Can the in-car dash cam record sound?

How long is the BMW 740 in meters?

The BMW 740 has a body length of 5273mm, a width of 1902mm, a height of 1498mm, and a wheelbase of 3210mm. These are official figures. The length of the BMW 740 refers to the distance between two vertical planes perpendicular to the vehicle's longitudinal symmetry plane and touching the outermost protruding parts at the front and rear of the vehicle. The width refers to the distance between two planes parallel to the vehicle's longitudinal symmetry plane and touching the outermost rigid fixed protruding parts on both sides of the vehicle. The height refers to the distance between the highest point of the vehicle and its supporting plane. In terms of power, the BMW 740 comes with four different turbocharged engines across its models: 2.0T, 3.0T, 6.6T, and 4.4T, with the 6.6T and 4.4T being twin-turbocharged. All engines feature direct fuel injection technology and use aluminum alloy cylinder heads and blocks. The 2.0T engine delivers a maximum power of 195kW and a maximum torque of 400Nm, with a power peak between 5000-6500 rpm and torque peak between 1550-4500 rpm. The 3.0T engine delivers a maximum power of 250kW and a maximum torque of 450Nm, with a power peak between 5500-6500 rpm and torque peak between 1500-5200 rpm. The 6.6T engine delivers a maximum power of 430kW and a maximum torque of 850Nm, with a power peak between 5250-5750 rpm and torque peak between 1600-4500 rpm. The 4.4T engine delivers a maximum power of 390kW and a maximum torque of 750Nm, with a power peak between 5500-6000 rpm and torque peak between 1800-4600 rpm. National regulations on vehicle dimensions stipulate that, according to the national standard "GB1589-89," the total width of a vehicle excludes side mirrors. The width limitation ensures sufficient lateral clearance for overtaking between adjacent lanes. This means that, under national standards, the significance of vehicle width data lies in providing adequate space during overtaking, preventing accidents due to excessive width or situations where road markings are narrower than the vehicle. Additionally, national regulations stipulate that the total width of a vehicle must not exceed 2.5m to meet public road usage requirements.

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Can Gradient Color Wrapping Film Be Registered?

According to Article 6 of Chapter II of the "Road Traffic Safety Law," if the color change area of a motor vehicle does not exceed 30%, there is no need to register the change. Conversely, if it exceeds 30%, it must be registered and filed, and the change must be registered within 10 days after the vehicle's color is altered. Precautions for Vehicle Color Change: Before changing the color of a motor vehicle, it is necessary to consult the vehicle management office where the vehicle is registered to determine whether changing the vehicle's color is permitted in the region. If the region does not support this method, the registration procedure cannot be completed after the change, and the vehicle must be restored to its original color. Documents required for applying to change the body color of a motor vehicle: "Motor Vehicle Change Registration Application Form." Identity proof of the motor vehicle owner and agent. Motor vehicle registration certificate. Motor vehicle driving license. Additionally, according to the "Motor Vehicle Registration Regulations," owners are no longer required to apply to the vehicle management office in advance. They can first change the vehicle's color, install body kits, replace the engine, etc., and then apply to the vehicle management office for change registration. According to Article 10, registered motor vehicles must apply for change registration under the following circumstances: Change of body color. Replacement of the engine. Replacement of the body or frame. Replacement of the entire vehicle due to quality issues. Change of use nature, such as converting a commercial vehicle to a non-commercial vehicle or vice versa. The motor vehicle owner's residence moves out of or into the jurisdiction of the vehicle management office. Furthermore, according to Article 15 of the "Road Traffic Safety Law of the People's Republic of China": police cars, fire trucks, ambulances, and engineering rescue vehicles must be painted with designated patterns and equipped with alarms and signal lights as required. Other motor vehicles are prohibited from painting, installing, or using patterns, alarms, or signal lights that are specific to or resemble those of the aforementioned vehicles. Article 56 of the "Motor Vehicle Registration Regulations" states that if the body color is changed without registering the change as required, the traffic management department of the public security authority may issue a warning or impose a fine. The vehicle may also be impounded and required to be restored to its original color.

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Solutions for Chery Arrizo 7e Charging Faults?

Arrizo 7e high-voltage faults can be resolved with the following methods: If it's not an issue with the high-voltage coil, then it's likely a problem with the oscillation power supply. First, check for any open circuits, then inspect the high-voltage wires and ignition coil. Verify whether the main relay ignition system power supply is normal and if the crankshaft position sensor signal is good. If the high-voltage coil is open-circuited, it can only be replaced. The Arrizo 7e is Chery's first mass-produced plug-in hybrid model. Externally, the Arrizo 7e is almost indistinguishable from the internal combustion engine version, with only two differences: a chrome strip above the grille designed in matte black and the badge at the rear, making the overall appearance not highly distinctive. The interior differences are even fewer, with seat stitching changed to light blue and minor variations in the dashboard details. In terms of power, the Arrizo 7 PHEV plug-in hybrid version is equipped with a plug-in hybrid system consisting of a 1.6L gasoline engine and an electric motor, paired with a CVT transmission. Its minimum fuel consumption is only 1.9L/100km, with a battery capacity of 9.2kWh and a pure electric driving range of over 50km. It does not come with a fast-charging interface; slow charging to full takes about 4 to 5 hours. The charging time is acceptable to most users. It's worth noting that the Arrizo 7e enjoys provincial and municipal subsidies in many cities.

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What Causes Insufficient Tire Pressure in Cars?

Damage to the car tire or slow air leakage from the car tire. Precautions for tire inflation: Always use a pressure gauge to check the pressure to avoid over-inflation, which can cause the tire to burst. After stopping the vehicle, wait for the tire to cool down before inflating, as driving increases tire temperature, affecting pressure. Check the valve stem. If the valve stem and valve core are not properly aligned, with protrusions, depressions, or other defects, it will be difficult to inflate and measure pressure. Ensure cleanliness during inflation. The air being pumped in must not contain moisture or oil, as this can deteriorate and damage the inner tube rubber. Do not exceed the standard pressure excessively and then release air, nor should you over-inflate after being unable to inflate for a long time while traveling. Exceeding the standard pressure too much can overstretch the cords, reducing their strength and affecting the tire's lifespan. Before inflating, clean any dust from the valve stem and avoid loosening the valve core. After inflating, apply soapy water (or saliva) to the valve stem to check for leaks (small bubbles will form if there is a leak). Ensure the valve cap is properly fitted and tightened to prevent dirt from entering the valve stem. When inflating radial tires, due to their structure, their sinking amount and contact area are larger, often leading to the misconception that they are under-inflated, resulting in over-inflation. Conversely, because their sinking amount and contact area are naturally larger, low pressure may be mistaken for adequate inflation. Always use a standard pressure gauge to measure. The inflation pressure for radial tires should be 0.5-1.5 kg/cm² higher than that for regular tires. The pressure gauges in vehicles or those used in tire shops should be calibrated regularly to ensure accurate pressure checks.

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Can ETC be installed on the black dots of the windshield?

ETC devices can be installed on the black dots of the windshield, as long as they do not obstruct the driver's view and can detect the toll station's equipment. However, installing ETC on the black dots has a drawback: the solar charging capability of the ETC device may weaken, and over time, it might run out of power. For small cars, the ETC is generally installed in the upper-middle part of the front windshield, while for large vehicles like trucks and buses, the installation position is in the middle-lower part. The suitable installation position should be no lower than 1.2 meters and no higher than 2.5 meters, with an installation angle between 30 to 90 degrees. If the vehicle has or will have anti-explosion film installed, it may affect the signal transmission of the microwave communication link, so the ETC should be installed in the microwave window area. Here are some precautions for ETC installation: Do not obstruct the view. It is best to install it behind the rearview mirror: Many car models have windshields with a large rearward tilt, which reduces the driver's field of vision. If this is not considered during ETC installation, it may increase the driver's blind spot. Installing it behind the rearview mirror on the right side can avoid obstructing the view. Do not affect charging: The ETC electronic tag consumes power but generally does not require charging or battery replacement because it has a solar panel on the back for self-charging. Therefore, during installation, avoid the black areas of the windshield and positions that may block the solar panel. Do not remove it randomly once installed: The button in the middle of the adhesive is an anti-removal lever connected to a switch. After installation, the windshield will press the anti-removal lever in. If the tag is removed randomly, the lever will pop out and trigger the switch, locking the electronic tag and rendering it unusable. You will then need to visit an ETC service point to unlock it. This mechanism is designed to prevent multiple vehicles from sharing one device. When using ETC, note the following: The ETC transaction sensing range is 8 meters. To avoid paying for the vehicle in front due to its ETC device malfunction, maintain a distance of at least 10 meters from the vehicle ahead. The ETC lane recognizes vehicles at a speed of 20 km/h; driving too fast may result in failed fee deduction. If using a debit card linked to ETC, insufficient balance may also cause deduction failure.

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What are the hazards of coasting in neutral gear downhill?

When coasting downhill in neutral gear, the vehicle loses the engine's braking effect. Due to gravity, the car's speed will increase continuously. Without the engine's braking assistance, the braking distance is significantly extended, meaning the effectiveness of the brakes is greatly reduced, putting the vehicle in an out-of-control state. Coasting in neutral refers to the driver shifting the vehicle into neutral gear while driving on the road, using inertia to glide. More hazards of coasting in neutral downhill include: 1. Overheating the transmission, shortening its lifespan. 2. Rapidly increasing the temperature of the brake pads, potentially leading to brake failure. 3. Increased likelihood of the engine stalling while coasting in neutral.

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Can the in-car dash cam record sound?

How long is the BMW 740 in meters?

Can Gradient Color Wrapping Film Be Registered?

Solutions for Chery Arrizo 7e Charging Faults?

What Causes Insufficient Tire Pressure in Cars?

Can ETC be installed on the black dots of the windshield?

What are the hazards of coasting in neutral gear downhill?

Car Window Won't Roll Up or Down?

How to Resolve Automatic Emergency Braking System Malfunction in New Cars?

What is the fuel tank capacity of Toyota vehicles?

Can You Still Drive If the Car's CV Joint Is Broken?