How to turn off the front small lights that stay on?

Should You Use Internal or External Air Circulation in Winter?

Whether to use internal or external air circulation in winter depends on different situations: When drivers are about to operate the vehicle, they should first turn on the internal circulation to allow the interior temperature to reach a comfortable level. After entering the vehicle, it's also advisable to appropriately activate the external circulation to ensure air flow inside the car. During winter, when the car is in a sealed state, prolonged use of internal circulation will degrade the air quality inside. For short trips, using internal circulation alone is sufficient as it heats up faster. For long-distance driving, consider starting with internal circulation and periodically switching to external circulation. If the external air quality is poor, be more cautious when using external circulation.

6

3

Share

Does Using the Car Heater Consume More Fuel?

Using the car heater does not consume more fuel. When the car heater is turned on, the coolant flows into the heater core, which helps dissipate heat from the coolant and protects the vehicle. The heat primarily comes from the car's radiator, and some of this heat is directed into the car's interior via the blower. This heat is a natural byproduct of the car's operation and does not require the compressor to generate heat intentionally, so it generally does not increase fuel consumption. During winter, to maintain the engine's temperature, the system is mostly in a circulating state. When the heater is turned on, the cold air inside the car quickly flows over the surface of the heat exchanger, effectively turning it into an efficient radiator within the engine's cooling cycle system.

19

1

Share

What is the fuel tank capacity of the Mazda6?

The fuel tank capacity of the Mazda6 is 64 liters, as officially announced. The Mazda6 uses 92-octane gasoline, with a fuel consumption of 7.8 to 8.2L per 100 kilometers. A full tank can provide a driving range of 760 to 820 kilometers. During daily driving, it is important to monitor the remaining fuel level in the tank. This is typically done by observing the fuel gauge inside the vehicle. Under normal circumstances, the fuel level will be accurately displayed on the gauge. The fuel gauge usually has 5 to 6 segments, and it is advisable to refuel when there are only 2 segments left to avoid running out of fuel midway. During actual refueling, the amount of fuel may exceed the marked capacity. This is because the fuel tank capacity specified by the manufacturer is measured from the bottom of the tank to the safe fill level, and there is additional space from the safe fill level to the tank opening. This space is designed to allow for fuel expansion when temperatures rise, preventing overflow. If fuel is filled up to the tank opening during refueling, the actual refueling amount may exceed the marked tank capacity.

16

5

Share

What to Do When the Steering Wheel Shakes at High Speeds?

Solutions for steering wheel shaking at high speeds: First, check whether the tire pressure of the front and rear wheels is normal. If the tire pressure is normal, the issue may be with the vehicle's dynamic balance, and a four-wheel alignment may be required. Reasons for steering wheel shaking at high speeds: poor tire dynamic balance, deformation of the tire rim, dynamic balance failure of the half-shaft, damage to the half-shaft overpass bearing, and deformation of the wheel hub. The more precise the four-wheel alignment of the vehicle, the more stable the vehicle body will be. When performing dynamic balance on the tires, pay attention to the direction of the tires, avoid applying too much lubricant on the tires to prevent alignment errors.

18

5

Share

What are the reasons for the yellow engine warning light in the 14th-generation Sylphy?

Sensor issues, engine misfire, car maintenance problems, fuel quality issues, poor mixture combustion, engine intake problems, turbocharging issues, exhaust problems, and anti-theft system malfunctions are all potential causes. Additionally, when starting the car, the vehicle performs a self-check on the engine system. Normally, the engine warning light should turn off after the self-check is completed. If it remains on for an extended period, you should promptly visit a repair shop to seek professional assistance in diagnosing and eliminating potential safety hazards. Below is a detailed explanation of each type of fault: Sensor Issues: Sensors include coolant temperature, crankshaft position, air flow, intake temperature, oxygen sensors, etc. When these sensors are damaged, have poor contact, or experience signal interruptions, the car's ECU cannot accurately obtain engine data, which will trigger the engine warning light. Solution: If such issues occur, promptly visit a repair center for professional diagnosis and elimination of safety hazards. Maintenance Problems: Poor engine maintenance is the most common cause of the engine warning light turning on. Vehicles have specific maintenance cycles. If maintenance is not performed on schedule, combined with poor driving habits, the engine's operational burden will increase, eventually causing the engine warning light to illuminate as a reminder of a fault. Solution: Follow the time or mileage intervals specified in your car’s maintenance manual and perform comprehensive maintenance on time to eliminate non-maintenance-related issues. Fuel Quality Issues: This refers to both fuel and engine oil. The fuel used in cars usually has a specific octane rating, and engine oil can be semi-synthetic or fully synthetic. Manufacturers typically recommend which fuel octane rating and type of engine oil to use. If the owner fails to follow these recommendations, long-term use can cause engine wear, leading to the warning light turning on. Solution: Use the fuel octane rating and engine oil grade specified for your vehicle. Poor Mixture Combustion: Faulty spark plugs, fuel pump issues, or clogged fuel lines can all lead to poor mixture combustion in the engine. Poor combustion results in engine carbon buildup or knocking, which is detected by the oxygen sensors and reported to the ECU, triggering the warning light. Solution: Check the engine ignition coils and spark plugs; inspect the performance of related sensors, such as (front/rear) oxygen sensors, coolant temperature sensors, intake temperature sensors, throttle position sensors, air flow meters, and intake manifold pressure sensors. Check the air filter’s contamination level—if clogged, it can cause an overly rich mixture, so clean or replace it as needed. Inspect the fuel injectors for leaks and the fuel pressure regulator’s performance, as malfunctions can also lead to an overly rich mixture. It is recommended to visit a professional 4S shop to check the relevant sensors and engine control unit. Intake Problems: The engine requires air for combustion, and the air filter plays a crucial role in this process. If the car’s air filter is dirty or not cleaned regularly, it can affect the intake, potentially leading to blockages over time. In severe cases, this can cause the engine warning light to turn on. Solution: Regularly clean or replace the car’s air filter to ensure the intake system functions properly. Turbocharging Issues: Intake turbocharging pipes and the turbocharger itself can also cause the engine warning light to illuminate. The most common issue is a damaged turbocharger, which may also result in oil leaks, excessive oil consumption, reduced power, metallic noises, or blue/black smoke from the exhaust. Solution: Visit a 4S shop to inspect and replace the turbocharger. Generally, repairs for such issues are not cost-effective, so replacing the component is the better option. Exhaust Problems: Rear oxygen sensors, the catalytic converter, and exhaust camshafts and bearings can cause issues. The most common problem is a faulty catalytic converter, which can be damaged by impacts or engine fuel system malfunctions. Solution: Use lead- or silicon-based lubricants to maintain and clean the catalytic converter. Anti-Theft System: If the car’s electronic anti-theft system malfunctions or if the anti-theft controller is incompatible with the engine control unit, the anti-theft system can prevent the engine from operating normally, while also triggering the engine warning light. Solution: Visit a professional repair shop for a systematic diagnosis, as this issue cannot be fixed by individuals.

12

4

Share

What does the transmission system fault warning in BMW 740 mean?

When the BMW 740 reports a transmission system fault, it indicates issues with components such as the clutch, transmission, universal joint drive, main reducer, differential, and half-shaft. 1. Other potential faults: However, in reality, besides these component failures being classified as transmission system faults, many unrelated issues such as fuel pump, injector, solenoid valve, sensor malfunctions, or even a damaged screw could trigger the transmission system fault warning. 2. Transmission system: The composition and arrangement of the transmission system vary depending on the engine type, installation position, and vehicle purpose. For example, off-road vehicles often adopt four-wheel drive, which adds components like transfer cases to the transmission system. As for front-engine front-wheel-drive vehicles, their transmission systems don't include devices like drive shafts.

18

4

Share

How to turn off the front small lights that stay on?

Should You Use Internal or External Air Circulation in Winter?

Does Using the Car Heater Consume More Fuel?

What is the fuel tank capacity of the Mazda6?

What to Do When the Steering Wheel Shakes at High Speeds?

What are the reasons for the yellow engine warning light in the 14th-generation Sylphy?

What does the transmission system fault warning in BMW 740 mean?

Why is the engine noise loud in the Tiguan?

How to Clean Car Air Conditioning Vents?

What are the impacts of driving with underinflated tires?

What is the purpose of a dash cam?