What a VIN is, and can DVLA check one?
A VIN is a car's vehicle identification number. Every car registered in the UK has to have its own VIN, stamped into it, as well as a number plate.
The VIN is usually stamped into the chassis, so plenty of UK drivers call it the chassis number. Forms sometimes say frame number. All three mean the same thing.
The number plate isn't the VIN. A plate can be moved or cloned; the VIN stays with the car.
So can DVLA check a VIN for you? Not through its free service.
DVLA's vehicle enquiry service works from the registration number. It shows tax, SORN status, MOT expiry, first-registration date, year of manufacture and more, and it doesn't show the VIN. gov.uk's MOT history and recall checks work from the reg too.
Instead, gov.uk tells you to check the car itself. Its used-car checklist says: "Check the vehicle identification number and engine number. Make sure these match the details on the log book."
The V5C is the logbook.
Where to find the VIN on a car
Start with the V5C. The VIN is printed on it, usually in its vehicle details. Our guide to V5C logbook checks covers the rest of the document.
On the car itself, look first for the VIN you can read from outside. On many cars there's a plate or label at the base of the windscreen, readable through the glass. You don't need to open anything or ask first.
Next, open a door. The maker's plate, sometimes a label, carries the VIN too. It's often on a door pillar, which you can read with the door open. On cars built to current rules, it's a metal plate held on with rivets, or a tamper-evident self-adhesive label.
Then find the one that matters most: the number stamped into the metal.
It's often in the engine bay, on the bulkhead, an inner wing or around a suspension turret, or in the floor. On some cars it's under a flap in the carpet, or under the carpet itself.
Where it is depends on the make and model, and the owner's handbook says where. Some makers put their handbooks online, so you can look it up before you go.
Last, the engine number, which gov.uk's checklist also has you check against the logbook. Many cars have it stamped on the engine itself, and the handbook will tell you where. Engines can be swapped, so the engine number alone isn't proof of identity. A keeper who changes the engine has to put the new number on the V5C.
What to do at the car
Do it in this order.
- Ask to see the V5C.
- Read the VIN at the windscreen, if there is one, and the one at the door.
- Find the stamped number in the metal and read it.
- Read the engine number.
- Check the characters. A modern VIN has 17, with no I, O or Q anywhere, and the last four are digits only.
- Compare all of them with the V5C, character by character. One character out is still a mismatch.
- Photograph the stamped number, the plates, the engine number and the V5C. You can then compare them later without the seller watching.
If the seller hasn't brought the V5C, you can't compare the numbers with it, and our guide to buying a car without a V5C covers where that leaves you.
If it doesn't match
If the VIN doesn't match the V5C, it can mean the paperwork belongs to a different car. What to do there and then:
- Don't agree to buy it or hand over any money until you know why.
- Ask the seller why the numbers differ.
A VIN that's been re-stamped can have an honest explanation. If a car's chassis or body shell has been replaced with an identical one, and DVLA agreed to it, DVLA sends a letter. The letter says the original VIN can be stamped on the new one. The new V5C then carries a marker in its Special Notes section.
So ask for two things: the DVLA letter, and the V5C with the Special Notes marker. Ask what the marker says, because Special Notes also cover modified, rebuilt, electric-conversion and kit-built cars.
A cloned car is a stolen car given the identity of another, genuine car. Police have found clones with false VINs and replacement labels.
An online check on a clone can look normal, because the records belong to the genuine car. No check can see the number stamped in the metal, so put your own eyes on it. And a VIN that matches the V5C doesn't by itself prove that the car is genuine.
Once police identify a car as a clone, they seize it, and the buyer doesn't get it back. If you bought it privately, you'll often have little or no way to get your money back. If you think the car is a clone, report it to the police.
A scuffed VIN label on the door isn't an MOT fail on its own, as long as another VIN on the car is complete and legible.
What the 17 characters mean
A modern VIN has 17 characters, and the first three are the maker's code. The letters I, O and Q aren't used anywhere in it, and the last four characters are digits only. Older cars can have shorter or differently formatted chassis numbers, and that isn't a fault.
What a VIN decoder and a history check show
A free VIN decoder reads the specification the maker encoded, such as engine or body style. It doesn't show theft, finance or write-off records, because none of that is in the number. To see those, you need a history check run against the registration, such as our Comprehensive check.
Our Basic check gives you the end of the VIN, the engine number and the date on the car's valid V5C, if we have them for that car. Compare them with the car and the V5C. The sample Basic report shows how the section reads.
The Comprehensive check includes everything in Basic and adds finance, stolen, write-off and valuation data. The rest of our guide to car history checks covers what those records tell you.
Common questions about VINs
Can I get a car's VIN from its number plate?
Not from DVLA's free vehicle enquiry service. It works from the registration number and doesn't show the VIN. DVLA supplies its vehicle data, VINs included, to vehicle-check companies under contract. Our Basic check shows the end of the VIN, if we have it for that car. The whole number is on the V5C and on the car itself.
What if the VIN doesn't match the V5C?
Don't agree to buy it or hand over any money until you know why the numbers differ. A re-stamped VIN can have an honest reason, with a DVLA letter to prove it. The "If it doesn't match" chapter above says what to ask for.
Can a car's VIN ever change?
Only if DVLA is involved. After a like-for-like chassis or bodyshell replacement, DVLA can confirm by letter that the original VIN can be stamped on the new part. If the original VIN can't be proved, DVLA may require a replacement identity number. If the car passes DVLA's assessment, it sends an authorisation letter before the car is stamped and registered.
Is the VIN the same as the chassis number, and how long is it?
Yes. UK drivers say chassis number, forms sometimes say frame number, and they all mean the same thing. A modern VIN has 17 characters. Older cars can have shorter or differently formatted chassis numbers, and that isn't a fault.