Advice7 min read39 views
Updated 31 October 2026 · Written by the Wahanaya.lk team
Compare the chassis number stamped on the vehicle with the one printed in the CR book, then verify it free on the Sri Lanka Customs portal and the RMV's online vehicle information service before you pay any deposit.
If you're buying a used car, van, or bike in Sri Lanka, check the chassis number stamped on the vehicle against the one printed in its CR book, then run that same number through the Sri Lanka Customs Vehicle Verification Portal and the RMV's online vehicle information service. Do this before you pay any deposit, not after — once money changes hands, undoing a fraud is far harder.
The chassis number is the vehicle's permanent identity — it's how the RMV, Sri Lanka Customs, your insurer, and the leasing company all know this exact vehicle, separate from any other. If someone alters it — to disguise a stolen vehicle, hide an accident rebuild, or register an illegally imported vehicle under false documents — everything built on top of that number (the CR book, the revenue licence, the insurance policy) becomes unreliable. Sri Lanka's Motor Traffic Act treats a tampered chassis number as serious: it's grounds for the RMV to refuse registration or strike the vehicle off the register entirely, which can leave a buyer holding a vehicle they can't legally use.
Open the CR book to the page showing the chassis number and physically compare it, digit by digit, with the number stamped on the vehicle. On most cars this is on the firewall in the engine bay, near the windscreen, or on a plate riveted to the body near the radiator support; the exact spot depends on the make and model, so don't assume — just match what's in front of you against the document. Look closely at the font, spacing, and metal around the stamp. Uneven letter spacing, a patch of fresh paint or underseal over the area, grinding marks, or a slightly different panel colour around the stamp are all signs the area has been worked on. If you're not confident reading these signs yourself, bring a mechanic or someone from the trade who checks vehicles regularly — this is exactly what traffic police and the RMV recommend to buyers.
The Department of Motor Traffic runs an online portal at eservices.motortraffic.gov.lk where you enter the registration number and chassis number to pull up vehicle details. A free "limited" information request gives you basic details, while a paid "full" information request — priced at roughly Rs. 150 as of October 2026, so check the current fee on the site — returns the registered owner's name and address, the engine number, vehicle class, make, model, year of manufacture, date of registration, and any mortgage or absolute-ownership notes. Cross-check every one of these against what the seller has told you and what's printed in the CR book. If the owner's name on the portal doesn't match the person standing in front of you, ask why before going any further — and see our guide on how to check a vehicle's ownership history at the RMV if anything looks off.
Sri Lanka Customs runs a separate, free portal at services.customs.gov.lk/vehicles specifically to confirm whether a vehicle was legally imported. You enter your mobile number, your NIC or passport number, and the vehicle's chassis number, and Customs sends an SMS confirming the vehicle's legal import status. As of October 2026, this system covers cars and other motor vehicles imported from 2002 onwards and motorcycles imported from 2011 onwards, according to Sri Lanka Customs' own announcement. It can flag vehicles that were never legally imported, vehicles assembled locally from smuggled parts, or vehicles carrying fraudulent number plates. If a chassis number doesn't appear in the system at all, that alone isn't automatic proof of fraud for an older vehicle — but it's a reason to contact Customs directly and ask, rather than shrugging it off.
Because the checks above only confirm that a chassis number exists in a government database — they can't tell you whether the physical stamp on the vehicle in front of you has been altered to show a different, "clean" number than the vehicle actually carries. This isn't a theoretical risk: in March 2026, Sri Lanka's own Commissioner General of Motor Traffic was arrested after the CID's Financial Investigation Division found he had allegedly aided the illegal alteration of a vehicle's chassis number and its fraudulent registration. If that kind of manipulation can happen at the top of the system, it can certainly happen to an individual vehicle lower down the chain — which is exactly why RMV officials themselves tell buyers to physically check the chassis and engine numbers, not just trust the certificate.
Many buyers only glance at the CR book and never actually crouch down to find the stamped chassis number on the vehicle itself — they trust the document on its face. Others check the chassis number online once, early in the process, and then forget to re-check it if the seller swaps which vehicle they're showing, or if there's a long gap between viewing and paying. A common and costly mistake is handing over a deposit before any verification is done, because the seller says "it's urgent, someone else is interested." Buyers also sometimes skip the engine number entirely — it should appear in the full RMV report and should be checked against the stamp on the engine block, usually on the crankcase. Finally, people buying from a rent-a-car fleet or a seller in a hurry to offload a vehicle sometimes skip verification altogether, when these are exactly the situations where it matters most.
Treat chassis and engine number verification as a non-negotiable step, not an optional extra, every time you buy a used vehicle in Sri Lanka — whether it's a city car from Colombo or a double cab from a seller in Kurunegala.
Checklist before you pay anything:
Browse verified listings on /vehicles, compare the asking price on /price-check, and work out your monthly payment on /leasing if you're financing the purchase. Once you're ready to buy, our safety tips page covers more on meeting sellers safely, and if anything about a chassis or engine number looks off, ask the community on the Wahanaya forum before you commit.
Check the chassis and engine numbers stamped on the vehicle against the CR book, confirm the seller matches the registered owner's NIC, and cross-check the registration on DMT eServices before you pay. If anything doesn't match exactly, walk away or verify at an RMV office first.
Wahanaya.lk team7 min read
Enter the car's chassis number, your NIC/passport and mobile number at Sri Lanka Customs' Vehicle Verification Portal (services.customs.gov.lk/vehicles) and you'll get an SMS confirming whether it was legally cleared, locally assembled from imported parts, or fitted with fraudulent number plates.
Wahanaya.lk team6 min read
Absolute owner on a CR book means a finance company or bank still legally owns the vehicle under an unpaid lease or loan. You can buy it, but the financier must give a written release before DMT transfers it to you.
Wahanaya.lk team6 min read
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