···
Log in / Register

What is a car VIN number?

4 Answers
DiDamian
09/05/25 7:34am

A car VIN number is a unique code consisting of seventeen letters and numbers used to identify a vehicle. It contains information about the manufacturer, engine, chassis number, and other specifications. To avoid confusion with the numbers 1, 0, and 9, the letters I, O, and Q are not used. Additionally, the 10th character representing the production year excludes I, O, Q, U, Z, and 0. Digits four through eight of the VIN indicate the engine and transmission model, which must match the information on the assembly label without any discrepancies. From the body style perspective, many vehicles have corresponding configurations and shapes that indicate details such as the number of doors, window drop, and loading characteristics.

Was this review help?
18
2
Share
StKaleb
09/17/25 7:48am

The VIN number, which we commonly refer to as the Vehicle Identification Number, is like a unique ID for each car, just like a fingerprint. Having driven for decades, I use it every time I buy or service a car. The VIN is a 17-character alphanumeric code, usually engraved on the lower-left corner of the windshield or the driver's side door frame. It reveals details like the manufacturer, model, and year of the vehicle—especially useful when checking records after an accident to avoid buying a rebuilt car. I find it hassle-free for insurance claims since insurers can quickly verify vehicle details. Nowadays, with advanced technology, scanning the VIN through an app can reveal maintenance history and recalls, making things incredibly convenient. Every seasoned driver knows this little trick to protect themselves.

Was this review help?
1
3
Share
Expand All
MadelynLynn
10/31/25 8:17am

I think the car VIN number is super cool, it's like the DNA code of a car, a unique 17-digit identifier. I love studying it when working on cars—I always check it before modifications or part replacements to avoid compatibility issues. The VIN location is easy to find, either under the windshield or on the passenger door frame, and it's also listed in the vehicle manual. It can decode a car's origins: the first three digits represent the manufacturer, the fourth to eighth digits indicate specific configurations, and the last digits show the year and production location. As a young car enthusiast, I often use websites to check VINs for accident history, helping friends avoid wasting money when buying cars. It's also useful in anti-theft systems—thieves can hardly forge it.

Was this review help?
2
2
Share
Expand All
McArianna
12/14/25 8:25am

From a technical perspective, the Vehicle Identification Number (VIN) is a standardized 17-digit code used globally. I work with it daily in auto repair—it helps quickly identify vehicle models and locate service manuals. Its structure is straightforward: the first three digits represent the manufacturer code, positions 4-8 describe vehicle characteristics like engine type, the ninth digit is a check digit for authenticity verification, and the tenth indicates the production year (e.g., 2023). It's highly practical—inputting the VIN during maintenance pulls up original data instantly, saving parts lookup time. I also use VINs to check voltage issues or recall campaigns, ensuring road safety. Never underestimate it—clear records directly reduce failure rates.

Was this review help?
8
3
Share
Expand All
More Forum Discussions

Does a cumulative score of 6 points on 12123 mean a deduction of 6 points?

A cumulative score of 6 points on 12123 means a deduction of 6 points. C1 driver's license violation point deduction rules: 1. 1 point: Failure to carry the vehicle license or driver's license; vehicle not displaying annual inspection sticker; vehicle not displaying required stickers; improper use of lights and hazard lights; front passenger not wearing a seatbelt, 1 point deducted, fined 50 yuan. 2. 2 points: Cutting in line during traffic jams or occupying the opposite lane; not waiting in the designated lane at traffic lights; overloading less than 20%. 3. 3 points: Failing to slow down, stop, or yield to pedestrians; using a mobile phone while driving, fined 100 yuan; not following no-entry markings; turning vehicles not yielding to straight-going vehicles or pedestrians; right-turning vehicles not yielding to left-turning vehicles; improper driving; speeding but not exceeding 50% of the speed limit; not yielding to special vehicles; improper overtaking or driving in the wrong direction; not wearing a seatbelt, fined 100 yuan. 4. 6 points: Continuing to drive after the driver's license has been temporarily suspended; driving in the emergency lane during traffic jams; failing to yield to school buses as required; running a red light; front passenger under 14 years old, 6 points deducted, fined 300 yuan. 5. 12 points: Reversing, driving in the wrong direction, or making U-turns across the central divider on highways; speeding more than 50% over the limit; drunk driving; fleeing the scene of an accident without constituting a crime; not displaying, forging, altering, or improperly installing license plates, or intentionally obscuring or damaging license plates.
10
5
Share

Where is the cabin air filter located in the Buick Regal?

The cabin air filter in the Buick Regal is located behind the glove box on the passenger side. The functions of the cabin air filter are: 1. Providing fresh air; 2. Absorbing harmful substances; 3. Filtering solid particles. Taking the 2020 Buick Regal as an example, it belongs to the mid-size sedan category with body dimensions of: length 4904mm, width 1863mm, height 1461mm, wheelbase 2829mm, and trunk capacity 441L. The 2020 Buick Regal is equipped with a 1.5T turbocharged engine delivering maximum horsepower of 169PS, maximum power of 124kW, and maximum torque of 250Nm, paired with a 9-speed automatic transmission.
12
0
Share

How Does Car Damage Insurance Compensate for a Totaled Vehicle?

Car damage insurance has a certain deductible amount, which varies depending on the insurance company, typically ranging from 5% to 20%. The specific amount is based on the coverage of the car damage insurance. Below is the relevant information: 1. Car Damage Insurance: Car damage insurance provides compensation for vehicle repairs or total loss after an accident. Of course, the compensation depends on liability. If the accident involves another vehicle and the other party is fully at fault, their third-party liability insurance will cover the compensation. Car damage insurance mainly covers damages for which the driver is responsible or damages caused by single-vehicle accidents. 2. Totaled Vehicle: A vehicle that meets the national scrapping standards or, although not meeting the national scrapping standards, has a severely damaged engine or chassis and fails to meet the national safety technical requirements for motor vehicle operation or the national pollutant emission standards for motor vehicles is referred to as a totaled vehicle.
18
3
Share

Where to Collect the Vehicle Inspection Sticker?

Vehicle inspection stickers can be collected at the vehicle management office or at inspection stations designated by the vehicle management office. To collect the sticker, you need to bring your vehicle registration certificate, compulsory traffic insurance, and ID card. The vehicle inspection process is as follows: 1. Fill out two forms: the Motor Vehicle License Plate Application Form and the Motor Vehicle Inspection Record Form; 2. Go to the annual inspection data entry window to submit and review the materials; 3. Visit the violation inquiry window—if there are any violations, pay the fines here; 4. Have an inspector perform an external inspection of the vehicle, which includes opening the hood and checking the chassis number. The inspector will provide a signed inspection approval page, which you then take to the inspection fee payment window to receive an invoice; 5. Proceed to the inspection login window and leave all materials there; 6. Wait in line for the inspection, and after completion, you will receive an inspection report; 7. Submit the annual inspection materials to the staff; 8. Upon passing the inspection, the annual inspection sticker will be issued.
18
5
Share

What to Do When the Trunk of an Audi A6 Won't Open?

Audi A6 trunk won't open solution: Locate the mechanical lock hole of the trunk, turn the key counterclockwise by 90 degrees to open it. Taking the 2021 Audi A6 as an example, it belongs to the mid-to-large-sized car category, with body dimensions of: length 5038mm, width 1886mm, height 1475mm, wheelbase 3024mm, fuel tank capacity 73l, and curb weight 1800kg. The 2021 Audi A6 features a front suspension of five-link independent suspension and a rear suspension of five-link independent suspension. It is equipped with a 2.0l turbocharged engine, delivering a maximum horsepower of 190ps, maximum power of 140kw, maximum torque of 320nm, paired with a 7-speed dual-clutch transmission.
13
4
Share

Can a Car Designed for 92 Octane Use 95 Octane Fuel?

92 and 95 octane fuels should not be mixed. If you accidentally use the wrong gasoline grade occasionally, simply switch back to the correct grade after the current tank is used up. However, prolonged use of the wrong octane fuel can have the following impacts: For vehicles designed for lower octane fuel, using a higher octane grade will not cause damage, but the increased octane rating alters the fuel's ignition point, potentially leading to delayed combustion in the engine. This results in reduced engine power output and thermal efficiency, with the practical effect being noticeably poorer performance. For vehicles requiring higher octane fuel, using a lower grade can cause engine knocking. The significantly lower octane rating decreases the fuel's ignition point, causing premature ignition during the compression stroke. If combustion occurs before the spark plug fires, resistance builds up during the upward stroke. This resistance makes the engine run very unevenly. Mild knocking may only increase noise without obvious engine damage, but severe knocking indicates serious engine issues, affecting not just driving stability but also causing abnormal wear on pistons and cylinders, with potential cylinder scoring in extreme cases. Besides checking your vehicle's manual for the recommended fuel grade, you can also find this information on the fuel filler cap. Typically, fuel grade can also be determined by the engine's compression ratio: vehicles with compression ratios between 8.6-9.9:1 should use 92 octane, while those with 10.0-11.5:1 ratios require 95 octane. However, with modern technologies, compression ratio alone doesn't always determine fuel requirements. High compression engines can sometimes be tuned to use lower octane fuel due to factors like ignition timing, turbocharging technology, or Atkinson cycle technology. Generally, higher octane fuels contain more isooctane and have better anti-knock properties. 92 octane gasoline contains 92% isooctane and 8% n-heptane, while 95 octane fuel contains 95% isooctane and 5% n-heptane.
17
3
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.