Which Refrigerant is Used in Car Air Conditioning?

1 Answers
SanLillian
07/30/25 3:07am
Car air conditioning systems use R134a refrigerant, which is a relatively environmentally friendly refrigerant. The refrigerant in car air conditioning is used for cooling, and the cooling principle involves the transformation of the refrigerant between different states to achieve cooling. When the car air conditioning is in cooling mode, the engine drives the compressor to operate. The compressor continuously compresses the refrigerant and delivers it to the evaporator. Once the refrigerant reaches the evaporator, its volume expands, allowing it to absorb heat and thereby cool the evaporator. The cooled evaporator then cools the air blown by the blower, enabling the air conditioning vents to release cold air. The front of the car is equipped with a condenser, which dissipates heat from the refrigerant.
Was this review help?
17
2
Share
More Forum Discussions

Where is the Cruze VIN located?

Vehicle Identification Number (VIN), commonly referred to as the chassis number or frame number. Below is relevant information: 1. The VIN consists of a total of 17 characters, which can be divided into three parts. Part 1: WMI—World Manufacturer Identifier (positions 1-3); Part 2: VDS—Vehicle Descriptor Section (positions 4-9); Part 3: VIS—Vehicle Identifier Section (positions 10-17). 2. Although VINs follow a unified global standard, apart from the basic requirements, other data can vary significantly between different countries and automobile manufacturers, with no unified regulations. Therefore, without consulting additional resources, the vehicle information that can be gleaned from the VIN may be very limited.
6
1
Share

Where is the tire pressure reset for the Baojun 560?

The tire pressure reset for the Baojun 560 must be performed via a computer, as there is no reset button. The Baojun 560 is equipped with high-performance Continental tires and features a TMPS (Tire Pressure Monitoring System), which automatically monitors tire pressure in real-time while driving, displaying the pressure data for each tire to ensure driving safety. Below is some relevant information about the Baojun 560: 1. The Baojun 560, the first SUV under the Baojun brand, adheres to SAIC-GM-Wuling's 'All-Round Safety' concept and is designed and developed according to five-star safety standards. 2. The Baojun 560 comes with a reverse camera function. When parking, the system automatically activates the wide-angle far-infrared camera located at the rear of the vehicle, clearly displaying the rear view on the LCD screen. The reverse camera monitoring system is more intuitive and reliable than an all-around parking radar.
15
4
Share

What is the range of the BMW i8 electric vehicle?

The BMW i8 electric vehicle has a range of 50 kilometers. Specific details are as follows: 1. The BMW i8 utilizes a plug-in hybrid system, combining a 1.5-liter three-cylinder turbocharged engine with an electric motor. The engine is the primary source of propulsion, with the electric motor serving as an auxiliary. 2. The powertrain type is plug-in hybrid. 3. The BMW i8 measures 4689mm in length, 1942mm in width, 1282mm in height, with a wheelbase of 2800mm. 4. The BMW i8's engine delivers a maximum power of 170KW and a maximum torque of 320NM.
14
5
Share

What are the differences between Dongfeng Honda and Guangzhou Honda?

Dongfeng Honda and Guangzhou Honda differ in the following aspects: 1. Different development histories: Guangzhou Honda has a relatively longer development history and is more experienced in the private car market, with higher market responsiveness and flexibility; while Dongfeng Honda has not experienced setbacks, and its development process has a sense of starting high and ending low. 2. Differences in main models and market positioning: Dongfeng Honda started with compact SUV models and has advantages in this field, but has been relatively sluggish in the mid-to-high-end car segment; Guangzhou Honda has three trump cards: Accord, Fit, and Odyssey, and in terms of sales, Guangzhou Honda is more stable. 3. Differences in product quality and consumer reputation: Guangzhou Honda's factory has a higher degree of automation and better quality control than Dongfeng Honda, with a lower ranking in the hundred-car failure rate. In the minds of many car consumers, Guangzhou Honda's quality and reputation are higher than those of Dongfeng Honda.
15
1
Share

Which engine oil is suitable for Hyundai ix35?

Hyundai ix35 can choose to use the original SM grade 5W-20 engine oil. The following are the characteristics of engine oil: 1. Engine oil, also known as engine lubricant. It can lubricate and reduce friction, assist in cooling, seal and prevent leakage, prevent rust and corrosion, and provide shock absorption for the engine. 2. Engine oil consists of two parts: base oil and additives. The base oil is the main component of lubricating oil, determining its basic properties, while additives can compensate for and improve the shortcomings of the base oil's performance. 3. If high-quality engine oil is not used, the engine may not reach its rated power. Fuel consumption will be higher than the standard. Parts of the fuel system may be damaged prematurely, leading to damage to other components.
7
2
Share

What Causes the ABS Light to Illuminate in Volkswagen Tiguan?

ABS light illumination can occur in various states, each with different fault causes and solutions, as detailed below: State 1: ABS warning light remains constantly illuminated (most common). Cause 1: The ABS wheel speed sensor's sensing area is covered by dirt, mud, or other contaminants, affecting its ability to detect the corresponding speed signal. This prevents the ABS control unit from determining the vehicle speed and wheel slip rate, thus failing to issue appropriate commands to regulate braking. Solution: Clean the contaminants from the wheel speed sensor and adjust the gap between the sensor and the tone ring to restore normal function. Cause 2: Loose connections in the system wiring or poor contact in the ABS relay can lead to signal issues, causing system malfunction. Solution: Inspect wiring connections and reconnect any loose parts. State 2: ABS warning light intermittently illuminates but turns off when accelerating. Cause: When multiple electrical devices are in use, the battery voltage may drop below 10.5V. As the engine speed increases and voltage rises, the ABS light turns off. This can also occur if the ABS system's power supply voltage is too low due to poor terminal contact or grounding issues. Solution: Check the battery's specific gravity, inspect the charging system, and examine the power supply (e.g., voltage relay or poor power contact). State 3: ABS warning light remains illuminated after engine start and only turns off when the engine is turned off (IGFF). Cause: Poor grounding contact in the ABS hydraulic valve body; loose wiring connections in the ABS hydraulic valve body; or ABS control unit malfunction. Solution: Loosen and retighten the grounding screw on the hydraulic valve body, cleaning the contact surface if necessary. Check for enlarged gaps in connectors. Replace the ABS or ABS/ASR control unit if needed. State 4: ABS warning light illuminates during high-speed driving. Cause: The ABS control unit detects a significant discrepancy between rear and front wheel speeds during high-speed driving. This may also occur due to incorrect tire or wheel rim specifications. Solution: Refer to the vehicle's tire and wheel rim specifications, typically found on the label near the fuel tank cap. State 5: ABS warning light intermittently illuminates. Cause: Improper adjustment of the brake light switch; poor internal contact in the brake light. Solution: With the engine running, press the brake pedal and manually push the brake switch linkage down fully, then release the pedal to complete self-adjustment. Replace the brake light switch if necessary. If the ABS warning light is illuminated, it is advisable not to continue driving. A lit ABS light indicates a malfunction in the anti-lock braking system, which can lead to wheel lock-up during emergency braking, causing loss of vehicle control and skidding. This poses significant safety risks as the driver may be unable to decelerate or adjust the vehicle's trajectory.
5
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.