Should the AC Be Turned On for Car Air Conditioning Heating?

1 Answers
OJade
07/30/25 7:39am
When using the car air conditioning for heating, you should not turn on the AC. The AC button activates the compressor, which pressurizes the refrigerant (Freon). Here is some relevant information: 1. How car air conditioning heating works: It primarily utilizes the heat from the car's coolant circulation to maintain the temperature inside the car. During this process, the compressor does not work, and you only need to adjust the fan speed. Turning on the AC may lead to unnecessary fuel consumption. 2. How to use car air conditioning for heating: Simply adjust the fan speed button to blow warm air. This warm air is generated by utilizing the car's internal heat cycle, transferring the heat dissipated by the radiator into the cabin without increasing any fuel consumption.
Was this review help?
15
3
Share
More Forum Discussions

Is the Rear Seat of the Mercedes-Benz GLB Flat When Folded Down?

The rear seat of the Mercedes-Benz GLB is flat when folded down. The rear seats can be folded down using a pull strap. The Mercedes-Benz GLB features five adjustment functions for seat position, lumbar support, leg rest, headrest height, and backrest. The Mercedes-Benz GLB is a compact SUV with body dimensions of 4638mm in length, 1834mm in width, and 1687mm in height, and a wheelbase of 2829mm. In terms of power, the Mercedes-Benz GLB is equipped with a 1.3-liter turbocharged four-cylinder engine, delivering 163 horsepower and a maximum torque of 250 Nm. This engine is paired with a 7-speed dual-clutch transmission.
1
3
Share

Is Car Battery Repair Fluid Useful?

Whether car battery repair fluid is useful depends on the degree of battery degradation. If the car battery's degradation is not severe, after one full charge-discharge cycle, the range can increase by 5 to 15 kilometers. After seven full charge-discharge cycles, the battery capacity can recover to over 90%. However, if the car battery's degradation is already very severe, even using battery repair fluid will not help. A car battery, also known as a storage battery, is a type of battery that works by converting chemical energy into electrical energy. The commonly referred-to car battery is a lead-acid battery, which is mainly made of lead and its oxides, with a sulfuric acid solution as the electrolyte.
2
5
Share

Why is the window rolling up and down slowly?

The reasons for slow window operation: 1. The window felt channel is too tight or doesn't match the curvature of the glass; 2. The window regulator has become loose over time, causing misalignment, or the cable has developed burrs, increasing resistance; 3. The regulator motor has aged and lacks sufficient power; 4. The outer water seal strip has aged and creates resistance, or the inner dust seal strip has deteriorated. It's recommended to visit a repair shop for inspection. Automotive glass is manufactured by heating it to near softening temperature in a furnace, then rapidly transferring it to cooling zones with varying intensities, creating different stress levels between the main viewing area and peripheral zones. Typically, this process produces zone-tempered glass.
20
0
Share

What does D3 mean in an automatic transmission car?

D3 in an automatic transmission car means locking the gear in the 3rd gear, where the vehicle can automatically switch between 1st, 2nd, and 3rd gears, but cannot exceed the 3rd gear. Automatic transmissions also have D1 and D2. D1 means manually locking the car's gear in the 1st gear, not controlled by the car itself; D2 means manually locking the gear in the 2nd gear, not exceeding the 2nd gear, allowing the car to automatically switch between 1st and 2nd gears. An automatic transmission eliminates the need for the driver to manually shift gears, as the vehicle automatically selects the appropriate gear based on driving speed and traffic conditions. Generally, automatic transmission cars have six gear positions, from top to bottom: P, R, N, D, S, L.
15
1
Share

What are the impacts of excessive engine oil in Tucson?

Tucson excessive engine oil impacts: 1. Increases internal engine power loss and leads to more oil splashing onto cylinder walls, potentially causing oil burning and exhaust issues; 2. Excessive oil in the lubrication system increases the load and pressure on components, accelerating their aging, and may even result in crankshaft oil seal leakage. In severe cases, some cylinder gaskets in the crankshaft case may leak oil. The Tucson is a compact SUV under Hyundai, with body dimensions of 4545mm in length, 1850mm in width, 1670mm in height, and a wheelbase of 2670mm.
20
4
Share

What are the benefits of cleaning the three-way catalytic converter in a car?

The benefits of cleaning the three-way catalytic converter in a car: After cleaning the three-way catalytic converter, the vehicle's acceleration becomes noticeably faster, power improves, and exhaust emissions meet standards, reducing the risk of spontaneous combustion and making driving safer. The three-way catalytic converter is an important external purification device installed in the car's exhaust system. It converts harmful gases such as CO, HC, and NOx in the car's exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions. Regularly cleaning the three-way catalytic converter not only helps improve the vehicle's engine performance but also reduces frequent alarms from the exhaust system's oxygen sensor. It is particularly suitable for closed-loop fuel injection engines. Vehicles with good driving habits can be cleaned every 10,000 to 20,000 kilometers.
18
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.