Used Car Check: The 15-Minute Filter Before You Buy

How To11 min read

This 15-minute filter is useful at the first meeting with the seller, before you negotiate seriously, leave a deposit or pay for a comprehensive inspection. It cannot prove that a car is good: for the engine, gearbox, suspension, structure and hidden electronic faults, you need a service shop, a lift and, sometimes, diagnostics. It can, however, answer the more urgent question: are there enough warning signs that you should walk away or not proceed without an independent inspection?

The basic rule is simple: do not start with the test drive, and do not let yourself be rushed by the idea that “another buyer is coming.” Start with the car’s identity and documents. A discrepancy between the paperwork, VIN and vehicle matters more than an impeccably polished body.

What to prepare before the meeting

Before you leave home, ask the seller for the 17-character VIN, a clear photograph of the Vehicle Identity Card (CIV), the registration certificate and, if available, service invoices. Ask for the car to be unstarted before you arrive. An engine that is already warm can conceal a start-up noise, smoke or unstable idle that you will no longer be able to notice.

Put a torch in your phone—even during the day—and prepare a short list of questions. You do not need a magnet, paint-depth gauge or diagnostic tool to do the initial screening; these tools can help, but they should not replace the documents and careful observation.

The 15-minute route: stop the major risks first

Time	What to check	What result to look for
0–3 minutes	CIV, registration certificate, VIN	The same identity across all documents and on the car
3–5 minutes	ITP and the available RAR history	Documents and data that make sense together
5–8 minutes	Bodywork, glass, tyres, leaks	No obvious signs of an accident, uneven wear or leaks
8–11 minutes	Cold start and dashboard	Warning lights that go out normally, engine with no obvious symptoms
11–15 minutes	Short test drive	Predictable braking, steering, clutch/gearbox operation and noises

Minutes 0–3: compare the documents with the car, not just the listing

Ask for the original CIV and registration certificate. Compare the make, model, fuel type, engine capacity, year and, above all, the VIN. The VIN is the car’s unique identifier; it must be identical in the documents and at the locations on the vehicle specified by the manufacturer. It may be visible at the base of the windscreen, in the engine bay, on a body pillar or elsewhere specific to the model.

Look closely at the physical area where the number is stamped. Do not try to clean it aggressively and do not draw conclusions from a trace of dust. But stop the discussion if the area appears to have been ground down, locally repainted without explanation, severely corroded, or if the number is difficult to read. An identification problem is not a defect you can simply “deduct from the price”. RAR warns that non-compliance relating to identification elements may lead to the vehicle being definitively rejected and barred from road use.

In Romania, RAR recommends that buyers request the CIV and verify that the information in the CIV, registration certificate and sales documents matches. For an imported car that has not yet been registered in Romania, do not accept a promise that you will sort out the RAR paperwork later. RAR’s official recommendation is for the seller to obtain the necessary documents before the sale.

Red flag: “We will do the paperwork after you pay”

Do not pay a deposit simply because the seller promises a CIV, certificate of authenticity or other documents “in a few days”. Without the right documents, you may end up bearing the cost of bringing the car into compliance or even be unable to register it. If documents are missing, the safe response is to postpone the transaction, not negotiate.

Minutes 3–5: check the ITP and request RAR Auto-Pass

Using the VIN or CIV number, you can use the official Romanian Vehicle Registry ITP verification page. It shows whether a valid ITP is recorded in the database. A current ITP is not a guarantee that the car has no problems; it only confirms that the vehicle passed its periodic inspection on that date. Still, an expired ITP, inconsistent data or a refusal to provide the VIN are sufficient reasons to put the purchase on hold.

Also request RAR Auto-Pass, preferably before the meeting or, at the latest, before making any payment. The official RAR document includes information held in the register on odometer readings, serious damage reported to important safety systems and matters related to recall campaigns. According to RAR, the certificate is obtained exclusively through the institution, and the published fee is 42 lei. Do not confuse a commercial vehicle-history report with the official document, and do not pay a website that imitates RAR’s name or identity.

To complement the information above, you can also read “The ‘Bank’ or an Institution Is Calling You: What to Do in the First 15 Minutes So You Do Not Lose Money”, an article that develops an aspect directly related to this subject.

An Auto-Pass with no data does not automatically mean the car is clean. The database is populated as the vehicle reaches ITP stations, RAR and authorised operators, and the history from before it entered Romania may be incomplete. Use the document as a consistency check, not as a final verdict. A drop in mileage between two records is a reason to walk away or, at the very least, obtain an expert assessment before any negotiation.

Minutes 5–8: look for visible repairs and costs

Look at the car in natural light, from an angle at the side. Do not look for perfection: a used car may have scratches and stone chips. Instead, look for differences with no simple explanation: different shades between panels, uneven gaps between the bonnet, wing and headlight, headlights with very different levels of wear, paint on seals, bolts with fresh removal marks, or trim that does not sit straight.

Check the windows and headlights for cracks. Open the bonnet and look for fresh fluid traces underneath the engine, a strong fuel smell, improvised wiring or missing caps. Do not open the expansion tank when the engine is hot. Only look at visible levels and ask directly which fluid was topped up recently and why.

For tyres, compare the size, brand, model and left-to-right wear on the same axle. Much greater wear on one side can result from incorrect wheel alignment, worn suspension components or careless use; it does not establish the cause on its own, but it justifies an inspection on a lift. Also check the DOT code, which indicates the week and year of manufacture. A car offered with “good tyres” may have apparently adequate tread, but old, hardened rubber.

If you intend to use the car in winter, tyre condition matters more than having a set in the boot. You can separately consult the rules on winter tyres and driving on roads covered with snow, ice or black ice.

Minutes 8–11: cold-start the engine and watch the dashboard

Before turning the key, switch on the ignition and watch the dashboard. The engine, airbag, ABS and brake warning lights should illuminate during the initial self-check and then go out after starting, in line with the car’s normal operation. A warning light that remains on is not “just a sensor” until a service shop confirms this in writing. Equally suspicious is a dashboard on which certain warning lights do not appear at all when the ignition is switched on.

At start-up, listen with no radio and no conversation. Note whether the engine starts reluctantly, shakes heavily at idle, produces persistent smoke or has obvious metallic knocking. With a diesel, the smoke and sound when cold are worth observing for several dozen seconds, not judging after one acceleration. Do not rev a cold engine hard just to “see how it pulls”.

Switch on the air conditioning, blower, electric windows, wipers and lights. Not to test every function in depth, but to see whether error messages, burning smells, obvious voltage drops or unusual noises appear. If the battery seems weak or the charging warning light stays on, do not automatically assume the battery is the problem; there may be several causes. For a later check, see also how to tell a worn battery from a hidden electrical drain.

Minutes 11–15: the short test drive must have a purpose

You do not need high speed. Ideally, take a route lasting a few minutes that includes pulling away, a slight bump, progressive braking and, where safe and permitted, a few gear changes. The seller must agree; do not drive without a licence, without insurance or in conditions in which you do not feel safe.

Steering: the car should not pull noticeably to one side on a straight, safe road. A very crooked steering wheel, strong vibrations or knocks through the steering wheel require a technical inspection.
Brakes: under progressive braking, the car must remain controllable. An unusually soft pedal, severe vibrations or strong pulling to one side cannot be resolved with a promise.
Gearbox and clutch: difficult shifts, noises when engaging, a slipping clutch or the smell of overheated friction material are reasons for a professional inspection.
Suspension: listen over small bumps. A noise does not precisely identify the faulty part, but it shows that the claim that “nothing knocks” must be checked on a lift.
Temperature and warnings: watch for warning lights or messages after the car starts moving.

Do not negotiate over a safety defect based on a hearsay estimate. A car that brakes poorly, has an airbag/ABS warning light, an unclear VIN or inconsistent documents is not an opportunity; it is a transaction that must be stopped until clarified.

After 15 minutes: three decisions, not just one

1. Walk away. This is the right choice when the documents and VIN do not match, essential documents are missing, signs of tampering with the identification appear, or the seller refuses a reasonable inspection.

2. Continue only with an independent inspection. This is the normal outcome for a car that passes the initial filter. Arrange an inspection at a service shop you choose, with a lift and diagnostics. Request an estimated quote for the problems found, not merely the verbal verdict that “it is good”. The RAR eXpert service is also available for checking identity, technical condition and OBD diagnostics; the RAR page states that the activity is carried out at RAR Grivița, Bucharest, and RAR Cluj. The report reflects the car’s condition at the time of inspection, not its future condition.

3. Negotiate with documentation. Scratches, a set of tyres nearing replacement or a due service can be factored into the price. Put in writing in the contract the displayed mileage, declared defects, promised equipment, documents handed over and any repair the seller undertakes to carry out. Keep the listing, conversations and copies of the documents.

If the car is bought from a used-car lot or dealer

The difference between a professional seller and a private individual matters. Sales to consumers by a professional are governed by the conformity rules in Emergency Ordinance No. 140/2021. In principle, the seller is liable for non-conformities existing at delivery and discovered within two years; for second-hand goods, the period may be reduced by agreement, but not below one year. A non-conformity found in the first year is generally presumed to have existed at delivery, unless proven otherwise.

This does not mean you can skip the technical inspection. It means it is worth requesting a contract, invoice and warranty certificate in clear language, including the remedy procedure. Emergency Ordinance No. 140/2021 provides that a commercial warranty cannot remove the consumer’s legal rights. In a transaction between two private individuals, this consumer-protection regime does not apply in the same way, so the documents, inspection and wording of the contract become even more important.

The short list you can save on your phone

VIN identical in the CIV, registration certificate and on the bodywork.
CIV present; no promises that documents will be obtained after payment.
ITP checked using the RAR tool.
RAR Auto-Pass requested and read as a partial history, not an absolute guarantee.
Bodywork viewed in good light; major differences in shade and alignment noted.
Tyres compared on the same axle: wear, size, DOT.
Engine started cold; dashboard warning lights checked.
Test drive focused on brakes, steering, gearbox and noises.
No deposit before red flags have been clarified.
Inspection at an independent service shop before signing, if the car remains on the shortlist.

The best outcome after 15 minutes is not being able to say, “I bought a good car,” but being able to say: “I found no obvious reasons to lose money before a professional checks it.”

Frequently asked questions

Can you check a used car using only the registration number?

It is not enough. To check the ITP using the RAR tool, you need the CIV number or VIN. The VIN is also the number you must compare with the documents and the car.

Is RAR Auto-Pass a guarantee that the car has not had accidents?

No. The document provides the information held in the RAR register, including certain serious damage and odometer readings. The absence of an entry does not automatically rule out events or repairs that do not appear in the available data.

Is it worth buying a car with a valid ITP?

A valid ITP is necessary for road use, but it is not a pre-purchase assessment. It does not replace an inspection on a lift, diagnostics and a history check.

What defects should immediately stop the purchase?

VIN or document discrepancies, missing essential documents, indications of tampering with the identification number, important warning lights that remain on, and obvious braking or steering problems must be clarified before any payment.

Who pays for a service-shop inspection before purchase?

This is agreed between the parties. What matters is that the service shop is chosen by the buyer and that consent to the inspection is a condition for proceeding with the transaction, not an informal favour.