···
Log in / Register

What does Maintenance A and Maintenance B mean?

3 Answers
DelLillian
09/08/25 6:41am
A Maintenance and B Maintenance refer to the service codes for vehicle maintenance. A Maintenance is a minor service, while B Maintenance is a major service. Below are the detailed explanations: 1. A Maintenance: A Maintenance, also known as a minor service, typically refers to the basic maintenance tasks performed at the manufacturer's recommended time or mileage intervals to ensure vehicle performance. This mainly includes changing the engine oil and oil filter. During engine operation, metal friction generates debris, and impurities and moisture from the air mix into the oil. Continuous lubrication and high-temperature working conditions cause the oil itself to degrade and lose effectiveness. Similarly, the oil filter's efficiency diminishes over time, so timely replacement is necessary. 2. B Maintenance: B Maintenance is a major service for the vehicle, performed at the manufacturer's recommended time or mileage. In addition to changing the engine oil and oil filter, it includes replacing the air filter, cabin air filter, brake fluid, transmission fluid, and other items. Therefore, B Maintenance includes A Maintenance, and typically, A and B Maintenance are performed alternately. The selection of major maintenance items can be fully referenced according to the vehicle's maintenance manual.
Was this review help?
19
2
Share
OMolly
09/20/25 5:13am
As a new driver, I didn't understand what A and B services were when I first bought my car, but later figured it out at the 4S shop. The A service is a minor maintenance, done roughly every 5,000 kilometers or six months. It mainly involves changing the oil filter and checking the tires, costing around three to five hundred yuan—pretty straightforward. The B service is a major maintenance, performed every 10,000 kilometers or once a year. It includes replacing the air filter and spark plugs, checking the braking system and coolant, and can cost over a thousand yuan. Don’t skip it, because neglecting the B service might lead to serious issues like engine overheating or breaking down on the road, which would be a huge hassle. Pay attention to your driving habits—if you drive mostly in the city, more frequent maintenance is better. Keeping your car healthy ensures safety. I read on forums that different brands like Toyota or Volkswagen may have varying service intervals, so always follow the manual.
Was this review help?
5
1
Share
Expand All
DallasLee
11/03/25 5:37am
As a seasoned driver with over a decade of experience driving family cars, I always perform A-maintenance every 8,000 kilometers, which basically involves oil changes and checks on lights and brakes, costing around 400-500 RMB—not expensive at all. B-maintenance is more comprehensive, done every 15,000 kilometers, including transmission fluid replacement and air conditioning system cleaning, which can cost up to around 1,500 RMB. Remember not to delay maintenance until problems arise. For example, during the last B-maintenance, thin brake pads were detected and replaced in time, saving the cost of repairing the brake discs. Long-term neglect can lead to loud noises, high fuel consumption, and an uncomfortable ride. Money-saving tip: It’s more cost-effective to fix minor issues when scheduling B-maintenance. Proper daily maintenance can extend the car’s lifespan by five or six years and increase its resale value. My family agrees that regular maintenance is a worthwhile investment.
Was this review help?
9
5
Share
Expand All
More Forum Discussions

What is the reason for the locking sound after the car is locked?

This situation is most likely caused by internal damage to the central locking system. If this abnormal sound only occurs in one of the car doors, it indicates that the lock cylinder of that particular door is faulty. However, if all the door locks of the vehicle exhibit this issue, it suggests a malfunction in the electric control switch of the door locks. Below is a relevant introduction: Central Locking System: The full name is Central Control Door Lock, which is an automotive accessory that allows remote opening and locking of doors without inserting the key into the lock cylinder. It consists of a door lock switch, actuator, and controller. Maintenance: If such a situation occurs, it is essential to repair the central locking system immediately, as it may affect vehicle usage. When repairing the central locking system, always go to a professional institution or a 4S shop, and ensure that genuine original equipment manufacturer (OEM) parts are used during the repair.
3
0
Share

Which cities have implemented electronic driver's licenses?

The Ministry of Public Security has decided to implement electronic driver's licenses in 28 cities starting from September 1, 2021, including Beijing, Tianjin, Shijiazhuang, Changchun, Daqing, Shanghai, Wuxi, Suzhou, Yancheng, Taizhou, Ningbo, Jiaxing, Nanchang, Jinan, Qingdao, Changsha, Guangzhou, Shenzhen, Nanning, Chongqing, Chengdu, Mianyang, Zigong, Nanchong, Guiyang, Kunming, Xi'an, and Yinchuan. Here's some relevant information: Electronic driver's license: The function of an electronic driver's license is to accept road inspections by relevant personnel in the absence of a paper driver's license. The introduction of electronic driver's licenses indeed makes it more convenient for drivers when going out. Especially for those forgetful drivers, this type of license provides a certain level of ease during driving inspections. Note: It should be noted that this type of driver's license is not universally implemented across the country. Although it is convenient, to avoid other incidents, it is best to carry a paper driver's license when going out.
6
2
Share

Can You Continue Driving When the 4WD Light Is On?

You should not continue driving when the 4WD light is on. During driving, if the warning light comes on, the 4WD mode will switch to 2WD mode. Reduce your speed and visit a 4S shop for inspection as soon as possible. Continuing to drive when the 4WD warning light flashes rapidly may damage the drivetrain. Below are the relevant details: 4WD warning light status: The 4WD warning light is orange and turns off shortly after starting. If the 4WD warning light remains on, it indicates a fault in the 4WD system. If the 4WD warning light flashes rapidly, it means the drivetrain oil temperature is abnormally high. If the 4WD warning light flashes slowly, it indicates a difference in speed or radius between the front and rear wheels. Four-wheel drive system: The four-wheel drive system (4WD system) changes the engine's driving force from two-wheel drive (2WD) to four-wheel drive. The reason the 4WD system is considered part of the active safety system is mainly because it offers better engine driving force application efficiency than 2WD, achieving more effective tire traction and steering force.
1
4
Share

How many points can be deducted at most to pass the Subject 2 test?

Subject 2 test allows a maximum deduction of 20 points to pass. According to the "Regulations on the Application and Use of Motor Vehicle Driving Licenses," the full score for the Subject 2 test is 100 points. For large buses, tractors, city buses, medium-sized buses, and large trucks, a score of 90 or above is required to pass, while other vehicle types require a score of 80 or above. Below is relevant information about Subject 2: 1. Subject 2, also known as the small road test, is part of the motor vehicle driving license assessment and refers to the field driving skills test. The test items for small cars C1/C2 include five mandatory tests: reversing into a garage, parallel parking, stopping and starting on a slope, right-angle turns, and curve driving (commonly known as S-turns). Some regions also include a sixth item: high-speed toll collection. 2. The number of Subject 2 test attempts is limited to five: Within the validity period of the driving skill test permit, the number of attempts for Subject 2 and Subject 3 road driving skill tests cannot exceed five. If the fifth attempt is still unsuccessful, the results of other previously passed subjects will be invalidated. 3. Test content: For small cars, small automatic transmission cars, small automatic transmission cars for the disabled, and low-speed trucks, the test includes reversing into a garage, stopping and starting on a slope, parallel parking, curve driving, and right-angle turns.
16
2
Share

Which country is the Kawasaki H2 manufactured in?

Kawasaki H2 is manufactured in Germany. The Kawasaki H2 is a standard super motorcycle, built by Kawasaki Heavy Industries. The H2 is divided into three models: H2, H2 Carbon, and H2R. Among them, the H2 and H2 Carbon are road-legal, while the H2R cannot be ridden on public roads due to its lack of rearview mirrors, which does not meet national safety standards, and is only suitable for track riding. Kawasaki H2's powertrain: It is equipped with a four-cylinder, four-stroke, water-cooled, supercharged engine, using electronic ignition, paired with a 6-speed international gearbox. Kawasaki H2 Carbon's configuration: The dashboard features a combination of analog dials and a TFT display interface, with screen backgrounds available in black and white, which can automatically adjust based on brightness. There are four optional display modes to choose from according to personal preference. In addition to digital speed and gear indicators, it also includes a boost indicator, boost intake air temperature, etc. Through built-in Bluetooth connectivity to the motorcycle, the rider can access vehicle information via a smartphone. The operation utilizes a transmission with MotoGP racing technology, equipped with an assist and slipper clutch system, facilitating quick gear shifts. In terms of electronic controls, the bike includes features such as KLCM, KTRC, and KIBS to assist riders in various road conditions.
15
0
Share

Can the original timing belt last for 10 years?

It cannot last for ten years. The timing belt of a motor vehicle typically needs to be inspected and replaced after about eight years of use. The material of the timing belt is rubber, which will age over time and may even break in severe cases, affecting the normal operation of the motor vehicle. This requires attention. Below are the relevant details: The function of the timing belt: The timing belt of a vehicle controls the intake and exhaust systems of the motor vehicle. Only with normal intake can the motor vehicle start, and only with normal exhaust can it operate. This must not be overlooked. Replacement of the timing belt: Replacing the timing belt requires specialized tools and the disassembly of related engine components. It must be done at a repair shop to ensure proper replacement. After replacement, the timing belt can be used normally.
1
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.