What are the differences between the facelifted and non-facelifted BMW 1 Series?

What is the Difference Between Minor and Major Maintenance?

Minor maintenance generally refers to the routine maintenance tasks performed at the intervals or mileage specified by the manufacturer to ensure vehicle performance. It mainly includes changing the engine oil and oil filter. Major maintenance, on the other hand, involves changing the engine oil, oil filter, air filter, and fuel filter as part of the routine maintenance schedule set by the manufacturer. Minor maintenance includes the following items: 1. Engine oil: This is the lubricant for engine operation. It lubricates, cleans, cools, seals, and reduces friction in the engine. It plays a crucial role in minimizing wear on engine components and extending their service life. 2. Oil filter: This component filters the engine oil. Engine oil contains certain amounts of gum, impurities, moisture, and additives. During engine operation, metal particles from component friction, airborne impurities, and oil oxidation products are all filtered by the oil filter. If the oil is not filtered before circulating through the system, it can adversely affect engine performance and longevity. Major maintenance includes the following items in addition to changing the engine oil and oil filter: 1. Air filter: The engine inhales a large amount of air during operation. If the air is not filtered, dust in the air can accelerate wear on the piston assembly and cylinder. Larger particles entering between the piston and cylinder can even cause severe "cylinder scoring." The air filter's role is to remove dust and particles from the air, ensuring that clean and sufficient air enters the cylinder. 2. Fuel filter: The fuel filter provides clean fuel to the engine by filtering out moisture and impurities from the gasoline. This optimizes engine performance and offers the best protection for the engine. 3. Typically, during vehicle maintenance, technicians will perform additional inspections based on the vehicle's condition and may include other maintenance tasks, such as inspection and cleaning of engine-related systems, tire alignment checks, and inspection of various fastening components.

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Is Car Insurance Valid Without License Plates?

Car insurance remains valid even without license plates, as there is no direct correlation between license plates and insurance validity. Here are the detailed explanations: 1. Currently, insurance policies take effect from midnight on the day following the policyholder's purchase. 2. However, it's important to note that while the absence of license plates doesn't affect insurance validity, it directly impacts insurance claims. 3. According to relevant regulations, insured motor vehicles will not be eligible for insurance claims under any of the following circumstances: (1) The insured vehicle's registration certificate or license plates are revoked at the time of the insured incident, or the vehicle fails to undergo mandatory inspection or fails the inspection; (2) During periods when the vehicle is seized, confiscated, impounded, or requisitioned by the government; (3) During competitions, tests, or when undergoing maintenance, servicing, or modifications at commercial establishments; (4) When the insured party or permitted driver intentionally or through gross negligence allows the insured vehicle to be used for criminal activities.

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What are the types of automotive transmissions?

Automotive transmissions can be categorized as follows: 1. AT Transmission: This stands for Automatic Transmission, which is the most widely used automatic transmission technology in the domestic market. The greatest advantage of AT technology is that it is the most mature and stable among the three major automatic transmissions. The biggest drawback of AT transmissions is the noticeable gear shift shock. 2. CVT Transmission: CVT technology, also known as Continuously Variable Transmission, can be understood as a transmission without fixed gear ratios, unlike other transmissions that require shifting between gears. Since CVT can achieve continuous changes in the transmission ratio, the driving process is very smooth, without any gear shift shock, resulting in minimal power loss and naturally low fuel consumption. 3. Dual-Clutch Transmission (DCT): Dual-Clutch Transmission is a relatively new transmission technology that has entered the household vehicle market in recent years. Compared to AT, it offers shorter shift times and smaller power losses. Currently, DCT mainly comes in two types: dry and wet. However, dry DCT is prone to wear and is not yet suitable for the congested urban traffic conditions in China, as frequent traffic jams can accelerate wear and shorten its lifespan.

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What is the function of AOFF in a car?

The "AOFF" button in the car is the auto start-stop switch, used to control the engine's auto start-stop function. When the vehicle needs to temporarily stop during driving, the engine will automatically shut off, and when it's time to move forward again, the system will automatically restart the engine. Below is a detailed explanation: 1. After enabling this function, while driving, simply pressing the brake pedal will cause the engine to automatically shut off after the vehicle comes to a complete stop for about two seconds. Keeping the brake pedal pressed will maintain the engine in the off state. 2. As soon as the brake is released or the steering wheel is turned, the engine will immediately restart automatically, and the car can be driven by directly pressing the accelerator pedal. 3. However, in some cars, when this function is used to start the engine, the vibration may be too strong, leading to a poor passenger experience. Additionally, frequent use of this function in congested areas with frequent stops can cause wear and tear on the engine. 4. Turning this function on or off will be indicated by a light on the dashboard.

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What Causes the Steering Wheel to Squeak When Turning?

The reasons for a squeaking sound when turning the steering wheel are as follows: 1. If the noise occurs when turning the wheel while stationary, it is likely due to the friction between the spring steel plate of the horn wire transmission and the steering wheel. The sound usually comes from inside the car and is a rustling metal friction noise. The solution is to apply some lubricant to the contact area between the spring steel plate and the steering wheel. 2. If the noise occurs while driving, the sound usually comes from the front suspension outside the car. 3. If the sound is a sharp squeak, it is likely caused by excessive or insufficient front wheel toe-in, resulting in tire scrubbing due to non-parallel turning of the front wheels. 4. If the sound is a clicking or rattling noise, it is probably due to excessive wear of the car's half-shaft CV joint. Typically, a noise when turning left indicates damage to the right-side CV joint.

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What does the automatic M gear mean?

M gear is the manual mode of an automatic transmission, meaning it enters the manual shifting mode. Here are the specific details: 1. Generally, transmissions with an M gear will also have a '+' and '-' sign next to it. Shifting is done by pushing the gear lever forward or backward or using the steering wheel paddle shifters. However, unlike a manual transmission, there is no need to release the accelerator when shifting gears; you can directly increase or decrease the gear. 2. On an automatic transmission, P stands for 'Park'; R stands for 'Reverse'; N stands for 'Neutral'; D is the gear commonly used when driving, which is 'Drive'.

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What are the differences between the facelifted and non-facelifted BMW 1 Series?

What is the Difference Between Minor and Major Maintenance?

Is Car Insurance Valid Without License Plates?

What are the types of automotive transmissions?

What is the function of AOFF in a car?

What Causes the Steering Wheel to Squeak When Turning?

What does the automatic M gear mean?

Can you apply for a driver's license under the age of 18?

What happens if too much engine oil is added?

How to Properly Start and Park an Automatic Transmission Car?

Why is there no air coming out in the heating mode of the air conditioner?