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Should You Turn On AOFF While Driving?

1 Answers
Gael
07/29/25 2:33pm
AOFF can be turned on while driving. AOFF is the switch for the auto start-stop function, which effectively reduces fuel consumption and minimizes engine idling to decrease carbon buildup. However, the AOFF function should be turned off when the vehicle is driving through water, as it may cause engine damage. The illuminated AOFF light indicates that the auto start-stop function is active. The start-stop system works as follows: when the vehicle stops due to traffic congestion or at an intersection, and the driver presses the brake pedal and shifts to neutral, the StartStop system automatically checks if the engine is idling, the transmission is in neutral, the wheel speed sensors of the anti-lock system show zero, and the battery sensor indicates sufficient energy for the next start. If all these conditions are met, the engine will automatically shut off.
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Do Ordinary People Need Political Review to Buy Hongqi Cars?

Whether ordinary people need political review to purchase Hongqi cars can be divided into the following two scenarios: Political review required: If the model purchased is the Hongqi L5, a political review is necessary. No political review required: For all other Hongqi models besides the L5, customers can directly purchase them from brand dealers without undergoing a political review. Below is a brief introduction to the Hongqi L5: Hongqi L5: The vehicle dimensions are 5555mm in length, 2018mm in width, and 1578mm in height, with a wheelbase of 3435mm. It is a four-door, five-seater sedan with a fuel tank capacity of 105 liters.
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Does Recirculating Air Save More Fuel Than Fresh Air Mode?

When using air conditioning, the recirculating air mode is more fuel-efficient than the fresh air mode. Here are the relevant details: 1. Recirculating Air Mode: Recirculating air mode draws air from inside the vehicle and circulates it through the blower, creating an internal airflow loop. It heats up the car faster in winter and cools it down quicker in summer, with particularly noticeable effects during smoggy conditions. This mode not only maintains cabin temperature more effectively but also promptly blocks external dust and harmful gases from entering the vehicle. 2. Fresh Air Mode: Fresh air mode draws outside air into the vehicle, directs it through the HVAC system for heating or cooling, then discharges it through the vents. This mode replenishes fresh air and improves cabin air quality. Since the drawn external air has higher oxygen content and lower humidity, it delivers superior defrosting performance in winter and better defogging results in summer.
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How long after car window tinting can ETC be installed?

After car window tinting, you need to wait one month before reinstalling the ETC. The process for installing ETC in a car is as follows: Upon receiving the device, first check whether the ETC card and electronic tag (OBU) are damaged. Press the anti-tamper button on the back of the OBU, and the red light will briefly illuminate. The OLED screen will display "Sign Invalid" and "Please Insert Card," indicating the device is functioning normally. Clean the front windshield to ensure the glass surface is smooth, clean, and dry. Then, peel off the adhesive backing of the OBU and attach it to the installation position. Press firmly with your hand for 2-3 minutes to eliminate air bubbles. Insert the ETC card with the front side facing the driver and the back side facing the windshield, ensuring the chip is inserted into the OBU device. Where can ETC be installed: For small vehicles such as cars and minivans, the OBU device should be installed in the upper middle part of the front windshield. For large vehicles like trucks and buses, the installation position is in the lower middle part. ETC installation position requirements: The height should be no less than 1.2 meters and no more than 2.5 meters. The installation angle N should be between 30º and 90º (the angle between the electronic tag surface and the horizontal plane).
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What is the Shenzhen Small Passenger Car Incremental Quota?

Shenzhen Small Passenger Car Incremental Quota refers to the quota certificate document for small passenger cars in Shenzhen. With this quota certificate, one can proceed with vehicle registration (Yue B license plate) in Shenzhen. In other words, you must first obtain the Shenzhen Small Passenger Car Quota before you can register a vehicle with a Shenzhen license plate. According to the "Detailed Rules for the Management of Shenzhen Small Passenger Car Incremental Regulation," currently, Shenzhen small passenger car quotas are mainly obtained through the following four methods: Incremental Quota (obtained through lottery or bidding), Stock Quota (mainly referring to quotas obtained before Shenzhen implemented license plate restrictions), Renewal Quota (applied for after a vehicle is transferred out, deregistered, or scrapped), and Other Quotas (applied for under circumstances such as inheritance or divorce).
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What Does the Break-in Period of a New Car Mean?

The break-in period of a car refers to the initial driving phase of a new car or after a major overhaul, typically covering 1000 to 1500 kilometers. This is the essential mileage required to ensure that mechanical components fully contact, rub, adapt, and settle. Below are some key considerations during the break-in period: 1. Warm up the car before starting: Wait 5 to 10 seconds after shifting to second gear before starting the vehicle. 2. Avoid high-speed driving: New cars have speed limits during the break-in period, with domestic cars limited to 40 to 70 kilometers per hour and imported cars to 100 kilometers per hour. 3. Avoid overloading: Carrying too much weight in a new car during the break-in period can damage mechanical components. 4. Do not remove the speed limiter prematurely: The speed limiter is a throttle device installed between the carburetor and the intake pipe. Owners should not remove it too early but wait until after driving 1000 kilometers. 5. Do not change the oil too early: The initial oil used in a car is specifically designed for the break-in period, featuring low viscosity, good heat dissipation, and excellent oxidation resistance. 6. Avoid emergency braking: Emergency braking not only shocks the braking system during the break-in period but also increases the impact load on the chassis and engine.
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What Causes the Engine Malfunction Light to Stay On?

There are mainly 7 reasons for the engine malfunction light to illuminate: Sensor failure: The sensors mentioned here include coolant temperature, crankshaft position, air flow, intake air temperature, oxygen sensors, etc. When these sensors are damaged, have poor contact, or signal interruption, the car's ECU cannot accurately obtain engine data, which will trigger the engine malfunction light. Fuel quality issues: If fuel and engine oil are not added as required by the manufacturer, it may cause engine wear and trigger the malfunction light. Poor mixture combustion: Poor mixture combustion can lead to engine carbon deposits or knocking. When detected by the oxygen sensor and reported to the ECU, the malfunction light will illuminate as a warning. Spark plug failure, ignition coil failure, fuel pump failure, and fuel line blockage can all cause poor mixture combustion in the engine. Turbocharging issues: Intake turbocharging pipes and turbochargers can also cause the engine malfunction light to illuminate. The most common issue is turbocharger damage, accompanied by symptoms such as oil leaks, high oil consumption, reduced power, metal noises, and blue or black smoke from the exhaust pipe. Intake issues: If there is a problem with the car's intake, it may cause engine pipe blockage, and in severe cases, trigger the engine malfunction light. A dirty air filter that is not cleaned regularly can lead to intake problems. Exhaust issues: Exhaust faults can also cause the engine malfunction light to illuminate. Rear oxygen sensor, catalytic converter, exhaust camshaft, and bearing failures are all causes of exhaust problems, with the catalytic converter being the most common. Using leaded gasoline, lead or silicon-containing lubricant additives, physical damage to the catalytic converter, or engine fuel system failures can easily cause catalytic converter issues. Anti-theft system failure: If the car's electronic anti-theft system malfunctions or the anti-theft controller does not match the engine electronic controller, the anti-theft system can prevent the engine from operating normally and trigger the malfunction light. If the engine malfunction light is on, follow these steps: First, check if the engine is running normally and if there are any issues like shaking or smoke. If so, avoid restarting the engine. Note: Do not restart the engine if the red warning light is on. If the engine can start, turn it off for 5-10 minutes. Without pressing the brake, press the start button once or turn the key halfway to the "on" position without pressing the clutch. The car will perform a self-check after powering on. Wait 5-10 seconds and observe if the malfunction light on the dashboard turns off. If the light remains on, visit a service center as soon as possible. The service center can use a portable diagnostic tool to read the fault code, identify the issue, and perform targeted repairs.
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