What Causes Car Air Conditioning to Leak Water?

1 Answers
IrisLynn
07/30/25 7:24am
Whether it is normal for a car to leak water when the air conditioning is on depends on the situation. It is normal for water to leak from the car's exterior, such as the exhaust pipe, when the air conditioning is running. This is condensation from the air conditioning and will not harm the car or the air conditioning system. However, if water leaks inside the car, such as under the passenger seat, it is abnormal and should be repaired at an auto repair shop. The car air conditioning system is a device that cools, heats, ventilates, and purifies the air inside the vehicle. Its purpose is to provide a comfortable environment for passengers, reduce driver fatigue, and improve driving safety. Reasons for water leakage when the car air conditioning is on: The refrigerant flows into the evaporator inside the car, where it absorbs heat from the air through contact with the evaporator. It is then compressed and expanded again, repeating this cycle to gradually remove heat from the air inside the car. Since the air contains a lot of water vapor, when it encounters the very cold evaporator, it turns into water and drains out from under the car chassis. Solutions for car air conditioning water leakage: After turning off the air conditioning, open the windows for ventilation. If the leakage is abnormal, promptly visit a specialized repair shop or 4S store for repairs to avoid affecting normal driving.
Was this review help?
8
1
Share
More Forum Discussions

What are the reasons for the inaccurate fuel gauge display on the Baojun 510?

The reasons for the inaccurate fuel gauge display on the Baojun 510 include: faulty fuel level sensor, clogged carbon canister, malfunctioning fuel gauge, etc. Fuel refill amount: Generally, filling until the pump automatically stops is sufficient. There is no need to manually add more to round up the amount. After refueling, remember to tighten the fuel cap until you hear a click before leaving. Checking the fuel gauge: Before driving, check the fuel gauge. Based on the distance of your trip and the fuel gauge reading, calculate whether you need to refuel during the journey. It is advisable to refuel in advance rather than waiting for the fuel warning light to come on. The fuel pump is located inside the fuel tank and operates at high temperatures when continuously working. Being submerged in fuel helps to cool it effectively. When the fuel warning light comes on, it indicates that the fuel level is below the fuel pump. If you always wait for the light to come on before refueling, it will shorten the lifespan of the fuel pump. Additionally, having too little fuel in the tank may even cause the fuel pump to burn out. Best time to refuel: It is better to refuel in the morning or evening, avoiding the midday when the sun is strong and temperatures are high. Gasoline is charged by volume rather than by weight, and it expands with heat and contracts with cold. Refueling in the morning or evening means that the same volume of gasoline will have a higher mass, saving you money.
9
2
Share

What is the reason why the BMW still prompts after replacing the remote control battery?

The reason why the BMW still prompts after replacing the remote control battery is that the battery has a sensing period, and a restart will solve the issue. Appearance: The new BMW 1 Series adopts BMW's latest family design language, featuring the classic M-inspired three-section aerodynamic front bumper paired with a honeycomb grille design. Performance: The BMW 1 Series offers two powertrain options: a 1.5-liter turbocharged engine and a 2.0-liter turbocharged engine. The 1.5-liter turbocharged engine is a three-cylinder unit, while the 2.0-liter turbocharged engine is a four-cylinder unit. The 1.5-liter engine delivers a maximum power of 100 kW and a maximum torque of 220 Nm, while the 2.0T engine produces a maximum power of 141 kW and a maximum torque of 280 Nm.
8
1
Share

The Difference Between Belt Drive and Gear Drive

Belt transmission relies on friction, while gear transmission operates through meshing. Belt Drive: Belt drive, also known as 'band drive', is a type of mechanical transmission. It consists of one or several belts tightly fitted over two wheels (pulleys). The wheels are mounted on the driving shaft and driven shaft respectively. It transmits motion and power through the friction between the belt and the wheels. Gear Drive: Gears are mechanical components with teeth on the rim that continuously mesh to transmit motion and power. The application of gears in transmission appeared very early in history. By the end of the 19th century, the principle of generating gear cutting method and specialized machine tools and tools utilizing this principle emerged successively. With the development of production, the smoothness of gear operation has gained increasing attention.
13
3
Share

Is it necessary to go to a 4S shop to clear the fault code?

Clearing fault codes does not necessarily require going to a 4S shop. Fault codes: Automotive fault codes are the codes reflected by the vehicle's computer ECU after analyzing a fault. Generally, fault codes are caused by sensor malfunctions or poor sensor performance, but some mechanical faults cannot be read by the ECU. When a car engine malfunctions, the diagnostic computer will display the fault code after detection. Through this code, maintenance personnel can accurately locate the faulty component and proceed with repairs. Solutions: Check for open or short circuits in the wiring connecting the ignition switch, ECU, fault warning light (CHECK), and communication interface. The ECU may malfunction, causing abnormal self-diagnosis output signals. The fault warning light (CHECK) or communication interface may also be damaged.
18
1
Share

How many methods are there to check vehicle seizure on 12123?

There is one method to check vehicle seizure on 12123. How to check vehicle seizure status: Vehicle owners can download the relevant APP, input their personal information, and then verify their license plate number, driver's license number, vehicle model, and engine model to check their traffic violation records, such as running red lights or drunk driving. Additional information: You can go to the traffic police brigade office. There is usually a touch terminal in the office lobby where you can input your vehicle information and personal identity information to check the reasons for your violations. You can also log in to the external service website of your city's traffic management bureau. Find the vehicle violation seizure query. Input your license plate number and engine number, then click query to obtain your violation seizure records.
19
3
Share

Can a Broken Sunroof Be Covered by Insurance?

Can a broken sunroof be covered by insurance. Detailed introduction: The sunroof does not fall under the coverage of the glass breakage insurance. As part of the vehicle body, if the sunroof is damaged, it should be claimed under the vehicle damage insurance. According to current insurance clauses, when the sunroof glass is broken alone, even if the owner has purchased the additional glass breakage insurance, compensation can only be obtained under the vehicle damage insurance. The additional glass breakage insurance itself does not cover sunroof breakage. Functions of the sunroof: Preventing car exhaust: When stuck in traffic, it can prevent car exhaust from entering the vehicle. It's inevitable to encounter traffic jams during commutes, during which a lot of car exhaust can enter the vehicle. When emitting car exhaust, you can open the sunroof and close the side windows to prevent the exhaust from entering the vehicle. Quickly cooling the interior: After the car has been exposed to the sun, it can quickly lower the interior temperature. In summer, if the parking lot is full, the car may have to be parked under the sun. After a while, the temperature inside the car will rise. At this time, opening the sunroof can quickly dissipate the high temperature inside the car. It's better to turn on the air conditioning after the heat has dissipated.
6
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.