Why doesn't the fan turn on when the car's AC is turned on?

How many brake pads per tire?

Each tire requires 2 brake pads, meaning a total of 8 brake pads are needed per vehicle. Below are the replacement criteria for brake pads: 1. Mileage: Under normal driving conditions, front brake pads should be replaced approximately every 30,000-50,000 kilometers, while rear brake pads should be replaced every 60,000-100,000 kilometers. Once severe wear is detected, immediate replacement is necessary. 2. Wear level: Typically, new brake pads are about 1.5 centimeters thick. If the wear reaches one-third of the original thickness (less than 5 millimeters), it is recommended to replace them promptly. If a metallic scraping sound is heard during braking, this may indicate that the brake pads have worn down to their minimum thickness, causing the limit indicators on both sides of the pads to contact and scrape against the brake disc, producing unusual noises—this requires immediate replacement. If you notice that the brake pedal feels lighter than usual, or if braking becomes difficult or ineffective, it indicates severe wear and insufficient thickness of the brake pads, necessitating prompt replacement.

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Why does the idle speed increase when the air conditioner is turned on?

When the air conditioner is turned on, the engine requires additional power to drive the compressor, increasing fuel injection to supplement power, which results in a higher idle speed. Below is an introduction to car air conditioner maintenance: 1. Do not arbitrarily adjust the air outlet direction: When using the air conditioner, not paying attention to adjusting the direction of the air flow is not conducive to achieving the best effect of the air conditioner. According to the principle that cold air sinks and hot air rises, the correct approach should be to point the air outlet upward when cooling and downward when heating. 2. Regularly start the air conditioner in winter: Not using the air conditioner for a long time can cause its rubber seals to age, and the lubricating oil on the internal components will dry out. Regularly starting the air conditioner allows the components to be lubricated, maintaining good condition. Therefore, it is best to start the air conditioner once a week in winter. 3. Avoid using the air conditioner for too long each time: Keeping the air conditioner on for a long time after getting in the car can cause excessive pressure on the condenser, which can damage the cooling system. Therefore, it is advisable not to use the air conditioner for too long each time. If the temperature inside the car has reached a comfortable level, you can turn off the air conditioner and turn it on again after a while. 4. Ventilate and cool down before driving in summer, then switch to internal circulation: When you first enter the car, you should open the windows for ventilation and turn on the external circulation to expel the hot air. After the temperature inside the car drops, switch to internal circulation.

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Can a Manual Transmission License Drive an Automatic Transmission Car?

Manual transmission license holders are permitted to drive automatic transmission vehicles. The C1 driver's license authorizes the operation of small and micro passenger vehicles, as well as light and micro cargo vehicles, light, small, and micro special-purpose vehicles. Other vehicle types authorized under C1 include C2, C3, and C4. Below are specific details about driver's licenses: 1. Classification: The Ministry of Public Security officially issued the "Motor Vehicle Driver's License Business Work Standards," introducing a graded system for motor vehicle driver's licenses, dividing them into 15 levels: A1, A2, A3, B1, B2, C1, C2, C3, C4, D, E, F, M, N, and P. 2. Renewal Regulations: If a motor vehicle driver does not accumulate 12 penalty points in any scoring cycle during the six-year validity period of the driver's license, they can renew it for a ten-year validity period. If they do not accumulate 12 penalty points in any scoring cycle during the ten-year validity period, they can renew it for a long-term valid driver's license. 3. Content: The motor vehicle driver's license records the holder's ID number, name, gender, date of birth, permanent address, nationality, authorized (learned) vehicle type code, initial issuance date, validity period, and management records, along with the issuing authority's seal, file number, and the holder's photo. The design of the motor vehicle driver's license is stipulated by the Ministry of Public Security.

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How many questions are there in Subject 1 of the driving test?

There are 100 questions in Subject 1 of the driving license test. According to the "Regulations on the Application and Use of Motor Vehicle Driving Licenses," the questions are divided into single-choice and true/false questions, with each question worth 1 point, totaling 100 points. If 11 questions are answered incorrectly during the test, the system will automatically submit the test and end the exam. Subject 1, also known as the theoretical test or driver theory test, is part of the motor vehicle driving license assessment. The test content includes driving theory basics, road safety laws and regulations, local regulations, and related knowledge. The test is conducted on a computer, with a time limit of 45 minutes. The content of Subject 1 includes: driving license and motor vehicle management regulations; road traffic conditions and regulations; road traffic safety violations and penalties; road traffic accident handling regulations; basic knowledge of motor vehicles; local regulations; knowledge of braking systems and safety devices for large and medium-sized passenger and freight vehicles; specialized knowledge for wheeled self-propelled machinery, trams, and trolleybuses. Notes for Subject 1 test: Candidates should pay attention to their attire, no slippers are allowed, electronic devices and bags are not permitted in the examination room, and they must bring their ID card and queue to enter the waiting hall. Observe the precautions and procedures on the large screen, and store personal belongings in the locker before entering the examination room. In the examination room, the identity verification station will assign a seat. After finding the seat, start the test, ensuring the camera is aligned with you and adhering to exam discipline. If you fail the first time, there is a retake opportunity on the same day. If you fail again, you must pay to reschedule. After the test, queue to collect the score report and sign it; unsigned reports are considered invalid. There is no limit to the number of times you can schedule Subject 1. Each subject can be taken once, and if you fail, you can retake it once. If you do not take the retest or fail the retest, the current test session ends, and the applicant must reschedule the exam. For Subject 2 and Subject 3, there are only 5 attempts. Subject 2 and Subject 3 tests must be scheduled 10 days later. If you fail the Subject 3 safe and civilized driving knowledge test, the passed road driving skills test scores remain valid. There are 3 subjects in the driving test: Subject 1, Subject 2, and Subject 3. Subject 1 refers to the road traffic safety laws, regulations, and related knowledge test; Subject 2 refers to the field driving skills test; Subject 3 is divided into two parts: road driving skills and safe and civilized driving knowledge test. The safe and civilized driving knowledge test is conducted after Subject 3, so it is commonly referred to as Subject 4. However, in official terms (i.e., the Ministry of Public Security Order No. 123), there is no such term as Subject 4.

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How many days do I have to wait to reschedule if I fail the Subject 1 test?

You need to wait 10 days to reschedule the test. According to the "Regulations on the Application and Use of Motor Vehicle Driving Licenses", if you fail the first attempt of the Subject 1 test on the same day, you can take a second free retest. If you fail the second attempt, the Subject 1 test will be terminated. Subject 1, also known as the theoretical driving test, is part of the motor vehicle driving license assessment. The test content includes driving theory basics, road safety laws and regulations, local regulations, and other related knowledge. The test is computer-based with a time limit of 45 minutes. A passing score for Subject 1 is 90 out of 100, with the test consisting of 100 questions, including single-choice and true/false questions, each worth 1 point. If you answer 11 questions incorrectly, the system will automatically submit the test and end the session. Subject 1 test content includes: driving license and motor vehicle management regulations; road traffic conditions and regulations; road traffic safety violations and penalties; road traffic accident handling regulations; basic knowledge of motor vehicles; local regulations; knowledge of braking systems and safety devices for large and medium-sized passenger and freight vehicles; specialized knowledge for wheeled self-propelled machinery, trams, and trolleybuses. Subject 1 test precautions: Candidates should dress appropriately (no slippers), and electronic devices and bags are not allowed in the test room. Bring your ID card and queue to enter the waiting hall. Observe the precautions and procedures on the large screen, and store personal belongings in lockers before entering the test room. Upon entering, verify your identity at the assigned seat and begin the test. Ensure the camera is aligned with you and follow test discipline. If you fail the first attempt, you can retake the test the same day. If you fail again, you must pay to reschedule. After the test, queue to collect your score report and sign it; unsigned reports are invalid. There is no limit to the number of times you can reschedule the Subject 1 test. Each subject can be taken once, with one retest allowed if you fail. If you skip the retest or fail it, the test session is terminated, and you must reschedule. For Subject 2 and Subject 3, you have only 5 attempts. Subject 2 and Subject 3 tests can be rescheduled after 10 days. If you fail the Subject 3 safe driving knowledge test, your previously passed road driving skills test results remain valid. The driving test consists of 3 subjects: Subject 1, Subject 2, and Subject 3. Subject 1 refers to the road traffic safety laws, regulations, and related knowledge test; Subject 2 refers to the field driving skills test; Subject 3 is divided into two parts: road driving skills and safe driving knowledge test. The safe driving knowledge test is conducted after Subject 3, so it is commonly referred to as Subject 4, although the official term (under the Ministry of Public Security Order No. 123) does not include "Subject 4."

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What are the symptoms of an intake manifold flap failure?

Common symptoms of intake manifold flap failure: 1. Engine shaking during cold starts; 2. EPC light and exhaust emission light warnings during driving. The following is an introduction to the intake manifold: 1. Definition: For carburetor or throttle body fuel injection engines, the intake manifold refers to the intake pipe from the carburetor or throttle body to the cylinder head intake port. 2. Function: The intake manifold distributes the air-fuel mixture from the carburetor or throttle body to each cylinder's intake port. For port fuel injection engines or diesel engines, the intake manifold's function is solely to distribute clean air to each cylinder's intake port.

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Why doesn't the fan turn on when the car's AC is turned on?

How many brake pads per tire?

Why does the idle speed increase when the air conditioner is turned on?

Can a Manual Transmission License Drive an Automatic Transmission Car?

How many questions are there in Subject 1 of the driving test?

How many days do I have to wait to reschedule if I fail the Subject 1 test?

What are the symptoms of an intake manifold flap failure?

What to Do When the Fuel Tank Won't Open?

What is the fuel consumption of the Bestune T55?

What are the effects of different tire sizes on a car?

Why can Lynk & Co only use 95 octane gasoline?