How many cylinders does the BMW 5 Series have?

What does 4A mean in four-wheel drive vehicles?

4A is a driving mode that automatically adjusts the vehicle's power distribution when road conditions change, allowing for smoother driving. On-demand four-wheel drive: As the name suggests, on-demand four-wheel drive is a system that engages only when necessary. Vehicles equipped with this system typically operate in two-wheel drive on urban roads. The system only activates when the onboard computer detects wheel slip or loss of traction, switching between four-wheel and two-wheel drive by connecting or disconnecting the transfer case. The advantage is its economic and convenient operation without manual intervention, though its off-road capability is weaker compared to other four-wheel drive modes. It usually takes at least one second for the differential to lock. Part-time four-wheel drive: Normally operating in two-wheel drive, engaging the transfer case creates a rigid connection between the front and rear axles, distributing power equally to all four wheels. Some high-end off-road vehicles often feature front, center, and rear differential locks, typically with 4L and 4H modes. Since locking the front and rear drives eliminates speed differences between wheels, theoretically, on high-traction paved roads, 4H and 4L modes cannot be used at high speeds due to steering interference, which could damage the differential or cause rollover accidents. Part-time four-wheel drive does not improve high-speed stability or body tracking on slippery surfaces.

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How to Conduct the First-Year Inspection for a New Car?

7-seater and below new cars do not require an inspection in the first year, but they need to obtain the green label in the second year. Relevant information: 1. Regulatory basis: According to the "Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China," motor vehicles must undergo safety technical inspections within the following periods from the date of registration: passenger vehicles for commercial use must be inspected once a year within 5 years; after 5 years, once every 6 months; trucks and large or medium-sized non-commercial passenger vehicles must be inspected once a year within 10 years; after 10 years, once every 6 months. 2. Other bases: Small and micro non-commercial passenger vehicles must be inspected once every 2 years within 6 years; after 6 years, once a year; after 15 years, once every 6 months; motorcycles must be inspected once every 2 years within 4 years; after 4 years, once a year; tractors and other motor vehicles must be inspected once a year.

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What does engine net power mean?

Engine net power refers to the effective power output measured at the engine's power output shaft when the engine is equipped with all accessories under actual operating conditions and operates at the speed specified by the manufacturer on the engine test bench. The difference between engine power and net power: Engine power is calculated based on engine torque and speed, being proportional to the product of the two. When the product of the two is at its maximum, the engine's maximum power is obtained; Engine net power refers to the effective power output measured at the engine's power output shaft when the engine is equipped with all accessories under actual operating conditions and operates at the speed specified by the manufacturer on the engine test bench. Engine effective power: The effective power of any engine must be less than its internal power, and the ratio of the former to the latter is the mechanical efficiency of the engine. When an engine is used to directly drive a generator to produce electricity or to operate a compressor, its effective power equals the input power of the generator or the output power of the compressor; Since the effective power of most reciprocating engines can be measured using a brake dynamometer, it is often referred to as "brake power"; The actual power output from the engine's output shaft. The unit is expressed in kilowatts (kW). That is, the power output after subtracting the friction loss power of the engine's internal moving parts, the pumping loss power during the intake and exhaust processes, and the power consumed by necessary accessories such as the oil pump and fuel pump from the engine's indicated power.

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Should You Press the Clutch or Brake First in the Driving Test (Subject 3)?

In the Subject 3 driving test, you should press the clutch first, then the brake. Below is a relevant introduction to the content of the Subject 3 test: 1. Road driving skills: The road driving skills test for Subject 3 includes preparation before starting, simulated lighting test, starting, driving straight, shifting gears, changing lanes, pulling over, going straight through intersections, turning left at intersections, turning right at intersections, passing pedestrian crossings, passing school zones, passing bus stops, meeting oncoming vehicles, overtaking, making U-turns, and nighttime driving. 2. Safe and civilized driving knowledge: The safe and civilized driving knowledge test includes requirements for safe and civilized driving operations, safe driving knowledge under adverse weather and complex road conditions, emergency handling methods for situations like tire blowouts, and post-accident handling knowledge.

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Does a B2 license require an exam after being deducted 6 points?

A B2 driver's license with 6 points deducted does not require an exam; simply paying the fine will clear the deduction. Within 30 days after the scoring cycle ends, you must undergo a review at the traffic management department of the public security authority. If 12 points are deducted from the driver's license, the driver must participate in a study session at the vehicle management office within 15 days and pass a theoretical exam to have the license reinstated. Additional information: 1. Circumstances under which a driver must take an exam: If a motor vehicle driver has two or more instances of reaching 12 points or accumulates 24 or more points within one scoring cycle, the vehicle management office must also conduct a road driving skills test within 10 days after the driver passes the exam on road traffic safety laws, regulations, and related knowledge. The road driving skills test must be taken according to the highest permitted vehicle class indicated on the driver's license. 2. Handling of point deductions during the probationary period: For drivers holding licenses for large buses, tractors, city buses, medium-sized buses, or large trucks, if 6 or more points (but less than 12) are deducted during the one-year probationary period, the probationary period is extended by one year. If another 6 or more points (but less than 12) are deducted during the extended probationary period, the probationary driving qualification for the permitted vehicle class will be revoked.

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What grade of engine oil is ACEA C3?

ACEA C3 is the third-highest grade of engine oil in the European automobile manufacturers' testing and certification standards for automotive lubricants. The ACEA C3 standard is higher than the API standard, and ACEA C3 oil is a top-tier low-SAPS lubricant. Lubricants meeting this standard are primarily used in high-performance gasoline and light-duty diesel engines equipped with diesel particulate filters and three-way catalysts, which feature advanced aftertreatment systems. Additional information: Base oil types are as follows: 1. Solvent-refined base oil: contains higher sulfur content and unsaturated hydrocarbons (mainly aromatics); 2. Hydrotreated base oil: has lower sulfur, nitrogen, and aromatic content; 3. Hydroisomerized base oil: not only has low sulfur and aromatic content but also a very high viscosity index.

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How many cylinders does the BMW 5 Series have?

What does 4A mean in four-wheel drive vehicles?

How to Conduct the First-Year Inspection for a New Car?

What does engine net power mean?

Should You Press the Clutch or Brake First in the Driving Test (Subject 3)?

Does a B2 license require an exam after being deducted 6 points?

What grade of engine oil is ACEA C3?

Is the Articulated Boom Lift Considered Special Equipment?

Do Cars in Hong Kong Drive on the Left or Right?

What License is Required for a Sedan?

Can I directly upgrade from a C1 to an A2 driver's license now?