in a Car's Air Conditioning?

1 Answers
AmyLee
07/30/25 8:31am
When the car's air conditioning is turned on, a water sound can be heard. This noise is produced as water passes through the heater core. Check if the engine coolant is low. In such cases, you can first add antifreeze, then press the accelerator a couple of times to let the engine rev up slightly, which helps expel air from the system. Below is some related information about car air conditioning: 1. Introduction: The car air conditioning system (air-conditioning-device), commonly referred to as car AC. 2. Function: It is used to regulate and control the temperature, humidity, air cleanliness, and airflow inside the car cabin to an optimal state, providing a comfortable environment for passengers and reducing travel fatigue. It also creates favorable working conditions for the driver and plays a crucial role in ensuring safe driving as a ventilation device.
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What to Do If You Accidentally Fill Up with 92 Octane Gasoline Instead of 95 Octane?

Accidentally filling up with 92 octane gasoline instead of 95 octane has no significant impact. Occasionally mixing different octane levels once or twice is not a problem, but prolonged use of the wrong octane gasoline can cause issues. The appropriate gasoline octane level for a car is determined by the engine's compression ratio, which is detailed in the vehicle's user manual. Gasoline octane ratings refer to the octane number, indicating the fuel's anti-knock properties. Higher octane gasoline has better anti-knock performance. For example, 92 octane gasoline contains 92% isooctane and 8% n-heptane, while 95 octane gasoline contains 95% isooctane and 5% n-heptane. The higher the isooctane content, the better the anti-knock performance.
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Where is the Iveco's cabin air filter located?

Iveco's cabin air filter is located in the engine compartment. There is a black box above the engine where the cabin air filter is housed. If this box is not present, then this particular Iveco model does not have a cabin air filter. While driving, the vehicle draws in external air into the cabin, but this air often contains various impurities (such as pollen, dust, etc.). The purpose of the cabin air filter is to purify the air entering the vehicle. Over time, the cabin air filter can become clogged, so it's important to replace it regularly. The filter can be cleaned and reused—it doesn't necessarily need to be replaced just because it's dirty. However, when cleaning, it's crucial not to use water. Instead, compressed air should be blown from the reverse side to clean the cabin air filter.
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How many kilometers can a full tank of gas last for the Honda Avancier?

Honda Avancier is equipped with Honda's more fuel-efficient and powerful Earth Dreams series engines. The 1.5T model has a fuel consumption of approximately 8L/100km, while the 2.0T model consumes about 9.2L/100km. With a 57-liter fuel tank, it can travel over 600 kilometers. Below are details about the new Avancier: 1. Dimensions: The new Avancier measures 4858mm in length, 1942mm in width, and 1675mm in height, showing an increase compared to the previous model. 2. Exterior: The new Avancier largely retains the design of its predecessor but features optimized details that enhance its overall appearance. For instance, the grille has been changed from a mesh pattern to a horizontal bar design, giving it a more robust look. The lower bumper has also been redesigned to appear more refined, and the fog lights have been more rationally positioned.
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What needs to be replaced during a 15,000-kilometer maintenance?

During a 15,000-kilometer maintenance, the following items need to be replaced: 1. Engine oil: The engine cannot operate normally without oil, as it plays roles in lubrication, cleaning, sealing, buffering, rust prevention, and heat dissipation within the engine; 2. Oil filter: Without an oil filter, the oil will become dirty after some use, affecting the engine's lubrication and heat dissipation; 3. Air filter: The engine inhales a large amount of air during operation. If the air is not filtered, the suspended dust in the air will be sucked into the cylinders, accelerating the wear of the piston group and cylinders; 4. Cabin air filter: Without a cabin air filter to filter harmful particles, the car's air conditioning system can become polluted, reducing the performance of the cooling system and affecting driving safety.
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How to Judge the Distance of the Rear Vehicle When Driving at Night?

Methods for judging the distance of the rear vehicle when driving at night: When the image of the rear vehicle occupies the entire rearview mirror, the distance between the two vehicles is approximately three meters; when the image of the rear vehicle occupies two-thirds of the rearview mirror, the distance is about five meters; when the image occupies half of the rearview mirror, the distance is about nine meters; and when the image occupies one-third of the rearview mirror, the distance is approximately twelve meters. It is important to appropriately increase the following distance when driving at night to prevent collisions between vehicles. Both nighttime and daytime vehicle encounters require certain techniques. During nighttime encounters, switch from high beams to low beams. If the oncoming vehicle does not switch to low beams, immediately reduce speed and use continuous switching between high and low beams to signal them. Also, pay attention to the situation in the right non-motorized lane during encounters.
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Why Was the BMW 316 Discontinued?

316's engine has inherent defects, with issues like oil burning instability and high costs. Below is relevant information about the BMW 316i: 1. Exterior Design: The BMW 316i shares a nearly identical appearance with the already available 320i, with the "316i" badge at the rear revealing its identity. Additionally, the new model still adopts a single-sided single-exhaust design. In terms of configuration, the car will be equipped with features such as an electric sunroof, headlight washers, a multifunction steering wheel, and parking sensors. 2. Powertrain System: The BMW 316i, produced by BMW Brilliance, is powered by a 1.6-liter twin-scroll single-turbocharged engine with the model number N13B16B, slightly different from the 1 Series' 1.6T engine (model number N13B16A). This engine delivers a maximum output of 100kW and a peak torque of 220Nm. The transmission system paired with the engine is an 8-speed automatic transmission.
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