How to reset the headrest of Mercedes-Benz E260?

How Long is the Driving License Subject One Exam?

The exam has a time limit of 45 minutes. According to the "Regulations on the Application and Use of Motor Vehicle Driving Licenses," candidates can take the Subject One exam twice on the same day. If they fail the first attempt, they can retake it for free. If they fail the second attempt, the Subject One exam is terminated, and they must wait ten days before rescheduling. Subject One, also known as the theoretical driving test or driver's theory exam, is part of the motor vehicle driving license assessment. The exam covers driving theory basics, road safety laws and regulations, local regulations, and related knowledge. The test is conducted on a computer. The Subject One exam consists of 100 questions, including single-choice and true/false questions, with each question worth 1 point, totaling 100 points. If a candidate answers 11 questions incorrectly during the exam, the system will automatically submit the test and end the session. Subject One exam content: Driving license and motor vehicle management regulations; road traffic conditions and rules; 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 One exam precautions: Candidates should dress appropriately—no slippers 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 screen, and store personal belongings in lockers before entering the exam room. At the identity verification station, you will be assigned a seat. Once seated, begin the exam. Ensure the camera is aligned with you and follow exam discipline. If you fail the first attempt, a retake is available the same day. If you fail again, you must pay to reschedule. After the exam, 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 One exam. Each subject can be taken once, with one retake allowed if you fail. If you skip the retake or fail it, the exam is terminated, and you must reschedule. In contrast, Subjects Two and Three allow only five attempts. Subjects Two and Three can be rescheduled after ten days. If you fail the Subject Three safe driving knowledge test, your previously passed road driving skills test results remain valid. The driving test consists of three subjects: Subject One, Subject Two, and Subject Three. Subject One covers traffic safety laws, regulations, and related knowledge. Subject Two tests field driving skills. Subject Three includes two parts: road driving skills and safe driving knowledge. The safe driving knowledge test is conducted after Subject Three, so it is commonly referred to as Subject Four, though this term is not officially recognized in the regulations (i.e., the Ministry of Public Security's Order No. 123).

15

4

Share

What to Do If the Temporary License Plate Expires?

If the formal license plate has not been processed yet, you need to apply for another temporary license plate. New cars cannot use temporary license plates for more than 15 days, and the owner should promptly apply for a formal license plate from the vehicle management authority. Each vehicle can apply for a maximum of 3 temporary license plates, which means the longest duration should not exceed 45 days. Below is the relevant information about temporary license plates: 1. Required application materials. (1) Original and photocopy of the vehicle qualification certificate (imported vehicles require import certificates); (2) Original and photocopy of the third copy of the compulsory traffic insurance; (3) Original and photocopy of the first copy of the car purchase invoice; (4) Original and photocopy of the owner's identity proof (if processed by an agent, the agent's original ID and photocopy are required); (5) Non-local owners need the original and photocopy of the temporary residence permit. 2. Relevant precautions. Driving a vehicle with an expired temporary license plate will result in penalties such as vehicle impoundment, fines, and a 12-point deduction. If a traffic accident occurs while driving with an expired or counterfeit temporary license plate, the insurance claim may not be processed smoothly.

14

0

Share

Can You Continue Driving When the ABS Warning Light Is On?

When the ABS warning light is on, it is recommended not to continue driving, as the illuminated ABS light indicates a malfunction in the vehicle's anti-lock braking system. During emergency braking, if the wheels lock up, the vehicle may lose control and skid, making it difficult for the driver to slow down or adjust the vehicle's trajectory, posing significant safety risks. The ABS warning light can illuminate under various conditions, each with different causes and solutions, as detailed below: Condition 1: ABS warning light stays on continuously (most common). Cause 1: The ABS wheel speed sensor's sensing area is covered by dirt, mud, or other contaminants, affecting the sensor's ability to detect the corresponding speed signal. This prevents the ABS control unit from determining the vehicle's speed or the wheel's slip rate, thus failing to issue appropriate commands to regulate braking. Solution: Clean the dirt from the wheel speed sensor and adjust the gap between the sensor and the signal ring to restore normal function. Cause 2: Poor signal transmission due to loose connections in the system wiring or faulty ABS relay contacts. Solution: Inspect wiring connections and reconnect any loose parts. Condition 2: ABS warning light intermittently illuminates but turns off during acceleration. Cause: When multiple electrical components are in use, the battery voltage drops below 10.5V. As the engine speed increases, the voltage rises, and the ABS light turns off. This may also occur due to insufficient power supply voltage to the ABS system, such as poor terminal contact or grounding issues. Solution: Check the battery's specific gravity, inspect the charging system, and examine the power supply (e.g., voltage relay or poor power contact). Condition 3: ABS warning light remains on after engine startup and only turns off when the engine is turned off (IGFF). Cause: Poor grounding of the ABS hydraulic valve body; loose wiring connections at the ABS hydraulic valve body; or a faulty ABS control unit. Solution: Loosen and retighten the grounding screw of the hydraulic valve body, cleaning the contact surface if necessary. Check for enlarged connector gaps and replace the ABS or ABS/ASR control unit if needed. Condition 4: ABS warning light illuminates during high-speed driving. Cause: At high speeds, the ABS control unit detects a significant discrepancy between the rear and front wheel speed signals. This may also occur due to incorrect tire or wheel rim specifications. Solution: Refer to the vehicle's tire and wheel rim specifications, as indicated on the fuel tank cap label. Condition 5: ABS warning light intermittently illuminates. Cause: Improper adjustment of the brake light switch; poor internal contact in the brake light. Solution: With the engine running, press the brake pedal and push the brake switch linkage down with your finger until it bottoms out. Release the brake pedal to complete the self-setting process. Replace the brake light switch if necessary.

14

1

Share

Do You Need to Wait for a Red Light to Make a U-Turn?

If the gap is marked with a dashed line, making a U-turn is not affected by traffic signals and does not require crossing the pedestrian crossing. You can make a U-turn directly as long as it does not interfere with other normally moving vehicles and ensures your own safety. If the gap is marked with a solid line, then making a U-turn requires crossing the pedestrian crossing and is subject to traffic signals. Note that U-turns are not allowed on pedestrian crossings. Violations will result in a 3-point penalty and a fine according to Article 49 of the "Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China." If you need to cross the pedestrian crossing to make a U-turn, you must yield to pedestrians: When pedestrians are walking on the right side of the pedestrian crossing and have not reached the centerline of the road, vehicles on the left side of the road must slow down and allow them to pass safely. When pedestrians are waiting outside the boundary line of the motorized and non-motorized lanes and have not entered the road, vehicles must slow down and allow them to pass safely. If pedestrians cross the boundary line between motorized and non-motorized lanes, vehicles that do not stop are committing a violation and will be penalized. When pedestrians enter Lane A of the motorized lane along the pedestrian crossing, vehicles in Lane B must slow down and allow them to pass safely. If vehicles in Lane A do not stop, it is a violation and will be penalized. If pedestrians waiting at the centerline of the road do not enter the motorized lane, vehicles that do not stop are committing a violation and will be penalized. If pedestrians cross the centerline of the road and enter the lane, vehicles that do not stop are committing a violation and will be penalized. When pedestrians are waiting in the median area separated by greenery, vehicles must slow down and allow them to pass safely. Scenarios where U-turns are allowed: If there is a U-turn sign at the intersection, you can make a U-turn. If there is a U-turn signal light, follow its instructions. If there is no signal light, make a U-turn without interfering with other vehicles or pedestrians. If there is no explicit prohibition of U-turns or left turns at the intersection, you can make a U-turn. "No explicit prohibition" means there are no "No U-Turn" or "No Left Turn" signs, and the centerline is not solid. U-turns are also allowed on yellow grid lines. Yellow grid lines indicate no-stopping zones at intersections prone to congestion due to temporary stops, entrances to important facilities, or other designated areas. Stopping on yellow grid lines (including waiting for traffic lights) is a violation. However, U-turns are allowed on yellow grid lines if there is no median barrier, effectively making it a "U-turn permitted" zone. If there is a U-turn signal light at the intersection, you must follow it—only proceed on green. If "No Left Turn" and "U-Turn Permitted" signs appear together, U-turns are allowed but left turns are prohibited. Note that "No U-Turn" is not the same as "No Left Turn." Precautions when making a U-turn at an intersection: Check the road markings. If they are solid lines, U-turns are prohibited under any circumstances. Continue driving to find a suitable spot. If there is a "No Left Turn" sign, even if there is no explicit "No U-Turn" sign, U-turns are not allowed at that intersection because U-turns inherently involve a left turn. U-turns must be made from the innermost left-turn lane. If you are in the second left-turn lane, U-turns are not allowed at that intersection. Always yield to oncoming traffic before making a U-turn. Failure to do so will make you fully liable for any accidents. Near the intersection stop line, lanes usually have guiding arrows. The leftmost lane is not always a left-turn lane. If it has a straight arrow, U-turns are prohibited even if there are no explicit "No U-Turn" signs.

6

1

Share

How to Deal with Emission System Malfunctions?

Unburned or incompletely burned fuel, engine knocking, excessively high engine temperatures, require cleaning of the throttle body. Poor fuel quality leading to unclean engine cylinders and accumulated carbon deposits necessitates engine carbon deposit cleaning. When ambient temperatures drop sharply, the computer's temperature correction may cause the pollution warning light to illuminate during startup, which will stabilize once the temperature drops to a certain level.

1

Share

How to Set Up Volvo Rearview Camera?

Click the settings icon on the central control screen, select factory settings, and turn off the 360-degree panoramic switch. Tap the screen to adjust brightness and contrast for the clearest view. Clean the camera with a dry cloth, check for moisture, and use a hot air blower to dry the camera for a few minutes. If necessary, seal it with glue.

15

0

Share

How to reset the headrest of Mercedes-Benz E260?

How Long is the Driving License Subject One Exam?

What to Do If the Temporary License Plate Expires?

Can You Continue Driving When the ABS Warning Light Is On?

Do You Need to Wait for a Red Light to Make a U-Turn?

How to Deal with Emission System Malfunctions?

How to Set Up Volvo Rearview Camera?

What are the dimensions and specifications of the Touareg?

What are the consequences of using 92-octane gasoline in a Golf?

How Long After Drinking Rice Wine Can You Drive?

What does the yellow triangle exclamation mark on the car dashboard indicate?