What is the battery model used in the Roewe 350?

Why does a new car feel bumpy when driving?

The reasons why a new car feels bumpy when driving are as follows: Suspension system failure: In the suspension system, the absorption of bumps mainly relies on springs, while the hydraulic shock absorber's role is to reduce the number of repeated extensions when the spring absorbs vibrations, thereby greatly improving the vehicle's smoothness. When the hydraulic shock absorber fails, the repeated extension of the spring will not be suppressed, causing the vehicle to bounce up and down and resulting in a bumpy feeling. Oil leakage and pressure loss in the shock absorber, dust accumulation increasing resistance, and deformation of the shock absorber rod can all lead to hydraulic shock absorber failure. Tire imbalance: A tire is usually composed of a steel rim and a rubber tire. Due to material and processing reasons, the mass of the steel rim and rubber tire is not uniform, which can cause severe shaking when rotating at high speeds, resulting in a bumpy feeling. Incorrect wheel alignment: Wheel alignment refers to the toe angle, camber angle, as well as the caster angle and kingpin inclination angle of the wheels. When a new car leaves the factory, these angles are already set. However, as the mileage increases and the suspension is repeatedly stressed, these angles can change slightly. When these angles change, the tire's contact surface and the vehicle's thrust line may also change, leading to a bumpy feeling when driving on flat roads.

1

Share

How to Handle Emergencies on the Highway?

Here's how to handle emergencies on the highway: 1. Situation One: Tire Blowout: If a tire suddenly blows out while driving on the highway, especially a front tire, it can easily cause the vehicle to lose control and overturn. When a tire blows out, the vehicle body quickly tilts, and the steering wheel turns sharply toward the side of the blown-out tire. At this point, the driver must remain calm and avoid emergency braking. Instead, they should firmly control the steering wheel, release the accelerator pedal, try to keep the vehicle moving straight forward, and quickly shift to a lower gear to use engine braking to slow down the vehicle. Before engine braking effectively controls the speed, avoid risky braking to stop, as this could cause the vehicle to skid sideways and lead to greater danger. If the front tire blowout has already caused steering issues, the driver should not overcorrect. Instead, they should lightly press the brake pedal while maintaining control of the direction to slow the vehicle gradually. 2. Situation Two: Loss of Steering Control: If the steering mechanism suddenly fails, making it impossible for the driver to control the direction, the consequences can be extremely dangerous. In case of steering failure, stay calm, assess the severity of the situation, and slow down as quickly as possible. While applying braking measures, ensure to communicate the danger to other vehicles and pedestrians on the road to alert them to avoid the vehicle. At higher speeds, avoid emergency braking to reduce speed, as this can cause the vehicle to skid or even overturn.

6

0

Share

What are the causes of engine shaking in a car?

Engine shaking can be attributed to the following reasons: Aging or loosening of engine mounts: Engine mounts are rubber blocks placed between the engine and the frame. Their purpose is to reduce vibration and provide cushioning during engine operation, as well as to secure the engine in place. Once these mounts age or become loose, engine shaking becomes noticeably more pronounced. Engine misfire: An engine misfire occurs when one or more cylinders fail to function properly. Common symptoms include intermittent exhaust flow, severe shaking of the exhaust pipe, and noticeable engine vibration, sometimes accompanied by a sputtering sound. This is often related to faulty ignition coils. Engine carbon buildup: Carbon deposits can accumulate in various parts of the engine, such as the cylinders, throttle body, spark plugs, and intake manifold. These areas are critical to the engine's power output. Excessive carbon buildup reduces ignition energy and intake efficiency, ultimately leading to engine shaking and sluggish acceleration. Fuel system malfunction: Using an incompatible fuel grade can reduce the car's power output and performance. Alternatively, blockages in the fuel tank vent, fuel tank switch, fuel filter, or fuel lines between the tank and carburetor can restrict fuel supply, resulting in a lean air-fuel mixture and engine shaking.

6

2

Share

How many days after registration can I schedule the Subject 1 exam?

After successfully enrolling in a driving school, you can schedule the Subject 1 exam in about 10 days. Before scheduling, you should review the Subject 1 exam materials and practice test questions. Enrollment in the driving school is only preliminary. After enrollment, the driving school submits the documents to the vehicle management office. Upon approval, the vehicle management office will issue a serial number, which confirms successful registration. Once registered, you can proceed to schedule the Subject 1 exam. According to the "Regulations on the Application and Use of Motor Vehicle Driver's Licenses," Subject 1 consists of 100 questions, including single-choice and true/false questions, with each question worth 1 point. If you answer 11 questions incorrectly during the exam, the system will automatically submit the test and end the exam. Subject 1 exam content: Regulations on driver's licenses and motor vehicle management; 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 exam precautions: During the exam, students should dress appropriately—no slippers are allowed. Electronic devices and bags are prohibited in the exam room. Bring your ID card and queue to enter the waiting hall. Observe the instructions and procedures on the large screen. Before entering the exam room, store personal belongings in a locker. In the exam room, verify your identity at the assigned station, then begin the test. Ensure the camera is aligned with you and follow exam rules. If you fail the first attempt, a retake is available on the same day. If you fail again, you must pay to reschedule. After the exam, queue to collect your score report and sign it. Failure to sign renders the result invalid. There is no limit to the number of times you can schedule the Subject 1 exam. Each subject allows one exam attempt, with one retake if you fail. If you skip the retake or fail it, the exam process ends, and you must reschedule. In contrast, Subject 2 and Subject 3 allow only five exam attempts each, and rescheduling must occur at least 10 days later. If you fail the Subject 3 safety and civilized driving knowledge test, your previously passed road driving skills test results remain valid. The driving test consists of three subjects: Subject 1, Subject 2, and Subject 3. Subject 1 covers road traffic safety laws, regulations, and related knowledge. Subject 2 tests field driving skills. Subject 3 includes two components: road driving skills and safety and civilized driving knowledge. The safety and civilized driving knowledge test is conducted after Subject 3, so it is commonly referred to as Subject 4. However, the official terminology (as per Ministry of Public Security Order No. 123) does not include "Subject 4."

10

4

Share

Can You Make a U-Turn at a Red Light in a Dedicated U-Turn Lane?

Whether you can make a U-turn at a red light in a dedicated U-turn lane depends on the situation. If the U-turn does not cross the stop line of the lane and does not affect the normal driving of other vehicles, you can make a U-turn at a red light. However, if the U-turn requires crossing the stop line of the left-turn or U-turn lane, you must follow the traffic light instructions. Conditions under which U-turns are allowed: Presence of U-turn signals or signs: If there is a U-turn signal at the intersection, you can make a U-turn when the U-turn signal is green. If there is a U-turn sign at the intersection or a U-turn indicator on the lane, you can make a U-turn as long as you ensure the safety of yourself and others. No U-turn signs but left turns are allowed (no prohibition of U-turn signs): At intersections where left turns are allowed and there are no signs or markings prohibiting U-turns, you can make a U-turn. Note that vehicles must proceed according to the left-turn lane signal without affecting the normal driving of other vehicles. If you want to make a U-turn at an intersection with a left-turn waiting area, you can first enter the waiting area when the straight-ahead light is green and then make the U-turn when the left-turn light turns green. U-turns allowed at dashed lines: U-turns are allowed at both white and yellow dashed lines. For double yellow lines with one solid and one dashed, check whether your side is the dashed line. If it is, you can make a U-turn safely. If it is a solid line, U-turns are not allowed. At intersections with double yellow lines (one solid, one dashed), you can make a U-turn on the dashed line side, but you must not cross the stop line ahead. U-turns allowed at yellow grid lines: Parking is prohibited in yellow grid areas, but as long as there is no central barrier, you can make a U-turn here after yielding to normally moving vehicles. U-turns allowed on the dashed side of a green belt: When the front of the green belt is a dashed line, vehicles on that side can make a U-turn from there. When the front of the green belt is a solid line, vehicles must follow the traffic signal, cross the pedestrian crossing before making a U-turn, and are prohibited from crossing the solid line or pedestrian crossing to make a U-turn.

15

2

Share

What is the difference between driving license test subjects 1 and 4?

The main differences between subject 1 and subject 4 are: number of test questions, question types, content distribution, and focus areas. The basis comes from the "Regulations on the Application and Use of Motor Vehicle Driving Licenses". Number of test questions: The most obvious difference between subject 1 and subject 4 is the number of test questions. Subject 1 has 100 questions, while subject 4 only has 50 questions. In subject 1, the test automatically submits when more than 10 questions are answered incorrectly, while in subject 4, it submits when more than 6 questions are wrong. Question types: Subject 1 consists of 100 questions, each worth 1 point, with a total test time of 45 minutes. The question types are true/false and single-choice questions, with a full score of 100. Subject 4 consists of 50 questions, each worth 2 points, with a test time of 45 minutes. The questions are mainly in the form of case studies, pictures, and animations, with question types including true/false, single-choice, and multiple-choice questions, also with a full score of 100. Focus areas: Subject 1 mainly assesses basic knowledge of road driving, while subject 4 focuses on safe and civilized driving knowledge. It can be understood this way: subject 1 tests how to drive, while subject 4 tests how to drive safely. Although the difference is just two words ("safe"), the focus is completely different. Content distribution: Subject 1 test content composition: driving license and motor vehicle management regulations account for 20%; road traffic conditions and regulations account for 25%; road traffic safety violations and penalties account for 25%; road traffic accident handling regulations account for 10%; basic knowledge of motor vehicles accounts for 10%; local regulations account for 10%. Subject 4 test content composition: safe driving knowledge accounts for 20%; civilized driving knowledge accounts for 18%; comprehensive application of road traffic signals in traffic scenarios accounts for 8%; safe driving knowledge under adverse weather and complex road conditions accounts for 16%; emergency avoidance knowledge accounts for 12%; typical accident case analysis accounts for 6%; traffic accident rescue and common hazardous chemical handling knowledge accounts for 10%; local test questions account for 10%. There is no limit to the number of attempts for driving test subjects 1 and 4. If the test is failed, it can be rescheduled. Each test appointment has two attempts. If both attempts fail, the test must be retaken until it is passed. Both subject 1 and subject 4 are theoretical tests and are part of the motor vehicle driving license assessment. 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, referring to the 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 mention of subject 4.

11

0

Share

What is the battery model used in the Roewe 350?

Why does a new car feel bumpy when driving?

How to Handle Emergencies on the Highway?

What are the causes of engine shaking in a car?

How many days after registration can I schedule the Subject 1 exam?

Can You Make a U-Turn at a Red Light in a Dedicated U-Turn Lane?

What is the difference between driving license test subjects 1 and 4?

Can I make an appointment immediately after canceling Subject 1?

Is 92 Octane Gasoline Lead-Free?

What Causes Occasional Gasoline Smell When Using Air Conditioning in the Car?

What does a displacement of 500 mean?