How many digits is a car engine number?

1 Answers
SanCourtney
07/29/25 10:07am
Common engine numbers typically range between 7-8 digits. The sequence and content of the engine number can vary among different manufacturers. Generally, it includes the engine model, production date, and a randomly assigned serial number given when the engine comes off the production line. Some may also include a location code. Engine model is an identification code assigned by the engine manufacturer in accordance with relevant regulations, company or industry practices, and the attributes of the engine. It is used to represent information such as the manufacturer, specifications, performance, features, technology, purpose, and production batch of the engine, including fuel type, number of cylinders, displacement, and static braking power, among others. Engines installed in passenger cars or multi-purpose passenger vehicles are required to display the professional manufacturer, model, and production number of the engine. It is important to note that the engine number is not the same as the engine model. The engine model refers to the specifications and size of the engine within the manufacturer's product line, and multiple engines can share the same model. The engine number, however, refers to the production number of the engine, where each engine is assigned a unique number that differs from all others. Structure of a car engine number: Front section: Includes product series code, generation symbol, and regional or company code. Manufacturers may choose appropriate letters as needed, but these must be approved and recorded by the industry standardization unit. Middle section: Consists of symbols representing the number of cylinders, cylinder arrangement, stroke, and cylinder diameter. Rear section: Composed of symbols indicating structural features and usage characteristics. Tail section: Distinguishing symbol. When differentiation is needed within the same product series due to improvements or other reasons, manufacturers may choose appropriate symbols. The rear and tail sections can be separated by a hyphen (-).
Was this review help?
12
3
Share
More Forum Discussions

What compensation can be claimed for new car repairs?

When repairing a vehicle during the warranty period, if the repair time exceeds 5 days, compensation can be requested. Users have the right to request a loaner car or reasonable transportation compensation fees. Relevant details are as follows: 1. Warranty Period: The warranty period refers to the duration during which product damage repairs are covered. If the product provided by the seller does not meet requirements, the seller is obligated to provide free repairs during the warranty period. Generally, the 5-year or 100,000-kilometer warranty mainly covers core components of the car, such as the engine, transmission, drivetrain, and chassis. These components have a low probability of failure and high repair costs, so issues with these core parts are rare within 5 years. For wear-and-tear parts like tires, rims, headlights, and brakes, the dealer usually provides a warranty of only 3-6 months or 5,000 kilometers. 2. Repair Costs: During the car's warranty period, as long as the fault or part damage occurs under normal usage conditions, the manufacturer will provide free repairs or replacement of corresponding parts. If a new car owner fails to perform regular maintenance at the designated 4S shop or manufacturer-authorized service station within the specified mileage, even if the car is still under warranty, the owner will have to pay certain repair costs if issues arise.
9
0
Share

What are the requirements for straight-line driving in Subject 3?

Straight-line driving requires the examinee to achieve a smooth start and maintain a basic sequence of driving operations without confusion; to correctly grasp the steering wheel (primarily operated with the left hand) and use the free play of the steering wheel to adjust the driving direction; to master the timing and methods of gear shifting, and be adept at switching between high and low gears at various speeds; and to effectively apply the brake in a timely manner (anticipatory braking for deceleration); as well as to basically master the methods of fixed-point parking and turning around at intersections. The purpose of straight-line driving in Subject 2: 1. Master the technique: Understand the coordination between the clutch and the brake; 2. Control the steering wheel: Learn to control the steering wheel, look straight ahead, and develop good driving habits; 3. Clutch pedal: Familiarize yourself with the function of the clutch pedal, master the "half-clutch" driving method, and skillfully control the vehicle's speed for forward and backward movement.
15
2
Share

What is the standard for labor cost in maintenance?

Labor cost is calculated using a fixed-rate method, which is determined by the automobile manufacturer, and each manufacturer has different labor costs. The following is a related introduction about car maintenance: 1. Introduction to car maintenance: Car maintenance refers to the preventive work of regularly inspecting, cleaning, supplying, lubricating, adjusting, or replacing certain parts of the car, also known as car servicing. 2. The role of car maintenance: Modern car maintenance mainly includes the maintenance scope of the engine system, transmission system, air conditioning system, cooling system, fuel system, power steering system, etc. The purpose of car maintenance is to keep the car clean, maintain normal technical conditions, eliminate hidden dangers, prevent failures, slow down the deterioration process, and extend the service life.
16
4
Share

What is the most common type of C license for driving tests?

Many people choose C1 for their driving test. Here are the specific differences between C1 and C2: 1. Training fee: C1 is cheaper than C2, which can be seen by comparing the prices of different driving schools. This is because the maintenance cost of automatic transmission vehicles is much higher than that of manual transmission vehicles. 2. More C1 training vehicles: There are fewer C2 training vehicles, so taking the C1 test is generally faster than taking the C2 test. The number of manual transmission training vehicles in the driving test market far exceeds that of automatic transmission training vehicles, so queuing for C1 practice is usually faster than for C2. 3. Switching: It is allowed to switch from C1 to C2 during the test, but switching from C2 to C1 is not allowed. 4. Test: The test process is the same; both require passing the five mandatory subjects in the second stage and the road test in the third stage. Comparatively, without a clutch, C2 operation seems easier.
4
2
Share

Does long-term use of mineral oil harm the car?

As long as the engine is running, it will cause wear and tear. Fully synthetic oils outperform mineral oils in terms of flow lubrication, oxidation resistance, and cleaning properties. Otherwise, certain turbocharged cars cannot use mineral oil, which indicates that fully synthetic oils provide better protection. Of course, it is possible that a naturally aspirated engine using mineral oil might last until scrapping without any issues. Here is some information about mineral engine oil: 1. Mineral engine oil: It is a lubricating oil refined from petroleum. The base oil of mineral oil is the residual bottom oil left after the distillation of useful light substances (such as aviation fuel, gasoline, etc.) during the refining process of crude oil, which is then further refined. 2. Characteristics: Mineral oil is currently the most common type of lubricating oil on the market. Although mineral oil is inexpensive, its service life and lubrication performance are inferior to semi-synthetic and fully synthetic oils.
4
3
Share

Where is the highest point of the wiper on a training vehicle?

The highest point is on the far right of the vehicle's windshield. The wiper on a driving test vehicle is very important. During the slope parking and starting test in the second subject of the motor vehicle exam, referencing the position of the wiper allows the vehicle to accurately complete the parking task, which is crucial. Here is some additional information: 1. The wiper on a motor vehicle, also known as a windshield wiper, is a device used to remove raindrops and dust attached to the windshield, improving visibility for the driver and enhancing driving safety. National laws require that almost all vehicles are equipped with wipers, and some models also come with rear wipers. 2. The function of the wiper node: It is commonly used to determine the position of the wheels, such as knowing where the left wheel will pass to avoid running over solid lines or obstacles like potholes and rocks on the road. When the line of sight aligns the protruding node of the left wiper with an object on the ground, the left wheel will pass over that object. For example, if the wiper node aligns with the centerline on the ground, the tire will run over the centerline.
10
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.