Why is the 9-digit engine number only showing 6 digits?

2 Answers
ValeriaRose
07/24/25 1:30am
There are 3 English letters at the beginning, representing the engine model. The vehicle engine number can be found on the engine block or on the vehicle registration certificate. Here is relevant information: 1. Engine number: The engine model is marked by the manufacturer according to relevant regulations or industry practices to indicate engine-related information. This includes the engine's manufacturer, specifications, performance, features, technology, purpose, and production batch. 2. Composition: It consists of 17 digits and letters. Based on the principle of permutation and combination, it will not repeat within 30 years. Its function is to effectively identify the vehicle, and this set of numbers is required for procedures such as vehicle transfer registration.
Was this review help?
17
4
Share
KeeganAnn
08/10/25 9:10pm
I run an auto repair shop and have seen many similar cases. The engine number is supposed to be 9 digits, but sometimes only 6 are visible, which is quite common. It could be because the manufacturer omitted certain prefixes or suffixes during production, or there might be missing digits during printing, especially in some imported or older models. Don’t worry too much—it won’t cause issues while driving. As long as the Vehicle Identification Number (VIN) is complete, the full number can be traced. I recommend checking your vehicle registration certificate or the body plate to verify. If they don’t match, it might be an input error, so make sure to correct it at the DMV promptly to avoid registration hassles. During routine maintenance, ask the technician to check if the plate is worn to prevent confusion. Overall, the length of the number doesn’t affect performance—it’s just a record identifier.
Was this review help?
9
1
Share
Expand All
More Forum Discussions

How to Detect Cooling System Failures in Car Engines?

Methods for detecting cooling system failures in car engines include: 1. Check if the shutters are closed or have insufficient opening; 2. Inspect the tightness of the fan belt; 3. Verify the normal operation of the fan clutch and the correct direction of the fan blades; 4. Examine the working efficiency of the water pump. The causes of cooling system failures in car engines are: 1. Shutters being closed or having insufficient opening; 2. Slippage of the radiator fan belt or damage to the fan blades; 3. Poor performance of the temperature control switch for the electronically controlled fan; 4. Low rotational speed of the axial flow blower in the cooling system, obstructed air ducts, or poor air diversion.
1
3
Share

How to Identify Genuine vs. Fake Engine Oil?

Methods to identify genuine engine oil are as follows: 1. Check the oil cap: High-quality engine oil caps usually have neat and smooth edges, with a one-time sealing cap. If the cap appears rough, lacks a "pull-tab" seal, or can be directly unscrewed, it is likely repackaged oil. 2. Look for the anti-counterfeit code on the container: Genuine oil containers have clear anti-counterfeit codes. Fake oil may lack such codes or have blurry ones that can be easily rubbed off. Many legitimate oil manufacturers provide various anti-counterfeit verification methods, such as anti-counterfeit labels, QR codes, product serial numbers, special markings, official websites, customer service hotlines, SMS verification, etc. Diligent verification can help avoid purchasing fake oil. 3. Examine the container material and craftsmanship: Genuine products have intact materials and clear printing, while counterfeit ones often have rough edges and uneven surfaces.
18
0
Share

What Are the External and Internal Air Circulation Modes in Cars?

External air circulation in cars refers to: when the car's air conditioning system is turned on and connected to the outside air, it draws in air from outside the vehicle for circulation. Internal air circulation refers to: when the air conditioning system is turned off from external air intake, it can only use the air inside the vehicle for circulation. The icon for external air circulation is a car with an unenclosed arrow pointing from outside into the car, and its function is to replenish fresh air and improve the air quality inside the vehicle. The icon for internal air circulation is an enclosed car with a circular arrow inside, and its function is to promptly prevent external dust and harmful gases from entering the car. The usage methods for external and internal air circulation are: use external circulation on highways, and use internal circulation in traffic jams.
18
4
Share

What does AWD mean on a car?

AWD on a car refers to the All-Wheel Drive system, which is commonly equipped on off-road vehicles and high-performance sedans. The All-Wheel Drive system is a driving device where all four wheels independently propel the vehicle at all times. It distributes driving force to all four tires through a central differential and independent differentials on the front and rear axles. The functions of the All-Wheel Drive system are: 1. On hard surfaces or during rainy turns, the speed difference between the front and rear wheels is absorbed by the central differential, providing more reliable four-wheel traction; 2. On snowy, icy, or swampy terrain, the central differential is locked, and it is unlocked when returning to normal road conditions.
20
5
Share

What are the differences between manual transmission cars and automatic transmission cars?

Manual transmission cars and automatic transmission cars differ in the following aspects: 1. Different operation difficulty: Manual transmission cars rely on the driver to press the clutch to complete gear shifting operations; Automatic transmission cars rely on the hydraulic transmission automatic shifting principle of the torque converter to complete gear shifting. 2. Different safety: Coasting in neutral gear in manual transmission cars will cause the vehicle to lose power, resulting in understeer during turns; Automatic transmission cars cannot drive in neutral gear, maintaining power support throughout the entire journey for enhanced safety. Manual transmission cars use manual shifting mechanical transmissions to adjust speed. Automatic transmission cars do not require the driver to shift gears manually, as the vehicle automatically selects the appropriate gear based on driving speed and traffic conditions.
16
0
Share

What is the difference between auto hold and electronic handbrake?

Auto hold and electronic handbrake differ in the following aspects: 1. Operation method: Auto hold does not require manual button pressing; electronic handbrake needs to be manually activated. 2. Working principle: Auto hold is an extended function of electronic handbrake; electronic handbrake replaces the mechanical handbrake lever with a button. 3. Usage scenarios: Auto hold is suitable for urban road conditions; electronic handbrake is used for daily parking. Auto hold refers to the vehicle's intelligent electronic handbrake, which is a function within the braking system. It automatically engages the handbrake for safety after the vehicle stops, and lightly pressing the accelerator will automatically release the handbrake effect. Electronic handbrake is a technology that achieves parking brake through electronic control, using the friction generated between the brake disc and brake pads to control parking braking.
11
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.