What is the appropriate pressure for car air conditioning pressure testing?

1 Answers
SanEli
07/30/25 7:07am
Car air conditioning pressure testing is suitable at around 20 to 30 bar, which should be higher than the working pressure of the car air conditioning. Nitrogen pressurization is generally used for pressurization and leak detection in car air conditioning systems. Car air conditioning refers to the air conditioning device installed in a car, which can cool, heat, ventilate, and purify the air inside the cabin, providing a comfortable environment for passengers, reducing driver fatigue, and improving driving safety. Car air conditioning generally includes refrigeration devices, heating devices, and ventilation devices. This combined system makes full use of the limited space inside the car, with a relatively simple structure and convenient operation.
Was this review help?
15
3
Share
More Forum Discussions

How many kilometers are required for the third driving test?

For the third subject of the driving test, 120 kilometers of valid mileage and 7.5 hours of valid study time are required. The test mileage regulations for different vehicle types in the third subject are as follows: 1. Bus test mileage: Large buses and medium-sized buses require no less than 20 kilometers, including no less than 10 kilometers during the day and no less than 5 kilometers at night. 2. Urban vehicle test mileage: Tractor trucks, city buses, and large trucks require no less than 10 kilometers, including no less than 5 kilometers during the day and no less than 3 kilometers at night. 3. Small vehicle test mileage: Small cars, small automatic transmission cars, low-speed trucks, and small automatic transmission cars for the disabled require no less than 3 kilometers, with no less than 20% of the tests conducted at night; if no night test is conducted, a simulated night light usage test should be performed.
5
0
Share

How Many Times Can Full Score Education Be Taken?

Full score education does not have a specific limit on the number of times it can be taken. The following is extended knowledge about full score education: 1. What is full score education: A scoring cycle is 12 months, calculated from the date of initial receipt. The so-called full score education applies to motor vehicle drivers who accumulate 12 points or more in a scoring cycle. The duration of full score education is 7 days, with no less than 4 hours of education per day, including no less than 3 days of on-site education. For drivers of large and medium-sized passenger and cargo vehicles, school buses, and those who have reached 12 points twice or more or accumulated 24 points or more within 12 months, the on-site education time shall not be less than 5 days. 2. Content of full score education: Road traffic safety laws and regulations; civilized driving common sense for traffic safety; emergency response knowledge; traffic accident case warning education; defensive driving knowledge; driving mental health knowledge; and other related knowledge.
15
0
Share

Which car is the Volkswagen Ladiva?

Volkswagen Ladiva is the Volkswagen Lavida, a compact car under SAIC Volkswagen. Its exterior dimensions are 4670mm in length, 1806mm in width, and 1474mm in height, with a wheelbase of 2688mm. The body structure is a 4-door, 5-seater sedan. The Volkswagen Lavida is equipped with a 1.4L turbocharged engine and a 1.5L naturally aspirated engine, paired with a 7-speed dual-clutch transmission, a 5-speed manual transmission, and a 6-speed automatic transmission. The drivetrain is front-wheel drive, and the suspension system consists of a MacPherson strut front suspension and a torsion beam rear suspension.
19
1
Share

Why is 10 points deducted for starting the engine in Subject 3?

In the Subject 3 driving test, failing to promptly release the ignition switch after starting the engine refers to not releasing the car key in time after ignition, which results in a 10-point deduction. The passing criteria for each subject test are as follows: 1. Subject 1: The full score for Subject 1 is 100 points, and a score of 90 or above is considered passing. 2. Subject 2: The full score for Subject 2 is 100 points. For large buses, tractors, city buses, medium-sized buses, and large trucks, a score of 90 or above is required to pass. For other vehicle types, a score of 80 or above is sufficient. 3. Subject 3: The road driving skills and safety and civilized driving knowledge tests in Subject 3 each have a full score of 100 points, and a score of 90 or above in each is required to pass.
12
1
Share

What Happens When There Is Excessive Oil in the First Bank Cylinder Combustion System?

The first bank cylinder combustion system having excessive oil can cause engine oil to enter the combustion chamber, leading to engine damage. The reason for excessive oil may be due to a faulty cylinder head gasket in a water-cooled engine, allowing coolant to enter the cylinder, which increases the oil volume. Below is an introduction to related content: 1. The vehicle's combustion system: The function of the vehicle's combustion system is to ensure the fuel required for the engine's combustion. The combustion system is generally part of the vehicle's powertrain system, which refers to the engine generating heat by burning fuel in the combustion chamber to propel the vehicle forward. 2. The vehicle's powertrain system: The powertrain system transmits power from the crankshaft, flywheel, clutch, transmission, driveshaft, differential, and reducer to the wheels. When vehicle fuel operates within the combustion system, it consumes a portion of the power. During high-speed driving, this portion of power is used to overcome air resistance, effectively reducing vehicle fuel consumption.
1
4
Share

What is the maximum speed limit for motorcycles on highways?

Motorcycles are not allowed to exceed 110 kilometers per hour on highways. Highway speed regulations: Motorcycles are not allowed to exceed 110 kilometers per hour on highways. When motor vehicles are driving normally on highways, the minimum speed should not be less than 50 kilometers per hour. The maximum speed for small passenger cars should not exceed 110 kilometers per hour; for large passenger cars, freight vehicles, and motorcycles, the maximum speed should not exceed 90 kilometers per hour. However, when there are speed limit traffic signs or road markings indicating speeds inconsistent with the above regulations, the signs or markings should be followed. Driving in designated lanes: Motorcycles should drive in the rightmost lane. When motor vehicles are driving on highways, they should drive in the driving lanes. On highways with four or more lanes, small passenger cars with a design speed higher than 130 kilometers per hour should drive in the second and third lanes; large passenger cars, freight vehicles, and small passenger cars with a design speed lower than 130 kilometers per hour should drive in the third and fourth lanes or lanes further to the right.
1
3
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.