What are the symptoms of a broken compressor?

What is the A-circle button in an automatic transmission?

Automatic transmission A-circle button is the Auto Hold system. The Auto Hold system is a technological application that enables automatic handbrake functionality while the car is in motion. This technology allows drivers to avoid prolonged braking when the vehicle comes to a stop, and it prevents unnecessary rolling of the vehicle when the automatic electronic parking brake is engaged. Below is an introduction to the Auto Hold system: Principle: The working principle of the Auto Hold system lies in the brake management system controlling the four-wheel brakes through the extended functionality of the electronic parking brake (EPB). In other words, the Auto Hold system is an extension of the electronic parking brake (EPB), controlled by the ESP component. Working process: When the vehicle is temporarily stopped and needs to be restarted within a short period, the parking function is handled by the ESP-controlled brakes. The computer uses a series of sensors to measure the vehicle's levelness and wheel torque, determining any tendency for the vehicle to roll. It then applies an appropriate braking force to the wheels to keep the vehicle stationary.

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Do 7-seater vehicles require annual inspection?

Non-commercial 7-seater vehicles do not require annual inspection within the first six years. This is based on Article 16 of the "Regulations for the Implementation of the Road Traffic Safety Law": Motor vehicles shall undergo safety technical inspections according to the following periods. The documents required for vehicle inspection include the vehicle's registration certificate, valid compulsory insurance policy, the owner's ID card, and all traffic violation records must be cleared in advance. Safety technical inspections shall be conducted within the following periods: Commercial passenger vehicles: once a year within 5 years; once every 6 months after 5 years. Trucks and large/medium non-commercial passenger vehicles: once a year within 10 years; once every 6 months after 10 years. Small/mini non-commercial passenger vehicles: once every 2 years within 6 years; once a year after 6 years; once every 6 months after 15 years. Motorcycles: once every 2 years within 4 years; once a year after 4 years. Tractors and other motor vehicles: once a year. Commercial vehicles must be inspected within the specified period. Additional notes: Trucks and large/medium non-commercial passenger vehicles require inspection once a year within 10 years and once every 6 months after 10 years; motorcycles require inspection once every 2 years within 4 years and once a year after 4 years. According to the "Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China", vehicle inspection mainly includes the following items: Appearance inspection: Mainly checks vehicle lights, body appearance, suspension, sunroof, and tires. It verifies whether the lights are functioning properly, if there are any non-working lights, if the body color has been changed, and if the suspension has been modified. Emission test: Checks whether the vehicle's exhaust emissions meet national standards during high-speed operation. On-site inspection: Primarily examines the vehicle's braking system, headlights, horn, and chassis. Violation check: All traffic violation records must be cleared before the vehicle inspection to pass. Vehicle inspection can be conducted up to 90 days in advance but must not be overdue. According to Article 47, Paragraph 4 of the "Motor Vehicle Registration Management Measures", vehicles that fail to undergo safety technical inspections within the specified period will be issued a warning or fined by the public security traffic management department. The inspection can only proceed after the fine is paid. Consequences of failing to inspect on time include: Vehicles that have not undergone inspection on time are not allowed on the road; driving an uninspected vehicle results in 3 penalty points and a fine; if an uninspected vehicle is involved in a traffic accident, the driver bears full or primary responsibility, and insurance companies will not cover the damages; driving an uninspected vehicle is considered illegal driving and may result in vehicle impoundment.

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Does ETC have to be handled by the vehicle owner?

Non-owners can also apply for ETC. According to the "Implementation Plan for Accelerating the Application Service of Electronic Non-stop Toll Collection on Expressways" issued by the Ministry of Transport, the original valid ID card of the vehicle owner, the original and a copy of the vehicle registration certificate (the page with the most recent annual inspection stamp) are required. For proxy applications, the original valid ID card of the proxy is also needed. If applying for ETC through major bank branches, a corresponding bank debit or credit card must be prepared. Some banks only support ETC binding with credit cards, while others may require freezing a portion of the amount as a deposit when binding with debit cards. Documents required for company vehicles: Introduction letter from the vehicle owner (with official seal); Copy of the organization code certificate or business license (with official seal); Original ID card of the proxy; Original vehicle registration certificate; Vehicle for which ETC is to be applied. ETC billing principle: There will be one or more ETC lanes on the expressway. Through dedicated short-range microwave communication between the vehicle's electronic tag installed on the windshield and the microwave antenna in the ETC lane, and using computer networking technology for backend settlement with the bank, the purpose of paying tolls without stopping at toll stations is achieved. All this is based on the principle of passing first and deducting fees later. Benefits of installing ETC: Time-saving: Eliminates the hassle of waiting in line; Green and eco-friendly: Low-carbon, as vehicles pass through toll stations without stopping, reducing noise and exhaust emissions and minimizing pollution; Cost-saving: Reduces wear and fuel consumption by decreasing the frequency of vehicle starts and brakes; Improved efficiency: Theoretically, ETC lanes can increase vehicle passing efficiency by 2-3 times, making traditional ETC updates faster and more high-tech. Compared to license plate payment, ETC technology is more mature and advantageous. More policy support: The State Council explicitly stated in the "13th Five-Year Plan for the Development of a Modern Comprehensive Transportation System" that "by 2020, the interoperability of transportation cards in key city clusters will be basically achieved, and the proportion of vehicles equipped with ETC will significantly increase." It also set a target in the main indicators of the "13th Five-Year" comprehensive transportation development: "By 2020, the ETC usage rate for road passenger vehicles should reach 50%." More future possibilities: In addition to continuously improving the convenience of ETC installation and usage rates for passenger vehicles, the future will also promote the use of ETC for trucks and explore deep integration of ETC systems with smart transportation directions such as vehicle-to-vehicle communication and vehicle-road coordination, providing comprehensive travel services for vehicle owners. This means more application scenarios will support ETC applications. ETC usage precautions: The ETC transaction sensing range is 8 meters. When encountering a stationary vehicle ahead, maintain a distance of more than 10 meters to prevent automatic fee deduction for the vehicle in front due to ETC device failure or absence. The recognized speed for ETC lane passage is 20 km/h. Excessive speed may prevent reading of vehicle device information and lead to billing failure. Unauthorized removal or movement of the OBU device, or detachment or loosening of the ETC electronic tag, will render the tag invalid. It can be sent to the bank where the ETC card was issued or the highway service office for inspection. Non-deliberate loosening or detachment only requires reactivation. Insufficient balance when using a debit card bound to ETC may cause billing failure. Follow the guidance of on-site staff to use manual MTC lanes for cash or card payments. Excessive windshield thickness may cause poor sensing, especially for vehicles that have had windshield replacements after accidents or modifications to the front windshield.

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Can Temporary License Plates Still Be Used After Official License Plates Arrive?

No. After a new vehicle receives its official license plates, the temporary license plates become invalid regardless of whether they have expired or not. Failure to promptly display the newly issued license plates may result in a 12-point deduction from the driver's license and a fine. The new license plates should be displayed immediately upon receipt. Additional Information: The use of temporary license plates is subject to time limits and regional restrictions. Temporary license plates can be applied for at the local vehicle management office under any of the following conditions: When driving the vehicle from the place of purchase to the place of use, temporary license plates must be applied for at the vehicle management office in the place of purchase; When transferring vehicle registration and after surrendering the official license plates, temporary license plates must be applied for at the local vehicle management office to drive back to the original location; For new vehicles in the local area that have not yet received official license plates but need to be driven to another location for modifications, temporary license plates must be applied for locally. After modifications are completed, temporary license plates must be applied for at the modification location to drive back to the original area; When purchasing a vehicle locally and needing to drive it to another location, temporary license plates must be applied for locally to drive to the other location, and vice versa. When the vehicle registration is not yet finalized and temporary use is required.

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What Causes the ABS Light to Illuminate in a Mercedes-Benz?

There are multiple states in which the ABS light may illuminate, with different causes and solutions for each state, as detailed below: State 1: ABS warning light remains constantly lit (most common). Cause 1: The ABS wheel speed sensor's sensing area is covered by dirt, mud, or other contaminants, affecting its ability to detect the corresponding wheel speed signal. This prevents the ABS control module from determining the vehicle's speed and wheel slip rate, thereby disabling its ability to issue 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 system wiring connections or faulty ABS relay contacts, leading to system malfunction. Solution: Inspect wiring connections and reconnect any loose parts. State 2: ABS warning light intermittently illuminates but turns off during acceleration. Cause: When multiple electrical components are in use, the battery voltage may drop below 10.5V. As engine speed increases, the voltage rises, causing the ABS light to turn off. This can also occur if the ABS system's power supply voltage is too low due to poor terminal contact or grounding issues. Solution: Check the battery's specific gravity, inspect the charging system, and verify the power supply (e.g., voltage relay or poor power contact). State 3: ABS warning light remains lit after engine startup and only turns off when the engine is turned off (IGFF). Cause: Poor grounding connection of the ABS hydraulic valve body; faulty wiring connection of the ABS hydraulic valve body; ABS control module malfunction. Solution: Loosen and retighten the grounding screw of the hydraulic valve body, cleaning the contact surface if necessary; check for enlarged terminal gaps; replace the ABS or ABS/ASR control module. State 4: ABS warning light illuminates during high-speed driving. Cause: The ABS control module detects a significant discrepancy between the rear and front wheel speed signals during high-speed driving; incorrect tire or wheel rim specifications. Solution: Refer to the vehicle's tire and wheel rim specifications, as indicated on the label near the fuel tank cap. State 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 use a finger to push the brake switch linkage all the way down, then release the pedal to complete self-positioning; replace the brake light switch if necessary. If the ABS warning light is illuminated, it is advisable not to continue driving. An 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 skid uncontrollably, preventing the driver from slowing down or adjusting the vehicle's trajectory, posing significant safety risks.

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What does traffic violation code 1638 mean?

Violation code 1638 means: Driving a truck in violation of regulations by carrying passengers. According to the relevant provisions of the "Road Traffic Safety Law of the People's Republic of China", the penalty includes: Demerit points (deduction): 6 points; Fine amount: 500 to 2000 yuan; Other penalties: Detention of the vehicle. Traffic violation codes consist of four to five digits, classified according to the principles of the traffic law. The sequence from left to right is as follows: the first digit is the behavior classification code, the second digit is the demerit points classification code, the third and fourth digits are the sequential code, and the fifth digit indicates the item number. First digit: Behavior classification code, indicating the category in the Road Traffic Law; Second digit: Demerit points classification code, indicating the category of demerit points for the traffic violation; Third, fourth, and fifth digits: Sequential code, indicating the order of the violation within the same behavior category. For example: 13035—"1" indicates a motor vehicle violation, the second digit "3" indicates 3 demerit points, and "035" indicates the fifth item of the third violation under the 3-point deduction category. Behavior classification code violation descriptions: Codes starting with 1 indicate motor vehicle violations, e.g., 1003; Codes starting with 2 indicate non-motor vehicle violations, e.g., 2002; Codes starting with 3 indicate pedestrian or passenger violations, e.g., 3030; Codes starting with 4 indicate highway violations, e.g., 4002; Codes starting with 5 indicate other regulations, e.g., 5005; Codes starting with 7 indicate provincial, autonomous region, or municipal implementation rules, e.g., 7008; Codes starting with 8 indicate local regulations of cities (prefectures, autonomous prefectures, or leagues), e.g., 8606. There are four common ways to check motor vehicle violations: Visit the office lobby of the traffic police branch in your city or county and use the touch query terminal; Log in to the external service website of your city's Public Security Bureau Traffic Management Bureau, find the vehicle violation query section, enter your license plate number and engine number, and click to query; Call the hotline (area code + 114) to inquire; Use the Traffic Management 12123 app (V2.8.1B437 for iOS 15+ or V2.8.1B274 for Android 12+) to check. For the violation of driving a truck while carrying passengers illegally, you can handle it through the Traffic Management app. After logging in, go to the violation processing section, complete the process, and make the payment.

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What are the symptoms of a broken compressor?

What is the A-circle button in an automatic transmission?

Do 7-seater vehicles require annual inspection?

Does ETC have to be handled by the vehicle owner?

Can Temporary License Plates Still Be Used After Official License Plates Arrive?

What Causes the ABS Light to Illuminate in a Mercedes-Benz?

What does traffic violation code 1638 mean?

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